[2978] | 1 | #include <iostream> |
---|
[2917] | 2 | #include <vector> |
---|
| 3 | |
---|
| 4 | #include <casa/Arrays/Vector.h> |
---|
| 5 | #include <casa/BasicSL/String.h> |
---|
| 6 | #include <casa/Utilities/CountedPtr.h> |
---|
| 7 | |
---|
| 8 | #include "Scantable.h" |
---|
| 9 | #include "STTcal.h" |
---|
| 10 | #include "STIdxIter.h" |
---|
| 11 | #include "STSelector.h" |
---|
| 12 | |
---|
[3106] | 13 | using namespace casacore; |
---|
[2917] | 14 | using namespace asap; |
---|
| 15 | |
---|
| 16 | namespace { |
---|
| 17 | // Interpolation Helper |
---|
| 18 | class TcalData |
---|
| 19 | { |
---|
| 20 | public: |
---|
| 21 | TcalData(CountedPtr<Scantable> s) |
---|
| 22 | : table_(s) |
---|
| 23 | {} |
---|
| 24 | ~TcalData() {} |
---|
| 25 | const String method_name() const {return "getTcalFromTime";} |
---|
| 26 | uInt nrow() const {return table_->nrow();} |
---|
| 27 | Vector<Float> GetEntry(int idx) const |
---|
| 28 | { |
---|
| 29 | String time; |
---|
| 30 | uInt tcalid = table_->getTcalId(idx); |
---|
| 31 | Vector<Float> return_value; |
---|
| 32 | table_->tcal().getEntry(time, return_value, tcalid); |
---|
| 33 | return return_value; |
---|
| 34 | } |
---|
| 35 | private: |
---|
| 36 | CountedPtr<Scantable> table_; |
---|
| 37 | }; |
---|
| 38 | |
---|
| 39 | class TsysData |
---|
| 40 | { |
---|
| 41 | public: |
---|
| 42 | TsysData(CountedPtr<Scantable> s) |
---|
| 43 | : tsyscolumn_(s->table(), "TSYS") |
---|
| 44 | {} |
---|
| 45 | ~TsysData() {} |
---|
| 46 | const String method_name() const {return "getTsysFromTime";} |
---|
| 47 | uInt nrow() const {return tsyscolumn_.nrow();} |
---|
[2919] | 48 | Vector<Float> GetEntry(int idx) const {return tsyscolumn_(idx);} |
---|
[2917] | 49 | private: |
---|
| 50 | ROArrayColumn<Float> tsyscolumn_; |
---|
| 51 | }; |
---|
| 52 | |
---|
| 53 | class SpectralData |
---|
| 54 | { |
---|
| 55 | public: |
---|
| 56 | SpectralData(Matrix<Float> s) |
---|
| 57 | : data_(s) |
---|
| 58 | {} |
---|
| 59 | ~SpectralData() {} |
---|
| 60 | const String method_name() const {return "getSpectraFromTime";} |
---|
| 61 | uInt nrow() const {return data_.ncolumn();} |
---|
[2919] | 62 | Vector<Float> GetEntry(int idx) const {return data_.column(idx);} |
---|
[2917] | 63 | private: |
---|
| 64 | Matrix<Float> data_; |
---|
| 65 | }; |
---|
| 66 | |
---|
| 67 | |
---|
| 68 | vector<int> getRowIdFromTime(double reftime, const Vector<Double> &t) |
---|
| 69 | { |
---|
| 70 | // double reft = reftime ; |
---|
| 71 | double dtmin = 1.0e100 ; |
---|
| 72 | double dtmax = -1.0e100 ; |
---|
| 73 | // vector<double> dt ; |
---|
| 74 | int just_before = -1 ; |
---|
| 75 | int just_after = -1 ; |
---|
| 76 | Vector<Double> dt = t - reftime ; |
---|
| 77 | for ( unsigned int i = 0 ; i < dt.size() ; i++ ) { |
---|
| 78 | if ( dt[i] > 0.0 ) { |
---|
| 79 | // after reftime |
---|
| 80 | if ( dt[i] < dtmin ) { |
---|
| 81 | just_after = i ; |
---|
| 82 | dtmin = dt[i] ; |
---|
