ObservationUncertainty.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2006 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// psrchive/More/Polarimetry/Pulsar/ObservationUncertainty.h
 
#ifndef __Calibration_ObservationUncertainty_H
#define __Calibration_ObservationUncertainty_H
 
#include "Pulsar/CoherencyMeasurement.h"
 
namespace Calibration {

  class ObservationUncertainty : public CoherencyMeasurement::Uncertainty
  {
 
  public:

    ObservationUncertainty () { }

    ObservationUncertainty (const Stokes<double>& variance);

    ObservationUncertainty* clone () const;

    virtual void add (const Uncertainty*);

    virtual void set_variance (const Stokes<double>&);

    virtual void set_variance (const Stokes< std::complex<double> >&);

    virtual double get_weighted_norm (const Jones<double>&) const;
    
    virtual Jones<double> get_weighted_conjugate (const Jones<double>&) const;

    Stokes<std::complex<double>> get_weighted_components (const Jones<double>&) const;

    Stokes< std::complex<double> > get_variance () const;

    void scale (double);
 
  protected:

    Stokes< std::complex<double> > inv_variance;
 
  };
 
}
 
#endif