mrtk_clas_isb.c File Reference

ISB (inter-system bias) and L2C phase shift corrections. More...

#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mrtklib/mrtk_clas.h"
#include "mrtklib/mrtk_const.h"
#include "mrtklib/mrtk_foundation.h"
#include "mrtklib/mrtk_nav.h"
#include "mrtklib/mrtk_obs.h"
#include "mrtklib/mrtk_opt.h"
#include "mrtklib/mrtk_sys.h"
#include "mrtklib/mrtk_trace.h"

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Macros
#define	NINCISB   256 /* ISB data realloc increment */

Functions
static void	setstr (char *dst, const char *src, int n)
static int	code2sys (char code)
static int	sys2isbidx (int sys)
static void	chop_isb (char *str)
static int	addisbdata (nav_t *nav, const isb_t *data)
static int	readisbf (const char *file, nav_t *nav)
int	readisb (const char *file, nav_t *nav)
	Read ISB correction table from file.
void	setisb (const nav_t *nav, const char *rectype0, const char *rectype1, sta_t *sta0, sta_t *sta1)
	Set ISB corrections for rover and reference stations.
void	chk_isb (int sysno, const prcopt_t *opt, const sta_t *sta, double y[5][2])
	Get ISB correction values for a satellite system.
static void	trim_str (char *str)
int	readL2C (const char *file, nav_t *nav)
	Read L2C 1/4 cycle phase shift table from file.
int	isL2C (int code)
	Check if observation code is L2C.

Detailed Description

ISB (inter-system bias) and L2C phase shift corrections.

References: [1] claslib (https://github.com/mf-arai/claslib) — upstream isb.c

Notes:

• Ported from upstream claslib isb.c with minimal changes.
• ISB corrects inter-system receiver biases between GPS/GLO/GAL/QZS.
• L2C corrects 1/4 cycle phase shift on certain GPS L2C satellites.

Definition in file mrtk_clas_isb.c.

Macro Definition Documentation

NINCISB

#define NINCISB   256 /* ISB data realloc increment */

Definition at line 41 of file mrtk_clas_isb.c.

Referenced by addisbdata().

Function Documentation

addisbdata()

int addisbdata ( nav_t * nav, const isb_t * data )

static

Definition at line 130 of file mrtk_clas_isb.c.

References free, nav_s::isb, nav_s::ni, nav_s::nimax, NINCISB, and trace().

Referenced by readisbf().

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chk_isb()

void chk_isb ( int sysno, const prcopt_t * opt, const sta_t * sta, double y[5][2] )

extern

Get ISB correction values for a satellite system.

Parameters

[in]	sysno	Satellite system code (SYS_GPS, etc.)
[in]	opt	Processing options
[in]	sta	Station data with ISB values
[out]	y	ISB corrections [NFREQ][2] (0:phase, 1:code) (m)

Definition at line 451 of file mrtk_clas_isb.c.

References prcopt_t::isb, sta_t::isb, ISBOPT_TABLE, and sys2isbidx().

Referenced by clas_osr_zdres().

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chop_isb()

void chop_isb ( char * str )

static

Definition at line 119 of file mrtk_clas_isb.c.

Referenced by readisbf().

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code2sys()

int code2sys ( char code )

static

Definition at line 71 of file mrtk_clas_isb.c.

References SYS_CMP, SYS_GAL, SYS_GLO, SYS_GPS, SYS_NONE, and SYS_QZS.

Referenced by readisbf().

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isL2C()

int isL2C ( int code )

extern

Check if observation code is L2C.

Parameters

[in]

code

Observation code (CODE_???)

Returns

1 if L2C, 0 otherwise

Definition at line 546 of file mrtk_clas_isb.c.

References CODE_L2L, CODE_L2S, and CODE_L2X.

Referenced by clas_osr_zdres(), and zdres().

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readisb()

int readisb ( const char * file, nav_t * nav )

extern

Read ISB correction table from file.

Parameters

[in]	file	ISB table file path (wild-card * expanded)
[in,out]	nav	Navigation data (isb array populated)

Returns

Status (1:ok, 0:error)

Definition at line 308 of file mrtk_clas_isb.c.

References expath(), free, malloc, MAXEXFILE, nav_s::ni, nav_s::nimax, readisbf(), and trace().

Referenced by execses().

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readisbf()

int readisbf ( const char * file, nav_t * nav )

static

Definition at line 153 of file mrtk_clas_isb.c.

References addisbdata(), chop_isb(), CLIGHT, code2sys(), isb_t::gsb, nav_s::isb, nav_s::ni, setstr(), isb_t::sta_name, isb_t::sta_name_base, str2num(), sys2isbidx(), and trace().

Referenced by readisb().

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readL2C()

int readL2C ( const char * file, nav_t * nav )

extern

Read L2C 1/4 cycle phase shift table from file.

Parameters

[in]	file	L2C phase shift table file path
[in,out]	nav	Navigation data (sfts populated)

Returns

Status (0:ok, -1:error)

Definition at line 489 of file mrtk_clas_isb.c.

References sft_t::bias, MAXRECTYP, sft_t::n, PHASE_CYCLE, sft_t::rectyp, nav_s::sfts, str2num(), trace(), and trim_str().

Referenced by execses().

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setisb()

void setisb ( const nav_t * nav, const char * rectype0, const char * rectype1, sta_t * sta0, sta_t * sta1 )

extern

Set ISB corrections for rover and reference stations.

Parameters

[in]	nav	Navigation data (contains isb table)
[in]	rectype0	Rover receiver type
[in]	rectype1	Reference receiver type
[out]	sta0	Rover station (isb field populated)
[out]	sta1	Reference station (isb field populated, can be NULL)

Definition at line 340 of file mrtk_clas_isb.c.

References isb_t::gsb, nav_s::isb, sta_t::isb, nav_s::ni, NSYS, isb_t::sta_name, isb_t::sta_name_base, and trace().

Referenced by execses().

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setstr()

void setstr ( char * dst, const char * src, int n )

static

Definition at line 49 of file mrtk_clas_isb.c.

Referenced by readisbf().

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sys2isbidx()

int sys2isbidx ( int sys )

static

Definition at line 94 of file mrtk_clas_isb.c.

References NSYSCMP, NSYSGAL, NSYSGLO, NSYSGPS, NSYSQZS, SYS_CMP, SYS_GAL, SYS_GLO, SYS_GPS, and SYS_QZS.

Referenced by chk_isb(), and readisbf().

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trim_str()

void trim_str ( char * str )

static

Definition at line 476 of file mrtk_clas_isb.c.

Referenced by readL2C().

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