1 | // |
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2 | // C++ Implementation: STApplyCal |
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3 | // |
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4 | // Description: |
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5 | // |
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6 | // |
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7 | // Author: Takeshi Nakazato <takeshi.nakazato@nao.ac.jp> (C) 2012 |
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8 | // |
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9 | // Copyright: See COPYING file that comes with this distribution |
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10 | // |
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11 | // |
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12 | #include <assert.h> |
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13 | |
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14 | #include <casa/Arrays/Array.h> |
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15 | #include <casa/Arrays/Vector.h> |
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16 | #include <casa/Arrays/Matrix.h> |
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17 | #include <casa/Arrays/ArrayIO.h> |
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18 | #include <casa/Arrays/ArrayMath.h> |
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19 | #include <casa/BasicSL/String.h> |
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20 | #include <casa/Logging/LogIO.h> |
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21 | #include <casa/Exceptions/Error.h> |
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22 | #include <casa/Utilities/CountedPtr.h> |
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23 | #include <casa/Utilities/Sort.h> |
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24 | #include <casa/Utilities/Assert.h> |
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25 | #include <tables/Tables/Table.h> |
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26 | |
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27 | #include "Scantable.h" |
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28 | #include "STApplyCal.h" |
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29 | #include "STApplyTable.h" |
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30 | #include "STCalTsysTable.h" |
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31 | #include "STCalSkyTable.h" |
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32 | #include "STCalEnum.h" |
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33 | #include "STIdxIter.h" |
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34 | #include "Calibrator.h" |
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35 | #include "PSAlmaCalibrator.h" |
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36 | #include "Interpolator1D.h" |
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37 | #include "NearestInterpolator1D.h" |
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38 | #include "BufferedLinearInterpolator1D.h" |
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39 | #include "PolynomialInterpolator1D.h" |
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40 | #include "CubicSplineInterpolator1D.h" |
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41 | #include <atnf/PKSIO/SrcType.h> |
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42 | |
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43 | |
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44 | using namespace casa; |
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45 | using namespace std; |
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46 | |
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47 | namespace { |
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48 | template<class Accessor, class Type> |
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49 | class AccessorInterface |
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50 | { |
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51 | public: |
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52 | typedef Type TableType; |
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53 | static void GetSortedData(const vector<TableType *> &tablelist, |
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54 | const Vector<uInt> &tableIndex, |
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55 | const uInt nrow, |
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56 | const uInt nchan, |
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57 | Vector<Double> &time, |
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58 | Matrix<Float> &data, |
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59 | Matrix<uChar> &flag) |
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60 | { |
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61 | Vector<Double> timeUnsorted; |
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62 | Matrix<Float> dataUnsorted; |
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63 | Matrix<uChar> flagUnsorted; |
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64 | GetFromTable(tablelist, tableIndex, nrow, nchan, |
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65 | timeUnsorted, dataUnsorted, flagUnsorted); |
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66 | SortData(timeUnsorted, dataUnsorted, flagUnsorted, |
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67 | time, data, flag); |
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68 | } |
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69 | private: |
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70 | static void GetFromTable(const vector<TableType *> &tableList, |
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71 | const Vector<uInt> &tableIndex, |
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72 | const uInt nrow, |
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73 | const uInt nchan, |
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74 | Vector<Double> &time, |
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75 | Matrix<Float> &data, |
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76 | Matrix<uChar> &flag) |
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77 | { |
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78 | time.resize(nrow, False); |
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79 | const IPosition shape(2, nrow, nchan); |
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80 | data.resize(shape, False); |
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81 | flag.resize(shape, False); |
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82 | uInt rowIndex = 0; |
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83 | for (uInt i = 0 ; i < tableIndex.nelements(); i++) { |
