Visibility Measurement Equation. More...

#include <VisEquation.h>

Public Member Functions
	VisEquation ()
	Contructor.
	VisEquation (const VisEquation &other)
	Copy ctor.
virtual	~VisEquation ()
	Destructor.
VisEquation &	operator= (const VisEquation &other)
	Assignment.
void	setapply (PtrBlock< VisCal * > &vcin)
	Arrange for apply of a VisCal list (i.e., sort them into the correct order)
void	setsolve (SolvableVisCal &svc)
	Arrange for solve of a single SolvableVisCal.
void	setPivot (VisCal::Type pivot)
	Arrange a pivot point for evaluating the equation in collapseForSim.
void	setModel (const Vector< Float > &stokes)
	Arrange the model to use for calibration.
void	unSetModel ()
Bool	spwOK (const Int &spw)
	Report if spw has solutions available from all applied tables.
void	correct (VisBuffer &vb, Bool trial=False)
	Correct in place the OBSERVED visibilities in a VisBuffer with the apply-able VisCals.
Record	actionRec ()
	Report flag-by-cal statistics.
void	corrupt (VisBuffer &vb)
	Corrupt in place the MODEL visibilities in a VisBuffer with the apply-able VisCals.
void	collapse (VisBuffer &vb)
	Correct/Corrupt in place the OBSERVED/MODEL visibilities in a VisBuffer with the apply-able VisCals on either side of the SolvableVisCal.
void	collapseForSim (VisBuffer &vb)
	This collapse avoids I/O (assumes the vb data/model are ready), and uses a generic pivot (see setPivot) rather than the svc void collapseForSim(VisBuffer& vb);.
void	residuals (VisBuffer &vb, Cube< Complex > &R, const Int chan=-1)
	Calculate residuals (optionally for specific chan)
void	diffResiduals (CalVisBuffer &cvb)
	Calculate residuals and differentiated residuals (optionally for specific chan)
void	diffResiduals (VisBuffer &vb, Cube< Complex > &R, Array< Complex > &dR, Matrix< Bool > &Rflg)
void	diffResiduals (VisBuffer &R, VisBuffer &dR0, VisBuffer &dR1, Matrix< Bool > &Rflg)
void	state ()
	Report the VisEq's state.
const VisCal::Type	pivot () const
void	setPrtlev (const Int &prtlev)
	Set the print level.
Protected Member Functions
Bool	ok ()
PtrBlock< VisCal * > &	vc ()
	Access to the PB of apply terms.
SolvableVisCal &	svc ()
	Access to SVC.
void	setFreqDep ()
	Detect freq dependence along the Vis Equation.
Private Member Functions
Int &	prtlev ()
	Diagnostic print level access.
Private Attributes
PtrBlock< VisCal * > *	vcpb_
	A local copy of the list of VisCal (pointers) for applying (No ownership responsibilities)
Int	napp_
	Number of apply VisCals in vc_.
Int	lfd_
	Frequency dependence indices.
Int	rfd_
Bool	freqAveOK_
	Trap for frequency averaging in collapse.
SolvableVisCal *	svc_
	VisCal with solving interface (No ownership responsibilities)
VisCal::Type	pivot_
	The pivot point used by collapse2.
Bool	useInternalModel_
	An internal (global) point source model.
Vector< Float >	stokesModel_
Int	prtlev_
	Diagnostic print level.

Detailed Description

Visibility Measurement Equation.

Intended use:

Public interface

Prerequisite

MeasurementComponents module

Etymology

Visibility Equation describes a model for measurements from a generic synthesis telescope

Synopsis

This is responsible for the Measurement Equation of the Generic Interferometer due to Hamaker, Bregman and Sault and later extended by Noordam, and Cornwell.

See MeasurementEquations for more details of the form of the VisEquation.

VisEquation provides the following:

Sorting of calibration terms (VisCals) in the Visibility Equation
Application of calibration terms to data (via delegation to VisCals)
Delivery of other evaluations of the VisEquation, e.g., (differentiated) residuals

Example

Motivation

VisEquation is part of a framework of classes that are designed for synthesis calibration and imaging. The others are the MeasurementComponents .

Definition at line 89 of file VisEquation.h.

Constructor & Destructor Documentation

casa::VisEquation::VisEquation ( )

Contructor.

casa::VisEquation::VisEquation ( const VisEquation & other )

Copy ctor.

virtual casa::VisEquation::~VisEquation ( ) [virtual]

Destructor.

