Last change
on this file since 2841 was 1007, checked in by mar637, 19 years ago |
Fixed computiaons of stokes and back after discussions with Jim Caswell.
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File size:
1.3 KB
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1 | //
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2 | // C++ Interface: STPolLinear
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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: Malte Marquarding <Malte.Marquarding@csiro.au>, (C) 2006
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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 | #ifndef ASAPSTPOLLINEAR_H
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13 | #define ASAPSTPOLLINEAR_H
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14 |
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15 | #include "Factory.h"
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16 | #include "STPol.h"
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17 |
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18 | namespace asap {
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19 |
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20 | /**
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21 | The linear representation of polarisation.
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22 | We are using the following convention:
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23 | @li I = XX + YY
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24 | @li Q = XX - YY
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25 | @li U = 2*Real(XY)
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26 | @li V = 2*Imag(XY)
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27 |
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28 | resulting in:
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29 | @li I' = I
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30 | @li Q' = Q * cos(theta) - V *sin(theta)
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31 | @li U' = Q * sin(theta) + U * cos(theta)
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32 | @li V' = V
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33 | @author Malte Marquarding
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34 |
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35 | */
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36 | class STPolLinear : public STPol
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37 | {
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38 | public:
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39 | STPolLinear() {}
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40 |
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41 | STPolLinear(const casa::Matrix<casa::Float>& specs)
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42 | { setSpectra(specs); }
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43 |
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44 | ~STPolLinear();
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45 |
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46 | static Factory<STPol,STPolLinear> myFactory;
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47 |
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48 | virtual casa::Vector<casa::Float> getCircular( casa::uInt index );
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49 |
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50 | virtual casa::Vector<casa::Float> getStokes( casa::uInt index);
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51 |
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52 | virtual casa::Vector<casa::Float> getLinPol( casa::uInt index);
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53 |
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54 | virtual casa::Vector<casa::Float> getLinear( casa::uInt index );
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55 |
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56 | virtual void rotatePhase( casa::Float phase );
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57 | virtual void rotateLinPolPhase( casa::Float phase );
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58 |
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59 | virtual void invertPhase( casa::Float phase );
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60 |
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61 | };
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62 |
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63 | }
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64 |
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65 | #endif
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