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84 | TableType *p = tableList[tableIndex[i]]; |
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85 | Vector<Double> t = Accessor::GetTime(p); |
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86 | Matrix<Float> dt = Accessor::GetData(p); |
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87 | Matrix<uChar> fl = Accessor::GetFlag(p); |
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88 | for (uInt j = 0; j < t.nelements(); j++) { |
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89 | time[rowIndex] = t[j]; |
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90 | data.row(rowIndex) = dt.column(j); |
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91 | flag.row(rowIndex) = fl.column(j); |
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92 | rowIndex++; |
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93 | } |
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94 | } |
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95 | } |
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96 | |
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97 | static Vector<uInt> IndexSort(const Vector<Double> &t) |
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98 | { |
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99 | Sort sort; |
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100 | sort.sortKey(&t[0], TpDouble, 0, Sort::Ascending); |
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101 | Vector<uInt> idx; |
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102 | sort.sort(idx, t.nelements(), Sort::QuickSort|Sort::NoDuplicates); |
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103 | return idx; |
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104 | } |
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105 | |
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106 | static void SortData(const Vector<Double> &key, const Matrix<Float> &data, |
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107 | const Matrix<uChar> &flag, |
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108 | Vector<Double> &sortedKey, Matrix<Float> &sortedData, |
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109 | Matrix<uChar> &sortedFlag) |
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110 | { |
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111 | Vector<uInt> sortIndex = IndexSort(key); |
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112 | uInt len = sortIndex.nelements(); |
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113 | IPosition shape = data.shape(); |
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114 | shape[0] = len; |
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115 | Int64 nelements = shape.product(); |
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116 | sortedKey.takeStorage(IPosition(1, len), new Double[len], TAKE_OVER); |
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117 | sortedData.takeStorage(shape, new Float[nelements], TAKE_OVER); |
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118 | sortedFlag.takeStorage(shape, new uChar[nelements], TAKE_OVER); |
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119 | for (uInt i = 0 ; i < len; i++) { |
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120 | sortedKey[i] = key[sortIndex[i]]; |
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121 | } |
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122 | for (uInt i = 0; i < len; ++i) { |
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123 | sortedData.row(i) = data.row(sortIndex[i]); |
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124 | sortedFlag.row(i) = flag.row(sortIndex[i]); |
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125 | } |
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126 | } |
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127 | |
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128 | }; |
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129 | |
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130 | class SkyTableAccessor : public AccessorInterface<SkyTableAccessor, asap::STCalSkyTable> |
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131 | { |
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132 | public: |
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133 | static Vector<Double> GetTime(const TableType *t) {return t->getTime();} |
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134 | static Matrix<Float> GetData(const TableType *t) {return t->getSpectra();} |
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135 | static Matrix<uChar> GetFlag(const TableType *t) {return t->getFlagtra();} |
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136 | }; |
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137 | |
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138 | class TsysTableAccessor : public AccessorInterface<TsysTableAccessor, asap::STCalTsysTable> |
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139 | { |
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140 | public: |
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141 | static Vector<Double> GetTime(const TableType *t) {return t->getTime();} |
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142 | static Matrix<Float> GetData(const TableType *t) {return t->getTsys();} |
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143 | static Matrix<uChar> GetFlag(const TableType *t) {return t->getFlagtra();} |
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144 | }; |
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145 | |
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146 | inline uInt setupWorkingData(const uInt n, const Double *xin, const Float *yin, |
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147 | const uChar *f, Double *xout, Float *yout) |
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148 | { |
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149 | uInt nValid = 0; |
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150 | for (uInt i = 0; i < n; ++i) { |
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151 | if (f[i] == 0) { |
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152 | xout[nValid] = xin[i]; |
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153 | yout[nValid] = yin[i]; |
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154 | nValid++; |
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155 | } |
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156 | } |
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157 | return nValid; |
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158 | } |
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159 | |
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160 | template<class InterpolationHelperImpl> |
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161 | class InterpolationHelperInterface |
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162 | { |
