Last update time ：2022-04-20

data structure

prcopt_t Processing options

Parameters	explain	default setting
int mode	Positioning mode	PMODE_STATIC
int soltype	Solution types (0: forward ,1: backward ,2: Combine )	0
int nf	Frequency number (1:L1,2:L1+L2,3:L1+L2+L5)	2
int navsys	Navigation system , If there are more than one, the macro definition of the system will be defined directly | operation	SYS_CMP | SYS_GPS
double elmin	Elevation mask angle	7.0*D2R
snrmask_t snrmask	SNR mask	{ { 0,0 } },
int sateph	Almanac Data / The clock (EPHOPT_???)	0
int modear	AR Pattern 0:off,1:continuous,2:instantaneous,3:fix and hold,4:ppp-ar)	3
int glomodear	GLONASS AR mode (0:off,1:on,2:auto cal,3:ext cal)	0
int bdsmodear	BeiDou AR mode (0:off,1:on)	1
int maxout	obs Interrupt the count to reset the deviation	5
int minlock	Minimum lock count to fix ambiguity	0
int minfix	Minimum repair count to maintain ambiguity	10
int armaxiter	Maximum iteration to resolve ambiguity	1
int ionoopt	Ionospheric options (IONOOPT_???)	0
int tropopt	Tropospheric options (TROPOPT_???) */	0
int dynamics	The kinetic model (0:none,1:velociy,2:accel) */	0
int tidecorr	Earth tide correction (0:off,1:solid,2:solid+otl+pole)	0
int niter	Filter iterations	1
int codesmooth	Code smoothing window size (0:none)	0
int intpref	Insert reference obs（ For later tasks ）	0
int sbascorr	SBAS Correction options	0
int sbassatsel	SBAS Satellite selection (0:all)	0
int rovpos	Mobile station location in fixed mode	0
int refpos	The basic position of the relative pattern 0:pos in prcopt, 1:average of single pos 2:read from file, 3:rinex header, 4:rtcm pos)	4
double eratio[NFREQ]	code / Phase error rate	{100.0,100.0}
double err[5]	Measurement error factor [0]: Retain [1-3]: phase (m) Error factor a/b/c [4]: Doppler frequency (hz)	{ 100.0,0.003,0.003,0.0,1.0 }
double std[3]	The initial state [0]bias,[1]iono [2]trop	{ 30.0,0.03,0.3 }
double prn[6]	Process noise std [0]bias,[1]iono [2]trop [3]acch [4]accv [5] pos */	{ 1E-4,1E-3,1E-4,1E-1,1E-2,0.0 }
double sclkstab	Satellite clock stability （ second / second ）	5E-12
double thresar[8]	AR Verify the threshold	{ 5.0,0.9999,0.25,0.1,0.05 }
double elmaskar	Ascending satellite AR Elevation mask (deg)	0.0
double elmaskhold	Mask highly to maintain ambiguity （deg）	0.0
double thresslip	No geometric phase slip threshold (m)	0.05
double maxtdiff	Maximum time difference （ second ）	30.0
double maxinno	Reject innovation threshold (m)	30.0
double maxgdop	Refuse gdop The threshold of	30.0
double baseline[2]	Baseline length constraint {const,sigma} (m)	{ 0 }
double ru[3]	Fixed mode {x,y,z} (ecef) (m) Location of mobile station	{ 0 }
double rb[3]	The relative pattern {x,y,z} (ecef) (m) Basic position of	{ 2005046.4452 ,5411158.3826 ,2707856.6022 }
char anttype[2][MAXANT]	Antenna type {rover,base}	{ “”,“” }
double antdel[2][3]	Antenna increment { {rov_e,rov_n,rov_u},{ref_e,ref_n,ref_u}}	{ { 0 } }
pcv_t pcvr[2]	Receiver antenna parameters {rov,base} */	{ { 0 } }
unsigned char exsats[MAXSAT]	Excluded satellites (1:excluded,2:included) */	{ 0 }
int maxaveep	Maximum average period
int initrst	Initialize by restarting
int outsingle	adopt dgps/float/fix/ppp Interrupt output single
char rnxopt[2][256]	rinex Options {rover,base} */
int posopt[6]	Positioning options
int syncsol	Solution synchronization mode
double odisp[2][6*11]	Ocean tide loading parameters {rov,base} */{rov,base} */
exterr_t exterr	Extended receiver error model
int freqopt	Ban L2-AR
char pppopt[256]	ppp Options