| 83 | } |
---|
| 84 | } |
---|
| 85 | else if ( dt[i] < 0.0 ) { |
---|
| 86 | // before reftime |
---|
| 87 | if ( dt[i] > dtmax ) { |
---|
| 88 | just_before = i ; |
---|
| 89 | dtmax = dt[i] ; |
---|
| 90 | } |
---|
| 91 | } |
---|
| 92 | else { |
---|
| 93 | // just a reftime |
---|
| 94 | just_before = i ; |
---|
| 95 | just_after = i ; |
---|
| 96 | dtmax = 0 ; |
---|
| 97 | dtmin = 0 ; |
---|
| 98 | break ; |
---|
| 99 | } |
---|
| 100 | } |
---|
| 101 | |
---|
| 102 | vector<int> v(2) ; |
---|
| 103 | v[0] = just_before ; |
---|
| 104 | v[1] = just_after ; |
---|
| 105 | |
---|
| 106 | return v ; |
---|
| 107 | } |
---|
| 108 | |
---|
[2978] | 109 | vector<int> getRowIdFromTime2(double reftime, |
---|
| 110 | const Vector<Double> &t, |
---|
| 111 | const Vector<uInt> &flagrow, |
---|
| 112 | const Matrix<uChar> &flagtra) |
---|
| 113 | { |
---|
| 114 | unsigned int nchan = flagtra[0].nelements(); |
---|
| 115 | vector<int> v(2*nchan); |
---|
| 116 | |
---|
| 117 | for (unsigned int j = 0; j < nchan; ++j) { |
---|
| 118 | // double reft = reftime ; |
---|
| 119 | double dtmin = 1.0e100 ; |
---|
| 120 | double dtmax = -1.0e100 ; |
---|
| 121 | // vector<double> dt ; |
---|
| 122 | int just_before = -1 ; |
---|
| 123 | int just_after = -1 ; |
---|
| 124 | Vector<Double> dt = t - reftime ; |
---|
| 125 | for ( unsigned int i = 0 ; i < dt.size() ; i++ ) { |
---|
| 126 | if ( flagrow[i] > 0 ) continue; |
---|
| 127 | if ( flagtra.column(i)[j] == 1 << 7) continue; |
---|
| 128 | |
---|
| 129 | if ( dt[i] > 0.0 ) { |
---|
| 130 | // after reftime |
---|
| 131 | if ( dt[i] < dtmin ) { |
---|
| 132 | just_after = i ; |
---|
| 133 | dtmin = dt[i] ; |
---|
| 134 | } |
---|
| 135 | } |
---|
| 136 | else if ( dt[i] < 0.0 ) { |
---|
| 137 | // before reftime |
---|
| 138 | if ( dt[i] > dtmax ) { |
---|
| 139 | just_before = i ; |
---|
| 140 | dtmax = dt[i] ; |
---|
| 141 | } |
---|
| 142 | } |
---|
| 143 | else { |
---|
| 144 | // just a reftime |
---|
| 145 | just_before = i ; |
---|
| 146 | just_after = i ; |
---|
| 147 | dtmax = 0 ; |
---|
| 148 | dtmin = 0 ; |
---|
| 149 | break ; |
---|
| 150 | } |
---|
| 151 | } |
---|
| 152 | |
---|
| 153 | v[j*2] = just_before ; |
---|
| 154 | v[j*2+1] = just_after ; |
---|
| 155 | } |
---|
| 156 | |
---|
| 157 | return v ; |
---|
| 158 | } |
---|
| 159 | |
---|
[2917] | 160 | template<class T> |
---|
| 161 | class SimpleInterpolationHelper |
---|
| 162 | { |
---|
| 163 | public: |
---|
| 164 | static Vector<Float> GetFromTime(double reftime, |
---|
| 165 | const Vector<Double> &timeVec, |
---|
| 166 | const vector<int> &idx, |
---|
| 167 | const T &data, |
---|
| 168 | const string mode) |
---|
| 169 | { |
---|
[2978] | 170 | Vector<Float> return_value(idx.size()/2); |
---|
[2917] | 171 | LogIO os_; |
---|
| 172 | LogIO os( LogOrigin( "STMath", data.method_name(), WHERE ) ) ; |
---|
| 173 | if ( data.nrow() == 0 ) { |
---|
| 174 | os << LogIO::SEVERE << "No row in the input scantable. Return empty tcal." << LogIO::POST ; |
