Dispersion.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2006-2010 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// psrchive/More/General/Pulsar/Dispersion.h
 
#ifndef __Pulsar_Dispersion_h
#define __Pulsar_Dispersion_h
 
#include "Pulsar/ColdPlasma.h"
#include "Pulsar/Config.h"
#include "Pulsar/DispersionDelay.h"
#include "Pulsar/Dedisperse.h"
#include "Pulsar/IntegrationBarycentre.h"
 
namespace Pulsar {


  class Dispersion : public ColdPlasma<DispersionDelay,Dedisperse> {
 
  public:

    Dispersion ();


    double get_relative_measure (const Integration*) const override;


    double get_absolute_measure (const Integration*) const override;


    bool get_relative_corrected (const Integration*) const override;


    bool get_absolute_corrected (const Integration*) const override;

    double get_identity () const override { return 0; }

    void combine (double& result, const double& add) const override { result += add; }

    void update (const Integration*) override;

    void apply (Integration*, unsigned channel, double delay) override;

    void execute (Archive*) override;

    void revert (Archive*) override;

    void set_dispersion_measure (double dispersion_measure)
    { relative.set_measure (dispersion_measure); }
      
    double get_dispersion_measure () const
    { return relative.get_measure (); }

    double get_delay () const;

    double get_shift () const;
 
  protected:
 
    double folding_period;
 
    static Option<bool> barycentric_correction;
    IntegrationBarycentre bary;
    double earth_doppler;
 
  };
 
}
 
#endif