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163 | public: |
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164 | static void Interpolate(const Double xref, const uInt nx, const uInt ny, |
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165 | Double *xin, Float *yin, uChar *fin, |
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166 | asap::Interpolator1D<Double, Float> *interpolator, |
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167 | Double *xwork, Float *ywork, |
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168 | Float *yout, uChar *fout) |
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169 | { |
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170 | for (uInt i = 0; i < ny; i++) { |
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171 | Float *tmpY = &(yin[i * nx]); |
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172 | uInt wnrow = setupWorkingData(nx, xin, tmpY, &(fin[i * nx]), xwork, ywork); |
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173 | if (wnrow > 0) { |
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174 | // any valid reference data |
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175 | InterpolationHelperImpl::ProcessValid(xref, i, interpolator, |
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176 | xwork, ywork, wnrow, |
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177 | yout, fout); |
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178 | } |
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179 | else { |
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180 | // no valid reference data |
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181 | InterpolationHelperImpl::ProcessInvalid(xref, i, interpolator, |
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182 | xin, tmpY, nx, |
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183 | yout, fout); |
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184 | } |
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185 | } |
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186 | } |
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187 | }; |
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188 | |
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189 | class SkyInterpolationHelper : public InterpolationHelperInterface<SkyInterpolationHelper> |
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190 | { |
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191 | public: |
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192 | static void ProcessValid(const Double xref, const uInt index, |
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193 | asap::Interpolator1D<Double, Float> *interpolator, |
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194 | Double *xwork, Float *ywork, |
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195 | const uInt wnrow, Float *yout, uChar */*fout*/) |
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196 | { |
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197 | interpolator->setData(xwork, ywork, wnrow); |
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198 | yout[index] = interpolator->interpolate(xref); |
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199 | } |
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200 | static void ProcessInvalid(const Double xref, const uInt index, |
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201 | asap::Interpolator1D<Double, Float> *interpolator, |
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202 | Double *xwork, Float *ywork, |
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203 | const uInt wnrow, Float *yout, uChar *fout) |
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204 | { |
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205 | // interpolate data regardless of flag |
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206 | ProcessValid(xref, index, interpolator, xwork, ywork, wnrow, yout, fout); |
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207 | // flag this channel for calibrated data |
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208 | fout[index] = 1 << 7; // user flag |
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209 | } |
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210 | }; |
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211 | |
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212 | class TsysInterpolationHelper : public InterpolationHelperInterface<TsysInterpolationHelper> |
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213 | { |
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214 | public: |
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215 | static void ProcessValid(const Double xref, const uInt index, |
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216 | asap::Interpolator1D<Double, Float> *interpolator, |
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217 | Double *xwork, Float *ywork, |
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218 | const uInt wnrow, Float *yout, uChar *fout) |
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219 | { |
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220 | interpolator->setData(xwork, ywork, wnrow); |
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221 | yout[index] = interpolator->interpolate(xref); |
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222 | fout[index] = 0; |
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223 | } |
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224 | static void ProcessInvalid(const Double /*xref*/, const uInt index, |
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225 | asap::Interpolator1D<Double, Float> */*interpolator*/, |
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226 | Double */*xwork*/, Float */*ywork*/, |
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227 | const uInt /*wnrow*/, Float */*yout*/, uChar *fout) |
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228 | { |
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229 | fout[index] = 1 << 7; // user flag |
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230 | } |
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231 | }; |
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232 | |
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233 | inline void flagSpectrum(uInt &flagrow, Vector<uChar> &flagchan) { |
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234 | flagrow = 1; |
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235 | flagchan = (uChar)(1 << 7); |
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236 | } |
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237 | |
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238 | inline void flagSpectra(Table &tab, const Vector<uInt> &rows) { |
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239 | //os_ << LogIO::WARN << "No valid sky data in sky caltable. Completely flag Beam " << beamno << " Spw " << ifno << " Pol " << polno << LogIO::POST; |
