VariableBackend.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2004 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// psrchive/More/Polarimetry/Pulsar/VariableBackend.h
 
#ifndef __CalibrationVariableBackend_H
#define __CalibrationVariableBackend_H
 
#include "MEAL/Complex2.h"
#include "MEAL/ScalarParameter.h"
#include "MEAL/ChainRule.h"
 
#include "Estimate.h"
#include "Stokes.h"
 
namespace Calibration {
 
  class SingleAxis;


 
  class VariableBackend : public MEAL::ChainRule<MEAL::Complex2>
  {
 
  public:

    VariableBackend ();

    VariableBackend (const VariableBackend& s);

    const VariableBackend& operator = (const VariableBackend& s);

    ~VariableBackend ();

    VariableBackend* clone () const;
    
    void set_cyclic (bool flag = true);

    Estimate<double> get_gain () const;

    Estimate<double> get_diff_gain () const;
    
    Estimate<double> get_diff_phase () const;

    void set_gain (const Estimate<double>& gain);

    void set_diff_gain (const Estimate<double>& gamma);
    
    void set_diff_phase (const Estimate<double>& phi);

    const SingleAxis* get_backend () const;
    SingleAxis* get_backend ();

    void set_gain_variation (MEAL::Scalar*);

    void set_diff_gain_variation (MEAL::Scalar*);
    
    void set_diff_phase_variation (MEAL::Scalar*);

    const MEAL::Scalar* get_gain_variation () const;

    const MEAL::Scalar* get_diff_gain_variation () const;
    
    const MEAL::Scalar* get_diff_phase_variation () const;
 
    // ///////////////////////////////////////////////////////////////////
    //
    // Model implementation
    //
    // ///////////////////////////////////////////////////////////////////

    std::string get_name () const;
 
  protected:

    Reference::To<SingleAxis> backend;

    Reference::To<MEAL::Scalar> gain_variation;

    Reference::To<MEAL::Scalar> diff_gain_variation;

    Reference::To<MEAL::Scalar> diff_phase_variation;
 
  private:

    void init ();
 
  };
 
}
 
#endif