---|
| 175 | } |
---|
| 176 | else if ( data.nrow() == 1 ) { |
---|
| 177 | return_value = data.GetEntry(0); |
---|
| 178 | } |
---|
| 179 | else { |
---|
[2978] | 180 | for (unsigned int i = 0; i < idx.size()/2; ++i) { |
---|
| 181 | unsigned int idx0 = 2*i; |
---|
| 182 | unsigned int idx1 = 2*i + 1; |
---|
| 183 | //no off data available. calibration impossible. |
---|
| 184 | if ( ( idx[idx0] == -1 ) && ( idx[idx1] == -1 ) ) continue; |
---|
| 185 | |
---|
| 186 | if ( mode == "before" ) { |
---|
| 187 | int id = -1 ; |
---|
| 188 | if ( idx[idx0] != -1 ) { |
---|
| 189 | id = idx[idx0] ; |
---|
| 190 | } |
---|
| 191 | else if ( idx[idx1] != -1 ) { |
---|
| 192 | os << LogIO::WARN << "Failed to find a scan before reftime. return a spectrum just after the reftime." << LogIO::POST ; |
---|
| 193 | id = idx[idx1] ; |
---|
| 194 | } |
---|
[2917] | 195 | |
---|
[2978] | 196 | return_value[i] = data.GetEntry(id)[i]; |
---|
| 197 | } |
---|
| 198 | else if ( mode == "after" ) { |
---|
| 199 | int id = -1 ; |
---|
| 200 | if ( idx[idx1] != -1 ) { |
---|
| 201 | id = idx[idx1] ; |
---|
| 202 | } |
---|
| 203 | else if ( idx[idx0] != -1 ) { |
---|
| 204 | os << LogIO::WARN << "Failed to find a scan after reftime. return a spectrum just before the reftime." << LogIO::POST ; |
---|
| 205 | id = idx[idx1] ; |
---|
| 206 | } |
---|
[2917] | 207 | |
---|
[2978] | 208 | return_value[i] = data.GetEntry(id)[i]; |
---|
| 209 | } |
---|
| 210 | else if ( mode == "nearest" ) { |
---|
| 211 | int id = -1 ; |
---|
| 212 | if ( idx[idx0] == -1 ) { |
---|
| 213 | id = idx[idx1] ; |
---|
[2917] | 214 | } |
---|
[2978] | 215 | else if ( idx[idx1] == -1 ) { |
---|
| 216 | id = idx[idx0] ; |
---|
| 217 | } |
---|
| 218 | else if ( idx[idx0] == idx[idx1] ) { |
---|
| 219 | id = idx[idx0] ; |
---|
| 220 | } |
---|
[2917] | 221 | else { |
---|
[2978] | 222 | double t0 = timeVec[idx[idx0]] ; |
---|
| 223 | double t1 = timeVec[idx[idx1]] ; |
---|
| 224 | if ( abs( t0 - reftime ) > abs( t1 - reftime ) ) { |
---|
| 225 | id = idx[idx1] ; |
---|
| 226 | } |
---|
| 227 | else { |
---|
| 228 | id = idx[idx0] ; |
---|
| 229 | } |
---|
[2917] | 230 | } |
---|
[2978] | 231 | return_value[i] = data.GetEntry(id)[i]; |
---|
| 232 | } |
---|
| 233 | else if ( mode == "linear" ) { |
---|
| 234 | if ( idx[idx0] == -1 ) { |
---|
| 235 | // use after |
---|
| 236 | os << LogIO::WARN << "Failed to interpolate. return a spectrum just after the reftime." << LogIO::POST ; |
---|
| 237 | int id = idx[idx1] ; |
---|
| 238 | return_value[i] = data.GetEntry(id)[i]; |
---|
[2917] | 239 | } |
---|
[2978] | 240 | else if ( idx[idx1] == -1 ) { |
---|
| 241 | // use before |
---|
| 242 | os << LogIO::WARN << "Failed to interpolate. return a spectrum just before the reftime." << LogIO::POST ; |
---|
| 243 | int id = idx[idx0] ; |
---|
| 244 | return_value[i] = data.GetEntry(id)[i]; |
---|
| 245 | } |
---|
