carma::pipeline::Tsys Class Reference

Class to calculate, store and update tsys and associated parameters. More...

#include <carma/pipeline/Tsys.h>

Public Member Functions
void	calculateTsys ()
	Calculate tsys. More...
double	getAmbPsysdBm () const
	Retrieve ambient load psys. More...
::std::string	getDetails () const
	String of all calibration calculation information. More...
double	getEffectiveTcal () const
	Retrieve effective calibration temperature. More...
double	getJyPerK () const
	Retrieve janskys per kelvin for flux calibration. More...
double	getTsysDsb () const
	Retrieve double sideband system temperature. More...
double	getTsysLsb () const
	Retrieve lower sideband system temperature. More...
double	getTsysUsb () const
	Retrieve upper sideband system temperature. More...
void	invalidate ()
	Invalid tsys until the next complete ambient/sky cycle. More...
void	setAtmosphericOpacity (double tauLSB, double tauUSB)
	Set atmospheric opacity. More...
void	setAtmosphericTemperature (double atmosphericTemp)
	Set atmospheric temperature. More...
void	setGroundOpacity (double opacity)
	Set effective opacity for ground spillover losses. More...
void	setJanskysPerKelvin (double jyPerK)
	Set Janskys per Kelvin for flux calibration. More...
void	setLoadTemperature (double calTemp)
	Set the effective load temperature. More...
void	setOutsideAmbientTemperature (double ambTemp)
	Set outside ambient temperature. More...
void	setReceiverSidebandRatio (double sbr)
	Set receiver sideband ratio. More...
void	setTotalPower (carma::monitor::AntennaCommon::CalStateMonitorPointEnum::CALSTATE calState, double totalPower, carma::util::frameType frame)
	Set total power data for specified load state. More...
	Tsys ()
	Default Constructor. More...
	Tsys (const Tsys &other)
	Copy Constructor. More...
bool	valid () const
	Is Tsys Valid? More...
	~Tsys ()
	Destructor. More...

Detailed Description

Class to calculate, store and update tsys and associated parameters.

All calculations are based on CARMA Memo #33.

Definition at line 20 of file Tsys.h.

Constructor & Destructor Documentation

carma::pipeline::Tsys::Tsys ( )

explicit

Default Constructor.

carma::pipeline::Tsys::Tsys

(

const Tsys &

other

)

Copy Constructor.

carma::pipeline::Tsys::~Tsys

(

)

Destructor.

Member Function Documentation

void carma::pipeline::Tsys::calculateTsys

(

)

Calculate tsys.

double carma::pipeline::Tsys::getAmbPsysdBm

(

)

const

Retrieve ambient load psys.

For deugging and system diagnostics.

::std::string carma::pipeline::Tsys::getDetails

(

)

const

String of all calibration calculation information.

double carma::pipeline::Tsys::getEffectiveTcal

(

)

const

Retrieve effective calibration temperature.

Debugging.

double carma::pipeline::Tsys::getJyPerK

(

)

const

Retrieve janskys per kelvin for flux calibration.

Returns

JyPerK

double carma::pipeline::Tsys::getTsysDsb

(

)

const

Retrieve double sideband system temperature.

double carma::pipeline::Tsys::getTsysLsb

(

)

const

Retrieve lower sideband system temperature.

double carma::pipeline::Tsys::getTsysUsb

(

)

const

Retrieve upper sideband system temperature.

void carma::pipeline::Tsys::invalidate

(

)

Invalid tsys until the next complete ambient/sky cycle.

void carma::pipeline::Tsys::setAtmosphericOpacity	(	double	tauLSB,
		double	tauUSB
	)

Set atmospheric opacity.

These are used to determine the observed sideband ratio and double sideband atmospheric loss.

See Also

carma::environment::OpacityModel

void carma::pipeline::Tsys::setAtmosphericTemperature

(

double

atmosphericTemp

)

Set atmospheric temperature.

This temperature is commonly referred to as the sky temperature. It is often assumed to be 0.94 * the outside air temperature.

void carma::pipeline::Tsys::setGroundOpacity

(

double

opacity

)

Set effective opacity for ground spillover losses.

void carma::pipeline::Tsys::setJanskysPerKelvin

(

double

jyPerK

)

Set Janskys per Kelvin for flux calibration.

Parameters

jyPerK

value.

void carma::pipeline::Tsys::setLoadTemperature

(

double

calTemp

)

Set the effective load temperature.

This is the temperature of either a temperature controlled hot load or the ambient temperature for a non temperature controlled hot load (e.g. absorber).

void carma::pipeline::Tsys::setOutsideAmbientTemperature

(

double

ambTemp

)

Set outside ambient temperature.

This is temperature as recorded by the weather station. This temperature is also referred to as the ground temperature in CARMA Memo #33.

void carma::pipeline::Tsys::setReceiverSidebandRatio

(

double

sbr

)

Set receiver sideband ratio.

This is the receiver sideband gain ratio. This is not to be confused with the observed sbr measured on a flat continuum astronomical source.

void carma::pipeline::Tsys::setTotalPower	(	carma::monitor::AntennaCommon::CalStateMonitorPointEnum::CALSTATE	calState,
		double	totalPower,
		carma::util::frameType	frame
	)

Set total power data for specified load state.

Parameters

calState	Calibration wheel state.
totalPower	Total power in DBm
frame	Frame time associated with total power.

bool carma::pipeline::Tsys::valid

(

)

const

Is Tsys Valid?

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

• carma/pipeline/Tsys.h