Last change
on this file since 1225 was 1007, checked in by mar637, 18 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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[904] | 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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[1007] | 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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[904] | 27 |
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[1007] | 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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[904] | 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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