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240 | // Given sky tables are all empty |
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241 | // So, flag all data |
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242 | //Table tab = work_->table(); |
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243 | ArrayColumn<uChar> flCol(tab, "FLAGTRA"); |
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244 | ScalarColumn<uInt> frCol(tab, "FLAGROW"); |
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245 | Vector<uChar> flag; |
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246 | uInt flagrow; |
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247 | for (uInt i = 0; i < rows.nelements(); i++) { |
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248 | uInt irow = rows[i]; |
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249 | flCol.get(irow, flag); |
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250 | frCol.get(irow, flagrow); |
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251 | flagSpectrum(flagrow, flag); |
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252 | //flag = (uChar)(1 << 7); |
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253 | flCol.put(irow, flag); |
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254 | frCol.put(irow, flagrow); |
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255 | } |
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256 | } |
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257 | |
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258 | } |
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259 | |
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260 | namespace asap { |
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261 | STApplyCal::STApplyCal() |
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262 | { |
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263 | init(); |
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264 | } |
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265 | |
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266 | STApplyCal::STApplyCal(CountedPtr<Scantable> target) |
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267 | : target_(target) |
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268 | { |
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269 | init(); |
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270 | } |
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271 | |
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272 | STApplyCal::~STApplyCal() |
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273 | { |
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274 | } |
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275 | |
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276 | void STApplyCal::init() |
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277 | { |
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278 | caltype_ = STCalEnum::NoType; |
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279 | doTsys_ = False; |
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280 | iTime_ = STCalEnum::DefaultInterpolation; |
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281 | iFreq_ = STCalEnum::DefaultInterpolation; |
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282 | } |
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283 | |
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284 | void STApplyCal::reset() |
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285 | { |
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286 | // call init |
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287 | init(); |
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288 | |
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289 | // clear apply tables |
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290 | // do not delete object here |
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291 | skytable_.resize(0); |
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292 | tsystable_.resize(0); |
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293 | |
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294 | // clear mapping for Tsys transfer |
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295 | spwmap_.clear(); |
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296 | |
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297 | // reset selector |
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298 | sel_.reset(); |
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299 | |
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300 | // delete interpolators |
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301 | interpolatorT_ = 0; |
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302 | interpolatorS_ = 0; |
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303 | interpolatorF_ = 0; |
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304 | |
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305 | // clear working scantable |
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306 | work_ = 0; |
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307 | |
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308 | // clear calibrator |
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309 | calibrator_ = 0; |
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310 | } |
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311 | |
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312 | void STApplyCal::completeReset() |
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313 | { |
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314 | reset(); |
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315 | target_ = 0; |
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316 | } |
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317 | |
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318 | void STApplyCal::setTarget(CountedPtr<Scantable> target) |
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319 | { |
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320 | target_ = target; |
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321 | } |
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322 | |
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323 | void STApplyCal::setTarget(const String &name) |
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324 | { |
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325 | // always create PlainTable |
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326 | target_ = new Scantable(name, Table::Plain); |
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327 | } |
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328 | |
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329 | void STApplyCal::push(STCalSkyTable *table) |
