FJones.h

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00001 //# FJones.h:  Declaration of Ionospheric corrections
00002 //# Copyright (C) 1996,1997,2000,2001,2002,2003,2011,2014
00003 //# Associated Universities, Inc. Washington DC, USA.
00004 //#
00005 //# This library is free software; you can redistribute it and/or modify it
00006 //# under the terms of the GNU Library General Public License as published by
00007 //# the Free Software Foundation; either version 2 of the License, or (at your
00008 //# option) any later version.
00009 //#
00010 //# This library is distributed in the hope that it will be useful, but WITHOUT
00011 //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00012 //# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
00013 //# License for more details.
00014 //#
00015 //# You should have received a copy of the GNU Library General Public License
00016 //# along with this library; if not, write to the Free Software Foundation,
00017 //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
00018 //#
00019 //# Correspondence concerning AIPS++ should be adressed as follows:
00020 //#        Internet email: aips2-request@nrao.edu.
00021 //#        Postal address: AIPS++ Project Office
00022 //#                        National Radio Astronomy Observatory
00023 //#                        520 Edgemont Road
00024 //#                        Charlottesville, VA 22903-2475 USA
00025 //#
00026 //#
00027 
00028 #ifndef SYNTHESIS_FJONES_H
00029 #define SYNTHESIS_FJONES_H
00030 
00031 #include <casa/aips.h>
00032 #include <casa/Containers/Record.h>
00033 #include <casa/BasicSL/Complex.h>
00034 #include <synthesis/MeasurementComponents/VisCal.h>
00035 #include <synthesis/MeasurementComponents/SolvableVisCal.h>
00036 //#include <synthesis/MeasurementComponents/CalCorruptor.h>
00037 
00038 #include <measures/Measures/EarthMagneticMachine.h>
00039 
00040 namespace casa { //# NAMESPACE CASA - BEGIN
00041 
00042 class FJones : public SolvableVisJones {
00043 public:
00044 
00045   // Constructor
00046   FJones(VisSet& vs);
00047   FJones(String msname,Int MSnAnt,Int MSnSpw);
00048   FJones(const MSMetaInfoForCal& msmc);
00049   //  FJones(const Int& nAnt);  // NYI
00050 
00051   virtual ~FJones();
00052 
00053   // Return the type enum
00054   virtual Type type() { return VisCal::F; };
00055 
00056   // Return type name as string
00057   virtual String typeName()     { return "F Jones"; };
00058   virtual String longTypeName() { return "F Jones (Ionosphere)"; };
00059 
00060   // Report current Jones type (circ=diag, lin=general)
00061   Jones::JonesType jonesType() { return pjonestype_; };
00062 
00063   // Par is freq-INdep, but matrix is freq-dep
00064   virtual Bool freqDepPar() { return False; };
00065   virtual Bool freqDepMat() { return True; };
00066 
00067   // We have Float parameters
00068   virtual VisCalEnum::VCParType parType() { return VisCalEnum::REAL; };
00069 
00070   // Local setapply to enforce calwt=F and spwmap=[0] for FJones
00071   virtual void setApply(const Record& apply);
00072   using SolvableVisJones::setApply;
00073 
00074   // Report apply-related info
00075   String applyinfo();
00076 
00077   // Local specializations for TEC generation
00078   virtual void setSpecify(const Record& specify);
00079   virtual void specify(const Record& specify);
00080 
00081 protected:
00082 
00083   // FJones has one Float par per ant
00084   virtual Int nPar() { return 1; };
00085 
00086   // Jones matrix elements are NOT trivial
00087   virtual Bool trivialJonesElem() { return False; };
00088 
00089   // Access to z.a. data
00090   Vector<Double>& za() { return za_; };
00091 
00092   // Detect pol basis and some geometry
00093   virtual void syncMeta(const VisBuffer& vb);
00094   virtual void syncMeta2(const vi::VisBuffer2& vb);
00095 
00096   // Calculate parameters (in this case, the z.a.)
00097   virtual void calcPar();
00098 
00099   // Calculate the FJones matrix for all ants
00100   virtual void calcAllJones();
00101 
00102 private:
00103 
00104   // TEC specify/retrieval mode
00105   String tectype_;
00106 
00107   // Field calculation components
00108   MeasFrame mframe_;
00109   EarthMagneticMachine *emm_;
00110 
00111   // Fiducial ionosphere height
00112   Quantity ionhgt_;
00113 
00114   // TEC image filename
00115   String tecimname_;
00116 
00117   // zenith angle per antenna
00118   Vector<Double> za_;
00119 
00120   // The magnetic field
00121   Vector<Double> BlosG_;
00122 
00123   // Units
00124   Double radper_;
00125 
00126   // Lin (general) or Circ (diag)
00127   Jones::JonesType pjonestype_;
00128 
00129   // Measures geometry
00130   MDirection phasedir_p;
00131   ROScalarMeasColumn<MPosition> antpos_p;
00132 
00133 };
00134 
00135 } //# NAMESPACE CASA - END
00136 
00137 #endif
00138 
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