ionModels.cpp File Reference

Functions
int	dataindex (int i, int j, int k, const int *ndata)
double	ionmodel (GTime t, const double *ion, const VectorPos &pos, const AzEl &azel)
double	ionmapf (const VectorPos &pos, const AzEl &azel, E_IonoMapFn mapFn, double hion)
	ionosphere mapping function
double	ionppp (const VectorPos &pos, const AzEl &azel, double re, double hion, VectorPos &posp)
int	interpTec (const TEC &tec, int k, const VectorPos &posp, double &value, double &rms)
	interpolate tec grid data
bool	ionDelay (GTime time, const TEC &tec, const VectorPos &pos, const AzEl &azel, E_IonoMapFn mapFn, double layerHeight, E_IonoFrame frame, double &delay, double &var)
	ionosphere delay by tec grid data
bool	iontec (GTime time, const Navigation *nav, const VectorPos &pos, const AzEl &azel, E_IonoMapFn mapFn, double layerHeight, E_IonoFrame frame, double &delay, double &var)
	ionosphere model by tec grid data Before calling the function, read tec grid data by calling readTec() return ok with delay=0 and var=VAR_NOTEC if el < MIN_EL or h < MIN_HGT
bool	ionoModel (GTime &time, VectorPos &pos, AzEl &azel, E_IonoMapFn mapFn, E_IonoMode mode, double layerHeight, double ionoState, double &dion, double &var)
	ionospheric model

Function Documentation

dataindex()

int dataindex	(	int	i,
		int	j,
		int	k,
		const int *	ndata )

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interpTec()

int interpTec	(	const TEC &	tec,
		int	k,
		const VectorPos &	posp,
		double &	value,
		double &	rms )

interpolate tec grid data

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ionDelay()

bool ionDelay	(	GTime	time,
		const TEC &	tec,
		const VectorPos &	pos,
		const AzEl &	azel,
		E_IonoMapFn	mapFn,
		double	layerHeight,
		E_IonoFrame	frame,
		double &	delay,
		double &	var )

ionosphere delay by tec grid data

Parameters

time	Time
tec	Input electron content data
pos	Position of receiver
azel	Azimuth and elevation of signal path
mapFn	model of mapping function
layerHeight	Mapping function layer height
frame	reference frame
delay	Delay in meters
var	Variance

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ionmapf()

double ionmapf	(	const VectorPos &	pos,
		const AzEl &	azel,
		E_IonoMapFn	mapFn,
		double	hion )

ionosphere mapping function

Parameters

pos	receiver position in geocentric spherical coordinates
azel	satellite azimuth/elevation angle (rad)
mapFn	model of mapping function
hion	layer height (km)

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ionmodel()

double ionmodel	(	GTime	t,
		const double *	ion,
		const VectorPos &	pos,
		const AzEl &	azel )

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ionoModel()

bool ionoModel	(	GTime &	time,
		VectorPos &	pos,
		AzEl &	azel,
		E_IonoMapFn	mapFn,
		E_IonoMode	mode,
		double	layerHeight,
		double	ionoState,
		double &	dion,
		double &	var )

ionospheric model

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ionppp()

double ionppp	(	const VectorPos &	pos,
		const AzEl &	azel,
		double	re,
		double	hion,
		VectorPos &	posp )

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iontec()

bool iontec	(	GTime	time,
		const Navigation *	nav,
		const VectorPos &	pos,
		const AzEl &	azel,
		E_IonoMapFn	mapFn,
		double	layerHeight,
		E_IonoFrame	frame,
		double &	delay,
		double &	var )

ionosphere model by tec grid data Before calling the function, read tec grid data by calling readTec() return ok with delay=0 and var=VAR_NOTEC if el < MIN_EL or h < MIN_HGT

Parameters

time	time (gpst)
nav	navigation data
pos	receiver position {lat,lon,h} (rad,m)
azel	azimuth/elevation angle {az,el} (rad)
mapFn	model of mapping function
layerHeight	Mapping function layer height
frame	reference frame
delay	ionospheric delay (L1) (m)
var	ionospheric dealy (L1) variance (m^2)

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