MSSimulator.h

Classes

MSSimulator -- Create an empty MeasurementSet from observation and telescope descriptions. (full description)

class MSSimulator

Interface

Public Members

MSSimulator()

MSSimulator(const MSSimulator & mss)

~MSSimulator()

MSSimulator & operator=(const MSSimulator &)

void initAnt(const String& telname, const Vector<Double>& x, const Vector<Double>& y, const Vector<Double>& z, const Vector<Float>& dishDiameter, const Vector<String>& mount, const Vector<String>& name, const String& coordsystem, const MPosition& mRefLocation)

void initFields(const uInt nSources, const Vector<String>& sourceName, const Vector<MDirection>& sourceDirection, const Vector<Int>& intsPerPointing, const Vector<Int>& mosPointingsX, const Vector<Int>& mosPointingsY, const Vector<Float>& mosSpacing)

void initFeeds(const String& mode)

void initSpWindows(const uInt nSpWindows, const Vector<String>& spWindowName, const Vector<Int>& nChan, const Vector<Quantity>& startFreq, const Vector<Quantity>& freqInc, const Vector<Quantity>& freqRes, const Vector<String>& stokesString)

void setFractionBlockageLimit(const Double fraclimit)

void setElevationLimit(const Quantity& ellimit)

void setAutoCorrelationWt(const Float autocorrwt)

void setTimes(const Quantity& qIntegrationTime, const Quantity& qGapTime, const Bool useHourAngles, const Quantity& qStartTime, const Quantity& qStopTime, const MEpoch& qRefTime )

void writeMS(const String& msname)

void extendMS(MeasurementSet & ms)

Private Members

void local2global(Vector<Double>& xReturned, Vector<Double>& yReturned, Vector<Double>& zReturned, const MPosition& mRefLocation, const Vector<Double>& xIn, const Vector<Double>& yIn, const Vector<Double>& zIn)

void longlat2global(Vector<Double>& xReturned, Vector<Double>& yReturned, Vector<Double>& zReturned, const MPosition& mRefLocation, const Vector<Double>& xIn, const Vector<Double>& yIn, const Vector<Double>& zIn)

Description

Prerequisite

MeasurementSet

Etymology

MS is from MeasurementSet, Simulator refers to the generation of 'fake' data from a set of parameters for instrument and sources.

Synopsis

This class creates a MeasurementSet from a set of parameters for instrument and sources. It does not simulate the data, only the coordinates of a measurement. The application "simulator" uses this class to create a true simulated MS with perfect or corrupted data.

Motivation

To test calibration and imaging programs it is necessary to have flawless data and data with errors that are known exactly. This class generates empty MeasurementSets (only coordinates filled in) that can be filled with predicted data.

To Do

The amount of information to be specified by the user could be much larger. For the moment it has been restricted to what is needed for testing the synthesis imaging code. Already it is possible to create MeasurementSets that cannot be processed yet.

Member Description

MSSimulator()

Default constructor - use this, then invoke initAnt, initFeed, initSpWindow, initConfig.

MSSimulator(const MSSimulator & mss)

Copy constructor - for completeness only