Covariance estimation from dual-polarization or quad-polarization data. More...

#include <Covariance.h>

Public Member Functions
void	covariance (std::map< std::string, isce3::io::Raster > &slc, std::map< std::pair< std::string, std::string >, isce3::io::Raster > &cov, size_t rangeLooks=1, size_t azimuthLooks=1)
	Covariance estimation. More...

void	faradayRotation (std::map< std::string, isce3::io::Raster > &slc, isce3::io::Raster &faradayAngleRaster, size_t rangeLooks, size_t azimuthLooks)
	Estimate the Faraday rotation angle from quad-pol data. More...

void	orientationAngle (isce3::io::Raster &azimuthSlopeRaster, isce3::io::Raster &rangeSlopeRaster, isce3::io::Raster &lookAngleRaster, isce3::io::Raster &tauRaster)
	Estimate polarimetric orientation angle. More...

void	geocodeCovariance (isce3::io::Raster &rdrCov, isce3::io::Raster &geoCov, isce3::io::Raster &demRaster)
	Geocode covariance components. More...

void	geocodeCovariance (isce3::io::Raster &rdrCov, isce3::io::Raster &geoCov, isce3::io::Raster &demRaster, isce3::io::Raster &rtc)
	Geocode covariance components. More...

void	geocodeCovariance (isce3::io::Raster &rdrCov, isce3::io::Raster &geoCov, isce3::io::Raster &demRaster, isce3::io::Raster &rtc, isce3::io::Raster &orientationAngle)
	Geocode covariance components. More...

void	geoGrid (double geoGridStartX, double geoGridStartY, double geoGridSpacingX, double geoGridSpacingY, double geoGridEndX, double geoGridEndY, int epsgcode)
	Set geocoded grid. More...

void	geoGrid (double geoGridStartX, double geoGridStartY, double geoGridSpacingX, double geoGridSpacingY, int width, int length, int epsgcode)
	Set geocoded grid. More...

void	radarGrid (isce3::core::LUT2d< double > doppler, isce3::core::DateTime refEpoch, double azimuthStartTime, double azimuthTimeInterval, int radarGridLength, double startingRange, double rangeSpacing, isce3::core::LookSide side, double wavelength, int radarGridWidth)
	Set the input radar grid. More...

void	prf (double p)
	Set pulse repetition frequency (PRF). More...

void	doppler (const isce3::core::LUT2d< double > &dop)
	Set Doppler.

void	rangeSamplingFrequency (double rngSamplingFreq)
	Set range sampling frequency.

void	rangeBandwidth (double rngBandwidth)
	Set range bandwidth.

void	rangePixelSpacing (double rngPixelSpacing)
	Set range pixel spacing.

void	wavelength (double wvl)
	Set radar wavelength.

void	interpolator (isce3::core::dataInterpMethod method)
	Set interpolator method for geocoding.

void	orbit (const isce3::core::Orbit &orbit)
	Set platform's orbit.

void	ellipsoid (const isce3::core::Ellipsoid &ellipsoid)
	Set ellipsoid.

void	projection (isce3::core::ProjectionBase *proj)
	Set the projection object.

void	thresholdGeo2rdr (double threshold)
	Set the threshold for Geo2rdr computation.

void	numiterGeo2rdr (int numiter)
	Set number of iterations Geo2rdr computation.

void	linesPerBlock (size_t linesPerBlock)
	Set lines per block.

void	demBlockMargin (double demBlockMargin)
	Set DEM block margin.

void	radarBlockMargin (int radarBlockMargin)
	Set radar block margin.

void	interpolator (isce3::core::Interpolator< T > *interp)
	Set interpolator.

Detailed Description

template<class T>
class isce3::signal::Covariance< T >

Covariance estimation from dual-polarization or quad-polarization data.

Member Function Documentation

template<class T >

void isce3::signal::Covariance< T >::covariance	(	std::map< std::string, isce3::io::Raster > &	slc,
		std::map< std::pair< std::string, std::string >, isce3::io::Raster > &	cov,
		size_t	rangeLooks = `1`,
		size_t	azimuthLooks = `1`
	)

Covariance estimation.

Parameters

[in]	slc	polarimetric channels provided as std::map of Raster object of polarimetric channels. The keys are two or four of hh, hv, vh, and vv channels.
[out]	cov	covariance components obtained by cross multiplication and multi-looking the polarimetric channels

template<class T >

void isce3::signal::Covariance< T >::faradayRotation	(	std::map< std::string, isce3::io::Raster > &	slc,
		isce3::io::Raster &	faradayAngleRaster,
		size_t	rangeLooks,
		size_t	azimuthLooks
	)

Estimate the Faraday rotation angle from quad-pol data.

Parameters

[in]	slc	polarimetric channels
[out]	faradayAngleRaster	raster object for Faraday rotation angle
[in]	rangeLooks	number of looks in range direction
[in]	azimuthLooks	number of looks in azimuth direction

template<class T >

void isce3::signal::Covariance< T >::geocodeCovariance	(	isce3::io::Raster &	rdrCov,
		isce3::io::Raster &	geoCov,
		isce3::io::Raster &	demRaster
	)

Geocode covariance components.