| 246 | else if ( idx[idx0] == idx[idx1] ) { |
---|
| 247 | // use before |
---|
| 248 | //os << "No need to interporate." << LogIO::POST ; |
---|
| 249 | int id = idx[idx0] ; |
---|
| 250 | return_value[i] = data.GetEntry(id)[i]; |
---|
| 251 | } |
---|
| 252 | else { |
---|
| 253 | // do interpolation |
---|
| 254 | double t0 = timeVec[idx[idx0]] ; |
---|
| 255 | double t1 = timeVec[idx[idx1]] ; |
---|
| 256 | Vector<Float> value0 = data.GetEntry(idx[idx0]); |
---|
| 257 | Vector<Float> value1 = data.GetEntry(idx[idx1]); |
---|
| 258 | double tfactor = (reftime - t0) / (t1 - t0) ; |
---|
| 259 | return_value[i] = ( value1[i] - value0[i] ) * tfactor + value0[i] ; |
---|
| 260 | } |
---|
| 261 | } |
---|
| 262 | else { |
---|
| 263 | os << LogIO::SEVERE << "Unknown mode" << LogIO::POST ; |
---|
| 264 | } |
---|
[2917] | 265 | } |
---|
| 266 | } |
---|
| 267 | return return_value ; |
---|
| 268 | } |
---|
| 269 | }; |
---|
| 270 | |
---|
[2919] | 271 | // Calibration Helper |
---|
| 272 | class CalibrationHelper |
---|
| 273 | { |
---|
| 274 | public: |
---|
| 275 | static void CalibrateALMA( CountedPtr<Scantable>& out, |
---|
| 276 | const CountedPtr<Scantable>& on, |
---|
| 277 | const CountedPtr<Scantable>& off, |
---|
| 278 | const Vector<uInt>& rows ) |
---|
| 279 | { |
---|
| 280 | // 2012/05/22 TN |
---|
| 281 | // Assume that out has empty SPECTRA column |
---|
| 282 | |
---|
| 283 | // if rows is empty, just return |
---|
| 284 | if ( rows.nelements() == 0 ) |
---|
| 285 | return ; |
---|
| 286 | |
---|
| 287 | ROArrayColumn<Float> in_spectra_column(on->table(), "SPECTRA"); |
---|
| 288 | ROArrayColumn<Float> in_tsys_column(on->table(), "TSYS"); |
---|
| 289 | ROArrayColumn<uChar> in_flagtra_column(on->table(), "FLAGTRA"); |
---|
| 290 | ArrayColumn<Float> out_spectra_column(out->table(), "SPECTRA"); |
---|
| 291 | ArrayColumn<uChar> out_flagtra_column(out->table(), "FLAGTRA"); |
---|
| 292 | |
---|
| 293 | Vector<Double> timeVec = GetScalarColumn<Double>(off->table(), "TIME"); |
---|
| 294 | Vector<Double> refTimeVec = GetScalarColumn<Double>(on->table(), "TIME"); |
---|
[2978] | 295 | Vector<uInt> flagrowVec = GetScalarColumn<uInt>(off->table(), "FLAGROW"); |
---|
| 296 | Vector<uInt> refFlagrowVec = GetScalarColumn<uInt>(on->table(), "FLAGROW"); |
---|
| 297 | Matrix<uChar> flagtraMtx = GetArrayColumn<uChar>(off->table(), "FLAGTRA"); |
---|
[2919] | 298 | SpectralData offspectra(Matrix<Float>(GetArrayColumn<Float>(off->table(), "SPECTRA"))); |
---|
| 299 | unsigned int spsize = on->nchan( on->getIF(rows[0]) ) ; |
---|
[2978] | 300 | vector<int> ids( 2 * spsize ) ; |
---|
| 301 | |
---|
| 302 | for ( unsigned int irow = 0 ; irow < rows.nelements() ; irow++ ) { |
---|
[2919] | 303 | uInt row = rows[irow]; |
---|
| 304 | double reftime = refTimeVec[row]; |
---|
[2978] | 305 | ids = getRowIdFromTime2( reftime, timeVec, flagrowVec, flagtraMtx ) ; |
---|
[2919] | 306 | Vector<Float> spoff = SimpleInterpolationHelper<SpectralData>::GetFromTime(reftime, timeVec, ids, offspectra, "linear"); |