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330 | { |
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331 | os_.origin(LogOrigin("STApplyCal","push",WHERE)); |
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332 | skytable_.push_back(table); |
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333 | STCalEnum::CalType caltype = STApplyTable::getCalType(table); |
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334 | os_ << "caltype=" << caltype << LogIO::POST; |
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335 | if (caltype_ == STCalEnum::NoType || |
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336 | caltype_ == STCalEnum::DefaultType || |
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337 | caltype_ == STCalEnum::CalTsys) { |
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338 | caltype_ = caltype; |
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339 | } |
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340 | os_ << "caltype_=" << caltype_ << LogIO::POST; |
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341 | } |
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342 | |
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343 | void STApplyCal::push(STCalTsysTable *table) |
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344 | { |
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345 | tsystable_.push_back(table); |
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346 | doTsys_ = True; |
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347 | } |
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348 | |
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349 | void STApplyCal::setTimeInterpolation(STCalEnum::InterpolationType itype, Int order) |
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350 | { |
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351 | iTime_ = itype; |
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352 | order_ = order; |
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353 | } |
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354 | |
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355 | void STApplyCal::setFrequencyInterpolation(STCalEnum::InterpolationType itype, Int order) |
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356 | { |
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357 | iFreq_ = itype; |
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358 | order_ = order; |
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359 | } |
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360 | |
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361 | void STApplyCal::setTsysTransfer(uInt from, Vector<uInt> to) |
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362 | { |
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363 | os_.origin(LogOrigin("STApplyCal","setTsysTransfer",WHERE)); |
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364 | os_ << "from=" << from << ", to=" << to << LogIO::POST; |
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365 | map<uInt, Vector<uInt> >::iterator i = spwmap_.find(from); |
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366 | if (i == spwmap_.end()) { |
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367 | spwmap_.insert(pair<uInt, Vector<uInt> >(from, to)); |
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368 | } |
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369 | else { |
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370 | Vector<uInt> toNew = i->second; |
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371 | spwmap_.erase(i); |
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372 | uInt k = toNew.nelements(); |
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373 | toNew.resize(k+to.nelements(), True); |
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374 | for (uInt i = 0; i < to.nelements(); i++) |
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375 | toNew[i+k] = to[i]; |
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376 | spwmap_.insert(pair<uInt, Vector<uInt> >(from, toNew)); |
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377 | } |
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378 | } |
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379 | |
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380 | void STApplyCal::apply(Bool insitu, Bool filltsys) |
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381 | { |
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382 | os_.origin(LogOrigin("STApplyCal","apply",WHERE)); |
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383 | |
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384 | //assert(!target_.null()); |
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385 | assert_<AipsError>(!target_.null(),"You have to set target scantable first."); |
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386 | |
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387 | // calibrator |
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388 | if (caltype_ == STCalEnum::CalPSAlma) |
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389 | calibrator_ = new PSAlmaCalibrator(); |
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390 | |
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391 | // interpolator |
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392 | initInterpolator(); |
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393 | |
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394 | // select data |
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395 | sel_.reset(); |
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396 | sel_ = target_->getSelection(); |
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397 | if (caltype_ == STCalEnum::CalPSAlma || |
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398 | caltype_ == STCalEnum::CalPS) { |
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399 | sel_.setTypes(vector<int>(1,(int)SrcType::PSON)); |
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400 | } |
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401 | target_->setSelection(sel_); |
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402 | |
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403 | //os_ << "sel_.print()=" << sel_.print() << LogIO::POST; |
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404 | |
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405 | // working data |
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406 | if (insitu) { |
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407 | os_.origin(LogOrigin("STApplyCal","apply",WHERE)); |
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408 | os_ << "Overwrite input scantable" << LogIO::POST; |
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409 | work_ = target_; |
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410 | } |
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411 | else { |