Parameters

[in]	rdrCov	covariance componenets in radar range-doppler coordinates
[out]	geoCov	geocoded covariance componenets
[in]	demRaster	digital elevation model (DEM) raster object

template<class T >

void isce3::signal::Covariance< T >::geocodeCovariance	(	isce3::io::Raster &	rdrCov,
		isce3::io::Raster &	geoCov,
		isce3::io::Raster &	demRaster,
		isce3::io::Raster &	rtc
	)

Geocode covariance components.

Radiometric Terrain Correction (RTC) is applied before geocoding.

Parameters

[in]	rdrCov	covariance componenets in radar range-doppler coordinates
[out]	geoCov	geocoded covariance componenets
[in]	demRaster	raster object for digital elevation model (DEM)
[in]	rtcRaster	raster object for radiometric terrain correction (RTC) factor

template<class T >

void isce3::signal::Covariance< T >::geocodeCovariance	(	isce3::io::Raster &	rdrCov,
		isce3::io::Raster &	geoCov,
		isce3::io::Raster &	demRaster,
		isce3::io::Raster &	rtc,
		isce3::io::Raster &	orientationAngle
	)

Geocode covariance components.

RTC and polarimetric orientation angle are applied on Covariance components before geocoding.

Parameters

[in]	rdrCov	covariance componenets in radar range-doppler coordinates
[out]	geoCov	geocoded covariance componenets
[in]	demRaster	raster object for digital elevation model (DEM)
[in]	rtcRaster	raster object for radiometric terrain correction (RTC) factor
[in]	orientationAngleRaster	raster object for polarimetric orientation angle

template<class T >

void isce3::signal::Covariance< T >::geoGrid	(	double	geoGridStartX,
		double	geoGridStartY,
		double	geoGridSpacingX,
		double	geoGridSpacingY,
		double	geoGridEndX,
		double	geoGridEndY,
		int	epsgcode
	)

inline

Set geocoded grid.

Parameters

[in]	geoGridStartX	coordinate X of the upper-left corner of the geocoded grid
[in]	geoGridStartY	coordinate Y of the upper-left corner of the geocoded grid
[in]	geoGridSpacingX	spacing of the geocoded grid in X direction
[in]	geoGridSpacingY	spacing of the geocoded grid in Y direction
[in]	geoGridEndX	coordinate X of the lower-right corner of the geocoded grid
[in]	geoGridEndY	coordinate Y of the lower-right corner of the geocoded grid
[in]	epsgcode	EPSG code for defining the projection system

template<class T >

void isce3::signal::Covariance< T >::geoGrid	(	double	geoGridStartX,
		double	geoGridStartY,
		double	geoGridSpacingX,
		double	geoGridSpacingY,
		int	width,
		int	length,
		int	epsgcode
	)

inline

Set geocoded grid.

Parameters

[in]	geoGridStartX	coordinate X of the upper-left corner of the geocoded grid
[in]	geoGridStartY	coordinate Y of the upper-left corner of the geocoded grid
[in]	geoGridSpacingX	spacing of the geocoded grid in X direction
[in]	geoGridSpacingY	spacing of the geocoded grid in Y direction
[in]	width	number of pixels of the geocoded grid in X direction
[in]	length	number of pixels of the geocoded grid in Y direction
[in]	epsgcode	EPSG code for defining the projection system

template<class T >

void isce3::signal::Covariance< T >::orientationAngle	(	isce3::io::Raster &	azimuthSlopeRaster,
		isce3::io::Raster &	rangeSlopeRaster,
		isce3::io::Raster &	lookAngleRaster,
		isce3::io::Raster &	tauRaster
	)

Estimate polarimetric orientation angle.

Parameters

[in]	azimuthSlopeRaster	raster object of the DEM's slope in azimuth direction
[in]	rangeSlopeRaster	raster object of the DEM's slope in range direction
[in]	lookAngleRaster	raster object of the look angle
[out]	tauRaster	raster object of the polarimetric orientation angle

template<class T >

void isce3::signal::Covariance< T >::prf ( double p )

inline

Set pulse repetition frequency (PRF).

template<class T >

void isce3::signal::Covariance< T >::radarGrid	(	isce3::core::LUT2d< double >	doppler,
		isce3::core::DateTime	refEpoch,
		double	azimuthStartTime,
		double	azimuthTimeInterval,
		int	radarGridLength,
		double	startingRange,
		double	rangeSpacing,
		isce3::core::LookSide	side,
		double	wavelength,
		int	radarGridWidth
	)

inline

Set the input radar grid.

Parameters

[in]	doppler	doppler lookup table
[in]	refEpoch	reference epoch
[in]	azimuthStartTime	start time of the radar grid in azimuth direction
[in]	azimuthTimeInterval	azimuth time interval
[in]	radarGridLength	number of pixels of the radar grid in azimuth direction
[in]	startingRange	starting slant range of the radar grid
[in]	rangeSpacing	range spacing
[in]	side	Left or Right
[in]	wavelength	Radar wavelength
[in]	radarGridWidth	number of pixels of the radar grid in range direction

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

isce/cxx/isce3/signal/Covariance.h
isce/cxx/isce3/signal/Covariance.cpp
isce/cxx/isce3/signal/Covariance.icc

Public Member Functions

Detailed Description

template<class T> class isce3::signal::Covariance< T >

Member Function Documentation

template<class T>
class isce3::signal::Covariance< T >