---|
| 307 | Vector<Float> spec = in_spectra_column(row); |
---|
| 308 | Vector<Float> tsys = in_tsys_column(row); |
---|
| 309 | Vector<uChar> flag = in_flagtra_column(row); |
---|
[2978] | 310 | |
---|
[2919] | 311 | // ALMA Calibration |
---|
| 312 | // |
---|
| 313 | // Ta* = Tsys * ( ON - OFF ) / OFF |
---|
| 314 | // |
---|
| 315 | // 2010/01/07 Takeshi Nakazato |
---|
| 316 | unsigned int tsyssize = tsys.nelements() ; |
---|
| 317 | for ( unsigned int j = 0 ; j < spsize ; j++ ) { |
---|
[2978] | 318 | //if there is no off data available for a channel, just flag the channel.(2014/7/18 WK) |
---|
| 319 | if ((ids[2*j] == -1)&&(ids[2*j+1] == -1)) { |
---|
| 320 | flag[j] = 1 << 7; |
---|
| 321 | continue; |
---|
[2919] | 322 | } |
---|
[2978] | 323 | |
---|
| 324 | if (refFlagrowVec[row] == 0) { |
---|
| 325 | if ( spoff[j] == 0.0 ) { |
---|
| 326 | spec[j] = 0.0 ; |
---|
| 327 | flag[j] = (uChar)True; |
---|
| 328 | } |
---|
| 329 | else { |
---|
| 330 | spec[j] = ( spec[j] - spoff[j] ) / spoff[j] ; |
---|
| 331 | } |
---|
| 332 | spec[j] *= (tsyssize == spsize) ? tsys[j] : tsys[0]; |
---|
[2919] | 333 | } |
---|
| 334 | } |
---|
| 335 | out_spectra_column.put(row, spec); |
---|
| 336 | out_flagtra_column.put(row, flag); |
---|
| 337 | } |
---|
| 338 | } |
---|
| 339 | static void CalibrateChopperWheel( CountedPtr<Scantable> &out, |
---|
| 340 | const CountedPtr<Scantable>& on, |
---|
| 341 | const CountedPtr<Scantable>& off, |
---|
| 342 | const CountedPtr<Scantable>& sky, |
---|
| 343 | const CountedPtr<Scantable>& hot, |
---|
[3072] | 344 | const CountedPtr<Scantable>& /*cold*/, |
---|
[2919] | 345 | const Vector<uInt> &rows ) |
---|
| 346 | { |
---|
| 347 | // 2012/05/22 TN |
---|
| 348 | // Assume that out has empty SPECTRA column |
---|
| 349 | |
---|
| 350 | // if rows is empty, just return |
---|
| 351 | if ( rows.nelements() == 0 ) |
---|
| 352 | return ; |
---|
| 353 | |
---|
| 354 | string antenna_name = out->getAntennaName(); |
---|
| 355 | ROArrayColumn<Float> in_spectra_column(on->table(), "SPECTRA"); |
---|
| 356 | ROArrayColumn<uChar> in_flagtra_column(on->table(), "FLAGTRA"); |
---|
| 357 | ArrayColumn<Float> out_spectra_column(out->table(), "SPECTRA"); |
---|
| 358 | ArrayColumn<uChar> out_flagtra_column(out->table(), "FLAGTRA"); |
---|
| 359 | ArrayColumn<Float> out_tsys_column(out->table(), "TSYS"); |
---|
| 360 | |
---|
| 361 | Vector<Double> timeOff = GetScalarColumn<Double>(off->table(), "TIME"); |
---|
| 362 | Vector<Double> timeSky = GetScalarColumn<Double>(sky->table(), "TIME"); |
---|
| 363 | Vector<Double> timeHot = GetScalarColumn<Double>(hot->table(), "TIME"); |
---|
| 364 | Vector<Double> timeOn = GetScalarColumn<Double>(on->table(), "TIME"); |
---|
[2978] | 365 | Vector<uInt> flagrowOff = GetScalarColumn<uInt>(off->table(), "FLAGROW"); |
---|
| 366 | Vector<uInt> flagrowSky = GetScalarColumn<uInt>(sky->table(), "FLAGROW"); |