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412 | os_.origin(LogOrigin("STApplyCal","apply",WHERE)); |
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413 | os_ << "Create output scantable from input" << LogIO::POST; |
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414 | work_ = new Scantable(*target_, false); |
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415 | } |
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416 | |
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417 | //os_ << "work_->nrow()=" << work_->nrow() << LogIO::POST; |
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418 | |
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419 | // list of apply tables for sky calibration |
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420 | Vector<uInt> skycalList(skytable_.size()); |
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421 | uInt numSkyCal = 0; |
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422 | |
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423 | // list of apply tables for Tsys calibration |
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424 | for (uInt i = 0 ; i < skytable_.size(); i++) { |
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425 | STCalEnum::CalType caltype = STApplyTable::getCalType(skytable_[i]); |
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426 | if (caltype == caltype_) { |
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427 | skycalList[numSkyCal] = i; |
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428 | numSkyCal++; |
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429 | } |
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430 | } |
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431 | skycalList.resize(numSkyCal, True); |
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432 | |
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433 | |
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434 | vector<string> cols( 3 ) ; |
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435 | cols[0] = "BEAMNO" ; |
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436 | cols[1] = "POLNO" ; |
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437 | cols[2] = "IFNO" ; |
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438 | CountedPtr<STIdxIter2> iter = new STIdxIter2(work_, cols) ; |
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439 | double start = mathutil::gettimeofday_sec(); |
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440 | os_ << LogIO::DEBUGGING << "start iterative doapply: " << start << LogIO::POST; |
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441 | while (!iter->pastEnd()) { |
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442 | Record ids = iter->currentValue(); |
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443 | Vector<uInt> rows = iter->getRows(SHARE); |
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444 | if (rows.nelements() > 0) |
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445 | doapply(ids.asuInt("BEAMNO"), ids.asuInt("IFNO"), ids.asuInt("POLNO"), rows, skycalList, filltsys); |
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446 | iter->next(); |
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447 | } |
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448 | double end = mathutil::gettimeofday_sec(); |
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449 | os_ << LogIO::DEBUGGING << "end iterative doapply: " << end << LogIO::POST; |
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450 | os_ << LogIO::DEBUGGING << "elapsed time for doapply: " << end - start << " sec" << LogIO::POST; |
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451 | |
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452 | target_->unsetSelection(); |
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453 | } |
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454 | |
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455 | void STApplyCal::doapply(uInt beamno, uInt ifno, uInt polno, |
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456 | Vector<uInt> &rows, |
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457 | Vector<uInt> &skylist, |
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458 | Bool filltsys) |
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459 | { |
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460 | os_.origin(LogOrigin("STApplyCal","doapply",WHERE)); |
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461 | Bool doTsys = doTsys_; |
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462 | |
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463 | STSelector sel; |
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464 | vector<int> id(1); |
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465 | id[0] = beamno; |
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466 | sel.setBeams(id); |
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467 | id[0] = ifno; |
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468 | sel.setIFs(id); |
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469 | id[0] = polno; |
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470 | sel.setPolarizations(id); |
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471 | |
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472 | // apply selection to apply tables |
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473 | uInt nrowSkyTotal = 0; |
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474 | uInt nrowTsysTotal = 0; |
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475 | for (uInt i = 0; i < skylist.nelements(); i++) { |
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476 | skytable_[skylist[i]]->setSelection(sel); |
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477 | nrowSkyTotal += skytable_[skylist[i]]->nrow(); |
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478 | os_ << "nrowSkyTotal=" << nrowSkyTotal << LogIO::POST; |
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479 | } |
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480 | |
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481 | // Skip IFNO without sky data |
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482 | if (nrowSkyTotal == 0) { |
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483 | if (skytable_.size() > 0) { |
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484 | os_ << LogIO::WARN << "No data in sky caltable. Completely flag Beam " << beamno << " Spw " << ifno << " Pol " << polno << LogIO::POST; |
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485 | // Given sky tables are all empty |
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486 | // So, flag all data |
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487 | flagSpectra(work_->table(), rows); |
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488 | } |
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489 | return; |
