mrtk_ionex.h File Reference

MRTKLIB IONEX Module — IONEX ionospheric TEC map I/O and interpolation. More...

#include "mrtklib/mrtk_nav.h"
#include "mrtklib/mrtk_time.h"

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Functions
void	readtec (const char *file, nav_t *nav, int opt)
	Read IONEX ionospheric TEC grid file.
int	iontec (gtime_t time, const nav_t *nav, const double *pos, const double *azel, int opt, double *delay, double *var)
	Compute ionospheric delay by TEC grid data.

Detailed Description

MRTKLIB IONEX Module — IONEX ionospheric TEC map I/O and interpolation.

This header declares the IONEX-related functions extracted from rtklib.h with zero algorithmic changes.

Note

Functions declared here are implemented in mrtk_ionex.c.

Definition in file mrtk_ionex.h.

Function Documentation

iontec()

int iontec	(	gtime_t	time,
		const nav_t *	nav,
		const double *	pos,
		const double *	azel,
		int	opt,
		double *	delay,
		double *	var )

Compute ionospheric delay by TEC grid data.

Parameters

[in]	time	Time (GPST)
[in]	nav	Navigation data (with TEC grid)
[in]	pos	Receiver position {lat,lon,h} (rad,m)
[in]	azel	Azimuth/elevation angle {az,el} (rad)
[in]	opt	Model option (bit 0: 0=E-layer, 1=F2-layer; bit 1: 0=single-layer, 1=modified single-layer)
[out]	delay	Ionospheric delay (L1) (m)
[out]	var	Ionospheric delay variance (L1) (m^2)

Returns

Status (1:ok, 0:error)

Definition at line 481 of file mrtk_ionex.c.

References iondelay(), MIN_EL, MIN_HGT, nav_s::nt, R2D, nav_s::tec, tec_t::time, time_str(), timediff(), trace(), and VAR_NOTEC.

Referenced by ionocorr().

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readtec()

void readtec	(	const char *	file,
		nav_t *	nav,
		int	opt )

Read IONEX ionospheric TEC grid file.

Parameters

[in]	file	IONEX TEC grid file path (wild-card * expanded)
[in,out]	nav	Navigation data (tec grid data appended)
[in]	opt	Read option (1: no clear of old TEC data, 0: clear)

Definition at line 301 of file mrtk_ionex.c.

References nav_s::cbias, CLIGHT, combtec(), expath(), free, malloc, MAXEXFILE, MAXSAT, nav_s::nt, nav_s::ntmax, readionexb(), readionexh(), nav_s::tec, and trace().

Referenced by execses().

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