---|
| 367 | Vector<uInt> flagrowHot = GetScalarColumn<uInt>(hot->table(), "FLAGROW"); |
---|
| 368 | Vector<uInt> flagrowOn = GetScalarColumn<uInt>(on->table(), "FLAGROW"); |
---|
| 369 | Matrix<uChar> flagtraOff = GetArrayColumn<uChar>(off->table(), "FLAGTRA"); |
---|
| 370 | Matrix<uChar> flagtraSky = GetArrayColumn<uChar>(sky->table(), "FLAGTRA"); |
---|
| 371 | Matrix<uChar> flagtraHot = GetArrayColumn<uChar>(hot->table(), "FLAGTRA"); |
---|
[2919] | 372 | SpectralData offspectra(Matrix<Float>(GetArrayColumn<Float>(off->table(), "SPECTRA"))); |
---|
| 373 | SpectralData skyspectra(Matrix<Float>(GetArrayColumn<Float>(sky->table(), "SPECTRA"))); |
---|
| 374 | SpectralData hotspectra(Matrix<Float>(GetArrayColumn<Float>(hot->table(), "SPECTRA"))); |
---|
| 375 | TcalData tcaldata(sky); |
---|
| 376 | TsysData tsysdata(sky); |
---|
| 377 | unsigned int spsize = on->nchan( on->getIF(rows[0]) ) ; |
---|
[2978] | 378 | vector<int> idsOff( 2 * spsize ) ; |
---|
| 379 | vector<int> idsSky( 2 * spsize ) ; |
---|
| 380 | vector<int> idsHot( 2 * spsize ) ; |
---|
| 381 | for ( unsigned int irow = 0 ; irow < rows.nelements() ; irow++ ) { |
---|
[2919] | 382 | uInt row = rows[irow]; |
---|
| 383 | double reftime = timeOn[row]; |
---|
[2978] | 384 | idsOff = getRowIdFromTime2( reftime, timeOff, flagrowOff, flagtraOff ) ; |
---|
| 385 | Vector<Float> spoff = SimpleInterpolationHelper<SpectralData>::GetFromTime(reftime, timeOff, idsOff, offspectra, "linear"); |
---|
| 386 | idsSky = getRowIdFromTime2( reftime, timeSky, flagrowSky, flagtraSky ) ; |
---|
| 387 | Vector<Float> spsky = SimpleInterpolationHelper<SpectralData>::GetFromTime(reftime, timeSky, idsSky, skyspectra, "linear"); |
---|
| 388 | Vector<Float> tcal = SimpleInterpolationHelper<TcalData>::GetFromTime(reftime, timeSky, idsSky, tcaldata, "linear"); |
---|
| 389 | Vector<Float> tsys = SimpleInterpolationHelper<TsysData>::GetFromTime(reftime, timeSky, idsSky, tsysdata, "linear"); |
---|
| 390 | idsHot = getRowIdFromTime2( reftime, timeHot, flagrowHot, flagtraHot ) ; |
---|
| 391 | Vector<Float> sphot = SimpleInterpolationHelper<SpectralData>::GetFromTime(reftime, timeHot, idsHot, hotspectra, "linear"); |
---|
[2919] | 392 | Vector<Float> spec = in_spectra_column(row); |
---|
| 393 | Vector<uChar> flag = in_flagtra_column(row); |
---|
| 394 | if ( antenna_name.find( "APEX" ) != String::npos ) { |
---|
| 395 | // using gain array |
---|
| 396 | for ( unsigned int j = 0 ; j < tcal.size() ; j++ ) { |
---|
[2978] | 397 | //if at least one of off/sky/hot data unavailable, just flag the channel. |
---|
| 398 | if (((idsOff[2*j] == -1)&&(idsOff[2*j+1] == -1))|| |
---|
| 399 | ((idsSky[2*j] == -1)&&(idsSky[2*j+1] == -1))|| |
---|
| 400 | ((idsHot[2*j] == -1)&&(idsHot[2*j+1] == -1))) { |
---|
[2919] | 401 | flag[j] = (uChar)True; |
---|
[2978] | 402 | continue; |
---|
[2919] | 403 | } |
---|
[2978] | 404 | if (flagrowOn[row] == 0) { |
---|