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490 | } |
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491 | |
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492 | uInt nchanTsys = 0; |
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493 | Vector<Double> ftsys; |
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494 | uInt tsysifno = getIFForTsys(ifno); |
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495 | Bool onlyInvalidTsys = False; |
---|
496 | os_ << "tsysifno=" << (Int)tsysifno << LogIO::POST; |
---|
497 | if (tsystable_.size() == 0) { |
---|
498 | os_.origin(LogOrigin("STApplyTable", "doapply", WHERE)); |
---|
499 | os_ << "No Tsys tables are given. Skip Tsys calibratoin." << LogIO::POST; |
---|
500 | doTsys = False; |
---|
501 | } |
---|
502 | else if (tsysifno == (uInt)-1) { |
---|
503 | os_.origin(LogOrigin("STApplyTable", "doapply", WHERE)); |
---|
504 | os_ << "No corresponding Tsys for IFNO " << ifno << ". Skip Tsys calibration" << LogIO::POST; |
---|
505 | doTsys = False; |
---|
506 | } |
---|
507 | else { |
---|
508 | id[0] = (int)tsysifno; |
---|
509 | sel.setIFs(id); |
---|
510 | for (uInt i = 0; i < tsystable_.size() ; i++) { |
---|
511 | tsystable_[i]->setSelection(sel); |
---|
512 | uInt nrowThisTsys = tsystable_[i]->nrow(); |
---|
513 | nrowTsysTotal += nrowThisTsys; |
---|
514 | if (nrowThisTsys > 0 && nchanTsys == 0) { |
---|
515 | nchanTsys = tsystable_[i]->nchan(tsysifno); |
---|
516 | ftsys = tsystable_[i]->getBaseFrequency(0); |
---|
517 | } |
---|
518 | } |
---|
519 | if (nrowTsysTotal == 0) { |
---|
520 | os_ << "No valid Tsys measurement. for Beam " << beamno << " Spw " << ifno << " Pol " << polno << ". Skip Tsys calibration." << LogIO::POST; |
---|
521 | doTsys = False; |
---|
522 | onlyInvalidTsys = True; |
---|
523 | } |
---|
524 | } |
---|
525 | |
---|
526 | uInt nchanSp = skytable_[skylist[0]]->nchan(ifno); |
---|
527 | uInt nrowSky = nrowSkyTotal; |
---|
528 | Vector<Double> timeSky; |
---|
529 | Matrix<Float> spoff; |
---|
530 | Matrix<uChar> flagoff; |
---|
531 | SkyTableAccessor::GetSortedData(skytable_, skylist, |
---|
532 | nrowSkyTotal, nchanSp, |
---|
533 | timeSky, spoff, flagoff); |
---|
534 | if (allNE(flagoff, (uChar)0)) { |
---|
535 | os_ << LogIO::WARN << "No valid sky data in sky caltable. Completely flag Beam " << beamno << " Spw " << ifno << " Pol " << polno << LogIO::POST; |
---|
536 | // Given sky tables are all invalid |
---|
537 | // So, flag all data |
---|
538 | flagSpectra(work_->table(), rows); |
---|
539 | } |
---|
540 | nrowSky = timeSky.nelements(); |
---|
541 | |
---|
542 | uInt nrowTsys = nrowTsysTotal; |
---|
543 | Vector<Double> timeTsys; |
---|
544 | Matrix<Float> tsys; |
---|
545 | Matrix<uChar> flagtsys; |
---|
546 | if (doTsys) { |
---|
547 | //os_ << "doTsys" << LogIO::POST; |
---|
548 | Vector<uInt> tsyslist(tsystable_.size()); |
---|
549 | indgen(tsyslist); |
---|
550 | TsysTableAccessor::GetSortedData(tsystable_, tsyslist, |
---|
551 | nrowTsysTotal, nchanTsys, |
---|
552 | timeTsys, tsys, flagtsys); |
---|
553 | nrowTsys = timeTsys.nelements(); |
---|
554 | |
---|
555 | if (allNE(flagtsys, (uChar)0)) { |
---|
556 | os_ << LogIO::WARN << "No valid Tsys measurement for Beam " << beamno << " Spw " << ifno << " Pol " << polno << ". Skip Tsys calibration." << LogIO::POST; |
---|
557 | doTsys = False; |
---|
558 | onlyInvalidTsys = True; |
---|
559 | } |
---|
560 | } |
---|
561 | |
---|
562 | Table tab = work_->table(); |
---|
563 | ArrayColumn<Float> spCol(tab, "SPECTRA"); |
---|
564 | ArrayColumn<uChar> flCol(tab, "FLAGTRA"); |
---|
565 | ArrayColumn<Float> tsysCol(tab, "TSYS"); |
---|
566 | ScalarColumn<Double> timeCol(tab, "TIME"); |
---|
567 | ScalarColumn<uInt> frCol(tab, "FLAGROW"); |
---|
568 | |
---|
569 | // Array for scaling factor (aka Tsys) |
---|
570 | Vector<Float> iTsys(IPosition(1, nchanSp), new Float[nchanSp], TAKE_OVER); |
---|
571 | // Array for Tsys interpolation |
---|
572 | // This is empty array and is never referenced if doTsys == false |
---|
573 | // (i.e. nchanTsys == 0) |
---|
574 | Vector<Float> iTsysT(IPosition(1, nchanTsys), new Float[nchanTsys], TAKE_OVER); |
---|
575 | |
---|
576 | // Array for interpolated off spectrum |
---|
577 | Vector<Float> iOff(IPosition(1, nchanSp), new Float[nchanSp], TAKE_OVER); |
---|
578 | |
---|
579 | // working array for interpolation with flags |
---|
580 | uInt arraySize = max(max(nrowTsys, nchanTsys), nrowSky); |
---|
581 | Vector<Double> xwork(IPosition(1, arraySize), new Double[arraySize], TAKE_OVER); |
---|
582 | Vector<Float> ywork(IPosition(1, arraySize), new Float[arraySize], TAKE_OVER); |
---|
583 | Vector<uChar> fwork(IPosition(1, nchanTsys), new uChar[nchanTsys], TAKE_OVER); |
---|
584 | |
---|
585 | // data array |
---|
586 | Vector<Float> on(IPosition(1, nchanSp), new Float[nchanSp], TAKE_OVER); |
---|
587 | Vector<uChar> flag(on.shape(), new uChar[on.shape().product()], TAKE_OVER); |
---|
588 | |
---|
589 | for (uInt i = 0; i < rows.nelements(); i++) { |
---|
590 | //os_ << "start i = " << i << " (row = " << rows[i] << ")" << LogIO::POST; |
---|
591 | uInt irow = rows[i]; |
---|
592 | |
---|
593 | // target spectral data |
---|
594 | spCol.get(irow, on); |
---|
595 | flCol.get(irow, flag); |
---|
596 | uInt flagrow = frCol(irow); |
---|
597 | //os_ << "on=" << on[0] << LogIO::POST; |
---|
598 | calibrator_->setSource(on); |
---|
599 | |
---|
600 | // interpolation |
---|
601 | Double t0 = timeCol(irow); |
---|
602 | Double *xwork_p = xwork.data(); |
---|
603 | Float *ywork_p = ywork.data(); |
---|
604 | SkyInterpolationHelper::Interpolate(t0, nrowSky, nchanSp, |
---|
605 | timeSky.data(), spoff.data(), |
---|
606 | flagoff.data(), &(*interpolatorS_), |
---|
607 | xwork_p, ywork_p, |
---|
608 | iOff.data(), flag.data()); |
---|
609 | calibrator_->setReference(iOff); |
---|
610 | |
---|
611 | if (doTsys) { |
---|
612 | // Tsys correction |
---|
613 | // interpolation on time axis |
---|
614 | TsysInterpolationHelper::Interpolate(t0, nrowTsys, nchanTsys, |
---|
615 | timeTsys.data(), tsys.data(), |
---|
616 | flagtsys.data(), &(*interpolatorT_), |
---|
617 | xwork_p, ywork_p, |
---|
618 | iTsysT.data(), fwork.data()); |
---|
619 | uChar *fwork_p = fwork.data(); |
---|
620 | if (nchanSp == 1) { |
---|
621 | // take average |
---|
622 | iTsys[0] = mean(iTsysT); |
---|
623 | } |
---|
624 | else { |
---|
625 | // interpolation on frequency axis |
---|
626 | Vector<Double> fsp = getBaseFrequency(rows[i]); |
---|
627 | uInt wnchan = setupWorkingData(nchanTsys, ftsys.data(), iTsysT.data(), |
---|
628 | fwork_p, xwork_p, ywork_p); |
---|
629 | assert(wnchan > 0); |
---|
630 | if (wnchan == 0) { |
---|
631 | throw AipsError("No valid Tsys measurements."); |
---|
632 | } |
---|
633 | interpolatorF_->setData(xwork_p, ywork_p, wnchan); |
---|
634 | for (uInt ichan = 0; ichan < nchanSp; ichan++) { |
---|
635 | iTsys[ichan] = interpolatorF_->interpolate(fsp[ichan]); |
---|
636 | } |
---|
