SimACohCalc: Model additive noise errors for the VisEquation. More...

#include <SimACohCalc.h>

Inheritance diagram for casa::SimACohCalc:

Public Member Functions
	SimACohCalc (const Int seed=1, const Float antefficiency=0.80, const Float correfficiency=0.85, const Float spillefficiency=0.85, const Float tau=0.0, const Quantity &trx=50, const Quantity &tatmos=250, const Quantity &tcmb=2.7)
	Construct from VisSet, seed and rms of additive noise (normal dist.) NOTE: rms is for the tau = 0.0 case, and is augmented as appropriate given tau, tatmos, trx (ie, all NON-atmospheric noise contributions), and airmass= 1/sin(ELEVATION).
virtual	~SimACohCalc ()
	virtual destructor
virtual VisBuffer &	apply (VisBuffer &vb)
	Apply additive error (Inverse is minus)
virtual VisBuffer &	applyInv (VisBuffer &vb)
Private Member Functions
Bool	solve (VisEquation &)
	SimACohCalc ()
Private Attributes
MLCG	rndGen_p
Normal	noiseDist_p
Float	antefficiency_p
Float	correfficiency_p
Float	spillefficiency_p
Float	tau_p
Quantity	trx_p
Quantity	tatmos_p
Quantity	tcmb_p

Detailed Description

SimACohCalc: Model additive noise errors for the VisEquation.

Intended use:

Public interface

Prerequisite

MeasurementComponents module
VisSet class
VisEquation class
SimACoh class

Etymology

SimACohCalc describes random additive errors to be used in the VisEquation , calculated from parameters such as bandwidth, system temperature, integration time, dish diameter, and efficiencies.

Synopsis

See VisEquation for definition of the Visibility Measurement Equation. See ACoh for how SimACohCalc is to be used.

Motivation

The properties of an additive component must be described for the VisEquation .

Definition at line 75 of file SimACohCalc.h.

Constructor & Destructor Documentation

casa::SimACohCalc::SimACohCalc	(	const Int	seed = `1`,
		const Float	antefficiency = `0.80`,
		const Float	correfficiency = `0.85`,
		const Float	spillefficiency = `0.85`,
		const Float	tau = `0.0`,
		const Quantity &	trx = `50`,
		const Quantity &	tatmos = `250`,
		const Quantity &	tcmb = `2.7`
	)

Construct from VisSet, seed and rms of additive noise (normal dist.) NOTE: rms is for the tau = 0.0 case, and is augmented as appropriate given tau, tatmos, trx (ie, all NON-atmospheric noise contributions), and airmass= 1/sin(ELEVATION).

If tau = 0.0, this defaults to the SimACoh case.

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

virtual destructor

casa::SimACohCalc::SimACohCalc ( ) [private]