| 405 | if ( spoff[j] == 0.0 || (sphot[j]-spsky[j]) == 0.0 ) { |
---|
| 406 | spec[j] = 0.0 ; |
---|
| 407 | flag[j] = (uChar)True; |
---|
| 408 | } |
---|
| 409 | else { |
---|
| 410 | spec[j] = ( ( spec[j] - spoff[j] ) / spoff[j] ) |
---|
| 411 | * ( spsky[j] / ( sphot[j] - spsky[j] ) ) * tcal[j] ; |
---|
| 412 | } |
---|
[2919] | 413 | } |
---|
| 414 | } |
---|
| 415 | } |
---|
| 416 | else { |
---|
| 417 | // Chopper-Wheel calibration (Ulich & Haas 1976) |
---|
| 418 | for ( unsigned int j = 0 ; j < tcal.size() ; j++ ) { |
---|
[2978] | 419 | //if at least one of off/sky/hot data unavailable, just flag the channel. |
---|
| 420 | if (((idsOff[2*j] == -1)&&(idsOff[2*j+1] == -1))|| |
---|
| 421 | ((idsSky[2*j] == -1)&&(idsSky[2*j+1] == -1))|| |
---|
| 422 | ((idsHot[2*j] == -1)&&(idsHot[2*j+1] == -1))) { |
---|
[2919] | 423 | flag[j] = (uChar)True; |
---|
[2978] | 424 | continue; |
---|
[2919] | 425 | } |
---|
[2978] | 426 | if (flagrowOn[row] == 0) { |
---|
| 427 | if ( (sphot[j]-spsky[j]) == 0.0 ) { |
---|
| 428 | spec[j] = 0.0 ; |
---|
| 429 | flag[j] = (uChar)True; |
---|
| 430 | } |
---|
| 431 | else { |
---|
| 432 | spec[j] = ( spec[j] - spoff[j] ) / ( sphot[j] - spsky[j] ) * tcal[j] ; |
---|
| 433 | } |
---|
[2919] | 434 | } |
---|
| 435 | } |
---|
| 436 | } |
---|
| 437 | out_spectra_column.put(row, spec); |
---|
| 438 | out_flagtra_column.put(row, flag); |
---|
| 439 | out_tsys_column.put(row, tsys); |
---|
| 440 | } |
---|
| 441 | } |
---|
| 442 | static void GetSelector(STSelector &sel, const vector<string> &names, const Record &values) |
---|
| 443 | { |
---|
| 444 | stringstream ss ; |
---|
| 445 | ss << "SELECT FROM $1 WHERE "; |
---|
| 446 | string separator = ""; |
---|
| 447 | for (vector<string>::const_iterator i = names.begin(); i != names.end(); ++i) { |
---|
| 448 | ss << separator << *i << "=="; |
---|
| 449 | switch (values.dataType(*i)) { |
---|
| 450 | case TpUInt: |
---|
| 451 | ss << values.asuInt(*i); |
---|
| 452 | break; |
---|
| 453 | case TpInt: |
---|
| 454 | ss << values.asInt(*i); |
---|
| 455 | break; |
---|
| 456 | case TpFloat: |
---|
| 457 | ss << values.asFloat(*i); |
---|
| 458 | break; |
---|
| 459 | case TpDouble: |
---|
| 460 | ss << values.asDouble(*i); |
---|
| 461 | break; |
---|
| 462 | case TpComplex: |
---|
| 463 | ss << values.asComplex(*i); |
---|
| 464 | break; |
---|
| 465 | case TpString: |
---|
| 466 | ss << values.asString(*i); |
---|
| 467 | break; |
---|
| 468 | default: |
---|
| 469 | break; |
---|
| 470 | } |
---|
| 471 | separator = "&&"; |
---|
| 472 | } |
---|
| 473 | sel.setTaQL(ss.str()); |
---|
| 474 | } |
---|
| 475 | private: |
---|
| 476 | template<class T> |
---|
| 477 | static Vector<T> GetScalarColumn(const Table &table, const String &name) |
---|
| 478 | { |
---|
| 479 | ROScalarColumn<T> column(table, name); |
---|
| 480 | return column.getColumn(); |
---|
| 481 | } |
---|
| 482 | template<class T> |
---|
| 483 | static Array<T> GetArrayColumn(const Table &table, const String &name) |