637 | } |
---|
638 | } |
---|
639 | else { |
---|
640 | Vector<Float> tsysInRow = tsysCol(irow); |
---|
641 | if (tsysInRow.nelements() == 1) { |
---|
642 | iTsys = tsysInRow[0]; |
---|
643 | } |
---|
644 | else { |
---|
645 | for (uInt ichan = 0; ichan < tsysInRow.nelements(); ++ichan) |
---|
646 | iTsys[ichan] = tsysInRow[ichan]; |
---|
647 | } |
---|
648 | } |
---|
649 | //os_ << "iTsys=" << iTsys[0] << LogIO::POST; |
---|
650 | calibrator_->setScaler(iTsys); |
---|
651 | |
---|
652 | // do calibration |
---|
653 | calibrator_->calibrate(); |
---|
654 | |
---|
655 | // flag spectrum if no valid Tsys measurement available |
---|
656 | if (onlyInvalidTsys) { |
---|
657 | flagSpectrum(flagrow, flag); |
---|
658 | } |
---|
659 | |
---|
660 | // update table |
---|
661 | //os_ << "calibrated=" << calibrator_->getCalibrated()[0] << LogIO::POST; |
---|
662 | spCol.put(irow, calibrator_->getCalibrated()); |
---|
663 | flCol.put(irow, flag); |
---|
664 | frCol.put(irow, flagrow); |
---|
665 | if (filltsys && !onlyInvalidTsys) |
---|
666 | tsysCol.put(irow, iTsys); |
---|
667 | } |
---|
668 | |
---|
669 | |
---|
670 | // reset selection on apply tables |
---|
671 | for (uInt i = 0; i < skylist.nelements(); i++) |
---|
672 | skytable_[i]->unsetSelection(); |
---|
673 | for (uInt i = 0; i < tsystable_.size(); i++) |
---|
674 | tsystable_[i]->unsetSelection(); |
---|
675 | |
---|
676 | |
---|
677 | // reset interpolator |
---|
678 | interpolatorS_->reset(); |
---|
679 | interpolatorF_->reset(); |
---|
680 | interpolatorT_->reset(); |
---|
681 | } |
---|
682 | |
---|
683 | uInt STApplyCal::getIFForTsys(uInt to) |
---|
684 | { |
---|
685 | for (map<casa::uInt, Vector<uInt> >::iterator i = spwmap_.begin(); |
---|
686 | i != spwmap_.end(); i++) { |
---|
687 | Vector<uInt> tolist = i->second; |
---|
688 | os_ << "from=" << i->first << ": tolist=" << tolist << LogIO::POST; |
---|
689 | for (uInt j = 0; j < tolist.nelements(); j++) { |
---|
690 | if (tolist[j] == to) |
---|
691 | return i->first; |
---|
692 | } |
---|
693 | } |
---|
694 | return (uInt)-1; |
---|
695 | } |
---|
696 | |
---|
697 | void STApplyCal::save(const String &name) |
---|
698 | { |
---|
699 | //assert(!work_.null()); |
---|
700 | assert_<AipsError>(!work_.null(),"You have to execute apply method first."); |
---|
701 | |
---|
702 | work_->setSelection(sel_); |
---|
703 | work_->makePersistent(name); |
---|
704 | work_->unsetSelection(); |
---|
705 | } |
---|
706 | |
---|
707 | Vector<Double> STApplyCal::getBaseFrequency(uInt whichrow) |
---|
708 | { |
---|
709 | //assert(whichrow <= (uInt)work_->nrow()); |
---|
710 | assert_<AipsError>(whichrow <= (uInt)work_->nrow(),"row index out of range."); |
---|
711 | ROTableColumn col(work_->table(), "IFNO"); |
---|
712 | uInt ifno = col.asuInt(whichrow); |
---|
713 | col.attach(work_->table(), "FREQ_ID"); |
---|
714 | uInt freqid = col.asuInt(whichrow); |
---|
715 | uInt nc = work_->nchan(ifno); |
---|
716 | STFrequencies ftab = work_->frequencies(); |
---|
717 | Double rp, rf, inc; |
---|
718 | ftab.getEntry(rp, rf, inc, freqid); |
---|
719 | Vector<Double> r(nc); |
---|
720 | indgen(r, rf-rp*inc, inc); |
---|
721 | return r; |
---|
722 | } |
---|
723 | |
---|
724 | void STApplyCal::initInterpolator() |
---|
725 | { |
---|
726 | os_.origin(LogOrigin("STApplyCal","initInterpolator",WHERE)); |
---|
727 | int order = (order_ > 0) ? order_ : 1; |
---|
728 | switch (iTime_) { |
---|
729 | case STCalEnum::NearestInterpolation: |
---|
730 | { |
---|
731 | os_ << "use NearestInterpolator in time axis" << LogIO::POST; |
---|
732 | interpolatorS_ = new NearestInterpolator1D<Double, Float>(); |
---|
733 | interpolatorT_ = new NearestInterpolator1D<Double, Float>(); |
---|
734 | break; |
---|
735 | } |
---|
736 | case STCalEnum::LinearInterpolation: |
---|
737 | { |
---|
738 | os_ << "use BufferedLinearInterpolator in time axis" << LogIO::POST; |
---|
739 | interpolatorS_ = new BufferedLinearInterpolator1D<Double, Float>(); |
---|
740 | interpolatorT_ = new BufferedLinearInterpolator1D<Double, Float>(); |
---|
741 | break; |
---|
742 | } |
---|
743 | case STCalEnum::CubicSplineInterpolation: |
---|
744 | { |
---|
745 | os_ << "use CubicSplineInterpolator in time axis" << LogIO::POST; |
---|
746 | interpolatorS_ = new CubicSplineInterpolator1D<Double, Float>(); |
---|
747 | interpolatorT_ = new CubicSplineInterpolator1D<Double, Float>(); |
---|
748 | break; |
---|
749 | } |
---|
750 | case STCalEnum::PolynomialInterpolation: |
---|
751 | { |
---|
752 | os_ << "use PolynomialInterpolator in time axis" << LogIO::POST; |
---|
753 | if (order == 0) { |
---|
754 | interpolatorS_ = new NearestInterpolator1D<Double, Float>(); |
---|
755 | interpolatorT_ = new NearestInterpolator1D<Double, Float>(); |
---|
756 | } |
---|
757 | else { |
---|
758 | interpolatorS_ = new PolynomialInterpolator1D<Double, Float>(); |
---|
759 | interpolatorT_ = new PolynomialInterpolator1D<Double, Float>(); |
---|
760 | interpolatorS_->setOrder(order); |
---|
761 | interpolatorT_->setOrder(order); |
---|
762 | } |
---|
763 | break; |
---|
764 | } |
---|
765 | default: |
---|
766 | { |
---|
767 | os_ << "use BufferedLinearInterpolator in time axis" << LogIO::POST; |
---|
768 | interpolatorS_ = new BufferedLinearInterpolator1D<Double, Float>(); |
---|
769 | interpolatorT_ = new BufferedLinearInterpolator1D<Double, Float>(); |
---|
770 | break; |
---|
771 | } |
---|
772 | } |
---|
773 | |
---|
774 | switch (iFreq_) { |
---|
775 | case STCalEnum::NearestInterpolation: |
---|
776 | { |
---|
777 | os_ << "use NearestInterpolator in frequency axis" << LogIO::POST; |
---|
778 | interpolatorF_ = new NearestInterpolator1D<Double, Float>(); |
---|
779 | break; |
---|
780 | } |
---|
781 | case STCalEnum::LinearInterpolation: |
---|
782 | { |
---|
783 | os_ << "use BufferedLinearInterpolator in frequency axis" << LogIO::POST; |
---|
784 | interpolatorF_ = new BufferedLinearInterpolator1D<Double, Float>(); |
---|
785 | break; |
---|
786 | } |
---|
787 | case STCalEnum::CubicSplineInterpolation: |
---|
788 | { |
---|
789 | os_ << "use CubicSplineInterpolator in frequency axis" << LogIO::POST; |
---|
790 | interpolatorF_ = new CubicSplineInterpolator1D<Double, Float>(); |
---|
791 | break; |
---|
792 | } |
---|
793 | case STCalEnum::PolynomialInterpolation: |
---|
794 | { |
---|
795 | os_ << "use PolynomialInterpolator in frequency axis" << LogIO::POST; |
---|
796 | if (order == 0) { |
---|
797 | interpolatorF_ = new NearestInterpolator1D<Double, Float>(); |
---|
798 | } |
---|
799 | else { |
---|
800 | interpolatorF_ = new PolynomialInterpolator1D<Double, Float>(); |
---|
801 | interpolatorF_->setOrder(order); |
---|
802 | } |
---|
803 | break; |
---|
804 | } |
---|
805 | default: |
---|
806 | { |
---|
807 | os_ << "use LinearInterpolator in frequency axis" << LogIO::POST; |
---|
808 | interpolatorF_ = new BufferedLinearInterpolator1D<Double, Float>(); |
---|
809 | break; |
---|
810 | } |
---|
811 | } |
---|
812 | } |
---|
813 | |
---|
814 | } |
---|