Member Function Documentation

Record casa::VisEquation::actionRec ( )

Report flag-by-cal statistics.

void casa::VisEquation::collapse ( VisBuffer & vb )

Correct/Corrupt in place the OBSERVED/MODEL visibilities in a VisBuffer with the apply-able VisCals on either side of the SolvableVisCal.

void casa::VisEquation::collapseForSim ( VisBuffer & vb )

This collapse avoids I/O (assumes the vb data/model are ready), and uses a generic pivot (see setPivot) rather than the svc void collapseForSim(VisBuffer& vb);.

void casa::VisEquation::correct	(	VisBuffer &	vb,
		Bool	trial = `False`
	)

Correct in place the OBSERVED visibilities in a VisBuffer with the apply-able VisCals.

void casa::VisEquation::corrupt ( VisBuffer & vb )

Corrupt in place the MODEL visibilities in a VisBuffer with the apply-able VisCals.

void casa::VisEquation::diffResiduals ( CalVisBuffer & cvb )

Calculate residuals and differentiated residuals (optionally for specific chan)

void casa::VisEquation::diffResiduals	(	VisBuffer &	vb,
		Cube< Complex > &	R,
		Array< Complex > &	dR,
		Matrix< Bool > &	Rflg
	)

void casa::VisEquation::diffResiduals	(	VisBuffer &	R,
		VisBuffer &	dR0,
		VisBuffer &	dR1,
		Matrix< Bool > &	Rflg
	)

Bool casa::VisEquation::ok ( ) [protected]

VisEquation& casa::VisEquation::operator= ( const VisEquation & other )

Assignment.

const VisCal::Type casa::VisEquation::pivot ( ) const [inline]

Definition at line 163 of file VisEquation.h.

References pivot_.

Int& casa::VisEquation::prtlev ( ) [inline, private]

Diagnostic print level access.

Definition at line 184 of file VisEquation.h.

Referenced by setPrtlev().

void casa::VisEquation::residuals	(	VisBuffer &	vb,
		Cube< Complex > &	R,
		const Int	chan = `-1`
	)

Calculate residuals (optionally for specific chan)

void casa::VisEquation::setapply ( PtrBlock< VisCal * > & vcin )

Arrange for apply of a VisCal list (i.e., sort them into the correct order)

void casa::VisEquation::setFreqDep ( ) [protected]

Detect freq dependence along the Vis Equation.

void casa::VisEquation::setModel ( const Vector< Float > & stokes )

Arrange the model to use for calibration.

void casa::VisEquation::setPivot ( VisCal::Type pivot )

Arrange a pivot point for evaluating the equation in collapseForSim.

void casa::VisEquation::setPrtlev ( const Int & prtlev ) [inline]

Set the print level.

Definition at line 166 of file VisEquation.h.

References prtlev(), and prtlev_.

void casa::VisEquation::setsolve ( SolvableVisCal & svc )

Arrange for solve of a single SolvableVisCal.

Bool casa::VisEquation::spwOK ( const Int & spw )

Report if spw has solutions available from all applied tables.

void casa::VisEquation::state ( )

Report the VisEq's state.

SolvableVisCal& casa::VisEquation::svc ( ) [inline, protected]

Access to SVC.

Definition at line 176 of file VisEquation.h.

References svc_.

void casa::VisEquation::unSetModel ( ) [inline]

Definition at line 115 of file VisEquation.h.

References casa::False, and useInternalModel_.

PtrBlock<VisCal*>& casa::VisEquation::vc ( ) [inline, protected]

Access to the PB of apply terms.

Definition at line 173 of file VisEquation.h.

References vcpb_.

Member Data Documentation

Bool casa::VisEquation::freqAveOK_ [private]

Trap for frequency averaging in collapse.

Definition at line 198 of file VisEquation.h.

Int casa::VisEquation::lfd_ [private]

Frequency dependence indices.

Definition at line 194 of file VisEquation.h.

Int casa::VisEquation::napp_ [private]

Number of apply VisCals in vc_.

Definition at line 191 of file VisEquation.h.

VisCal::Type casa::VisEquation::pivot_ [private]

The pivot point used by collapse2.

Definition at line 205 of file VisEquation.h.

Referenced by pivot().

Int casa::VisEquation::prtlev_ [private]

Diagnostic print level.

Definition at line 212 of file VisEquation.h.

Referenced by setPrtlev().

Int casa::VisEquation::rfd_ [private]

Definition at line 195 of file VisEquation.h.

Vector<Float> casa::VisEquation::stokesModel_ [private]

Definition at line 209 of file VisEquation.h.

SolvableVisCal* casa::VisEquation::svc_ [private]

VisCal with solving interface (No ownership responsibilities)

Definition at line 202 of file VisEquation.h.

Referenced by svc().

Bool casa::VisEquation::useInternalModel_ [private]

An internal (global) point source model.

Definition at line 208 of file VisEquation.h.

Referenced by unSetModel().

PtrBlock<VisCal*>* casa::VisEquation::vcpb_ [private]

A local copy of the list of VisCal (pointers) for applying (No ownership responsibilities)

Definition at line 184 of file VisEquation.h.

Referenced by vc().

The documentation for this class was generated from the following file:

code/synthesis/MeasurementEquations/VisEquation.h

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes