source: trunk/src/STAttr.h@ 1575

Last change on this file since 1575 was 1346, checked in by mar637, 18 years ago

Enhancement ticket #105 - addded gain-el curves for Parkes K-band

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 4.4 KB
RevLine 
[353]1//#---------------------------------------------------------------------------
[878]2//# STAttr.h: Return known attributes about telescopes
[353]3//#---------------------------------------------------------------------------
4//# Copyright (C) 2004
5//# ATNF
6//#
7//# This program is free software; you can redistribute it and/or modify it
8//# under the terms of the GNU General Public License as published by the Free
9//# Software Foundation; either version 2 of the License, or (at your option)
10//# any later version.
11//#
12//# This program is distributed in the hope that it will be useful, but
13//# WITHOUT ANY WARRANTY; without even the implied warranty of
14//# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
15//# Public License for more details.
16//#
17//# You should have received a copy of the GNU General Public License along
18//# with this program; if not, write to the Free Software Foundation, Inc.,
19//# 675 Massachusetts Ave, Cambridge, MA 02139, USA.
20//#
21//# Correspondence concerning this software should be addressed as follows:
22//# Internet email: Malte.Marquarding@csiro.au
23//# Postal address: Malte Marquarding,
24//# Australia Telescope National Facility,
25//# P.O. Box 76,
26//# Epping, NSW, 2121,
27//# AUSTRALIA
28//#
[890]29//# $Id: STAttr.h 1346 2007-04-26 03:24:41Z mar637 $
[353]30//#---------------------------------------------------------------------------
[885]31#ifndef STATTR_H
32#define STATTR_H
[353]33
[1188]34#include <string>
35
[353]36#include <casa/aips.h>
37#include <measures/Measures/MEpoch.h>
[717]38#include <casa/Utilities/CountedPtr.h>
[353]39
[894]40#include "Logger.h"
[833]41#include "STDefs.h"
[717]42
[1030]43namespace casa {
44 template<class T> class Vector;
45}
[353]46
47namespace asap {
48
[890]49class STAttr : public Logger {
[353]50
51 public:
52
[717]53 // Constructor
[878]54 STAttr();
[890]55
[717]56 // Destructor
[996]57 virtual ~STAttr();
[890]58
[717]59 // Copy Constructor (copy semantics)
[878]60 STAttr(const STAttr& other);
[890]61
[717]62 // Assignment (copy semantics)
[878]63 STAttr &operator=(const STAttr& other);
[890]64
[717]65 // Telescope diameter(m). Throws exception if unknown.
66 casa::Float diameter(Instrument inst) const;
[890]67
[717]68 // Beam efficiency. Frequency in Hz. Returns 1 if unknown.
[890]69 casa::Vector<casa::Float>
70 beamEfficiency(Instrument instr, const casa::MEpoch& dateObs,
[996]71 const casa::Vector<casa::Float>& freqs) const;
[890]72
[717]73 // Aperture efficiency. Frequency in Hz. Returns 1 if unknown.
[890]74 casa::Vector<casa::Float>
75 apertureEfficiency(Instrument instr,
[996]76 const casa::MEpoch& dateObs,
77 const casa::Vector<casa::Float>& freqs) const;
[890]78
[717]79 // Find factor to convert Jy -> K for this telescope, date of
80 // observation and frequency (Hz)
[890]81 casa::Vector<casa::Float> JyPerK(Instrument instr,
[996]82 const casa::MEpoch& dateObs,
83 const casa::Vector<casa::Float>& freqs)
[717]84 const;
[353]85
[717]86 // Gain Elevation polynomial correction coefficients (elevation in
87 // degrees) Returns length 0 if not known.
88 casa::Vector<casa::Float> gainElevationPoly(Instrument instr) const;
[353]89
[717]90 // Find feed polarization type of feeds. In future this needs to come
91 // from the data themselves
[1188]92 std::string feedPolType(Instrument) const;
[890]93
[717]94 // Helper function to check instrument (antenna) name and give enum
[890]95 static Instrument convertInstrument(const casa::String& instrument,
[475]96 casa::Bool throwIt);
[890]97
[717]98 // Helper function. Finds factor to convert K -> Jy. Provide
99 // aperture efficiency and dish geometric diameter (m)
100 static casa::Float findJyPerK(casa::Float etaAp, casa::Float D);
[890]101
[717]102private:
[890]103
104 // Static data
[717]105 casa::Vector<casa::Float> MopEtaBeamX_; // Beam efficiency
106 casa::Vector<casa::Float> MopEtaBeam2003Y_;
107 casa::Vector<casa::Float> MopEtaBeam2004Y_;
[475]108
[717]109 casa::Vector<casa::Float> MopEtaApX_; // Aperture efficiency
110 casa::Vector<casa::Float> MopEtaAp2004Y_;
[475]111
[717]112 casa::Vector<casa::Float> TidEtaApX_; // Aperture efficiency
113 casa::Vector<casa::Float> TidEtaApY_;
[507]114
[717]115 casa::Vector<casa::Float> TidGainElPoly_; // Gain-el correction poly coeffs
[1346]116 casa::Vector<casa::Float> ParkesGainElPoly_;// K-band Gain-el correction
117 //poly coeffs
[890]118
[717]119 // Init private data
120 void initData();
[353]121
[717]122 // Linear interpolation
[890]123 casa::Vector<casa::Float> interp(const casa::Vector<casa::Float>& xOut,
[996]124 const casa::Vector<casa::Float>& xIn,
125 const casa::Vector<casa::Float>& yIn) const;
[353]126
127
128};
129
130} // namespace
131
132#endif
Note: See TracBrowser for help on using the repository browser.