---|
| 484 | { |
---|
| 485 | ROArrayColumn<T> column(table, name); |
---|
| 486 | return column.getColumn(); |
---|
| 487 | } |
---|
| 488 | }; |
---|
[2917] | 489 | |
---|
[2919] | 490 | class AlmaCalibrator |
---|
| 491 | { |
---|
| 492 | public: |
---|
| 493 | AlmaCalibrator(CountedPtr<Scantable> &out, |
---|
| 494 | const CountedPtr<Scantable> &on, |
---|
| 495 | const CountedPtr<Scantable> &off) |
---|
| 496 | : target_(out), |
---|
| 497 | selector_(), |
---|
| 498 | on_(on), |
---|
| 499 | off_(off) |
---|
| 500 | {} |
---|
| 501 | ~AlmaCalibrator() {} |
---|
| 502 | CountedPtr<Scantable> target() const {return target_;} |
---|
| 503 | void Process(const vector<string> &cols, const Record &values, const Vector<uInt> &rows) { |
---|
| 504 | CalibrationHelper::GetSelector(selector_, cols, values); |
---|
| 505 | off_->setSelection(selector_); |
---|
| 506 | CalibrationHelper::CalibrateALMA(target_, on_, off_, rows); |
---|
| 507 | off_->unsetSelection(); |
---|
| 508 | } |
---|
| 509 | private: |
---|
| 510 | CountedPtr<Scantable> target_; |
---|
| 511 | STSelector selector_; |
---|
| 512 | const CountedPtr<Scantable> on_; |
---|
| 513 | const CountedPtr<Scantable> off_; |
---|
| 514 | }; |
---|
| 515 | |
---|
| 516 | class ChopperWheelCalibrator |
---|
| 517 | { |
---|
| 518 | public: |
---|
| 519 | ChopperWheelCalibrator(CountedPtr<Scantable> &out, |
---|
| 520 | const CountedPtr<Scantable> &on, |
---|
| 521 | const CountedPtr<Scantable> &sky, |
---|
| 522 | const CountedPtr<Scantable> &off, |
---|
| 523 | const CountedPtr<Scantable> &hot, |
---|
| 524 | const CountedPtr<Scantable> &cold) |
---|
| 525 | : target_(out), |
---|
| 526 | selector_(), |
---|
| 527 | on_(on), |
---|
| 528 | off_(off), |
---|
| 529 | sky_(sky), |
---|
| 530 | hot_(hot), |
---|
| 531 | cold_(cold) |
---|
| 532 | {} |
---|
| 533 | ~ChopperWheelCalibrator() {} |
---|
| 534 | CountedPtr<Scantable> target() const {return target_;} |
---|
| 535 | void Process(const vector<string> &cols, const Record &values, const Vector<uInt> &rows) { |
---|
| 536 | CalibrationHelper::GetSelector(selector_, cols, values); |
---|
| 537 | off_->setSelection(selector_); |
---|
| 538 | sky_->setSelection(selector_); |
---|
| 539 | hot_->setSelection(selector_); |
---|
| 540 | CalibrationHelper::CalibrateChopperWheel(target_, on_, off_, sky_, hot_, cold_, rows); |
---|
| 541 | off_->unsetSelection(); |
---|
| 542 | sky_->unsetSelection(); |
---|
| 543 | hot_->unsetSelection(); |
---|
| 544 | } |
---|
| 545 | private: |
---|
| 546 | CountedPtr<Scantable> target_; |
---|
| 547 | STSelector selector_; |
---|
| 548 | const CountedPtr<Scantable> on_; |
---|
| 549 | const CountedPtr<Scantable> off_; |
---|
| 550 | const CountedPtr<Scantable> sky_; |
---|
| 551 | const CountedPtr<Scantable> hot_; |
---|
| 552 | const CountedPtr<Scantable> cold_; |
---|
| 553 | }; |
---|
| 554 | |
---|
[2917] | 555 | } // anonymous namespace |
---|