solopt_t

Parameters	explain	default setting
int posf	Solution format (SOLF_???)
int times	Time system (TIMES_???)
int timef	Time format (0:sssss.s,1:yyyy/mm/dd hh:mm:ss.s)
int timeu	The number of times after the decimal point
int degf	latitude / Longitude format (0:ddd.ddd,1:ddd mm ss)
int outhead	Output head （0： no ,1： yes ）
int outopt	Output processing options （0： no ,1： yes ）
int outvel	Output speed options （0： no ,1： yes ）
int datum	data （0：WGS84,1： Tokyo ）
int height	Height （0： ellipsoid ,1： Geodesic line ）
int geoid	Geoid model （0：EGM96,1：JGD2000）
int solstatic	The solution of static mode (0:all,1:single)
int sstat	Solution statistical level （0： close ,1： state ,2： residual ）
int trace	Debug trace level （0： close ,1-5： debugging ）
double nmeaintv[2]	nmea Output interval (<0:no,0:all) nmeaintv[0]:gprmc,gpgga,nmeaintv[1]:gpgsv
char sep[64]	Field separator
char prog[64]	Program name
double maxsolstd	Maximum standard deviation of solution output (m) (0:all)

filopt_t

#define MAXSTRPATH 1024 /* max length of stream path */

char satantp [MAXSTRPATH]	Satellite antenna parameter file
char rcvantp [MAXSTRPATH]	Receiver antenna parameter file
char stapos [MAXSTRPATH]	Station file
char geoid [MAXSTRPATH]	External geoid data file
char iono [MAXSTRPATH]	Ionospheric data file
char dcb [MAXSTRPATH]	dcb Data files
char eop [MAXSTRPATH]	eop Data files
char blq [MAXSTRPATH]	Tide loading blq file
char tempdir [MAXSTRPATH]	ftp/http Temporary directory
char geexe [MAXSTRPATH]	Google Earth executive file
char solstat [MAXSTRPATH]	Solution statistics file
char trace [MAXSTRPATH]	Debug trace file

Post positioning ：postpos

postpos The function prototype ：

extern int postpos(gtime_t ts, gtime_t te, double ti, double tu,

​ const prcopt_t *popt, const solopt_t *sopt,

​ const filopt_t *fopt, char **infile, int n, char *outfile,

​ const char *rov, const char *base)

gtime_t ts	Processing start time , If 0 Means unlimited
gtime_t te	Processing end time , If 0 Means unlimited
double ti	Processing interval (s)
double tu	Processing unit time (s)
prcopt_t *popt	Processing options
solopt_t *sopt	Solution options
filopt_t *fopt	file option
char **infile	Input file
int n	Enter the number of files
char *outfile	The output file
char *rov	Mobile station ID list , use ”” Separate
char *base	The base station ID list , use ”” Separate

return ： state (0:ok,0>:error,1:aborted)

* Be careful ： The input file should contain observation data 、 Navigation data 、 The precise

* Ephemeris / The clock （ Optional ）,sbas Log files （ Optional ）,ssr Information （ Optional ）.

* Log files （ Optional ） And tech grid files （ Optional ）.

* The first observation data file in the input file is considered to be the data of the mobile station .

* The type of input file is recognized by the file extension

* The type of input file is identified by the file extension , As follows .

* .sp3, .SP3, .eph*, .EPH*： Precise ephemeris （sp3c）.

* .sbs,.SBS,.ems,.EMS : sbas Message log file （rtklib or ems）

* .lex,.LEX : qzss lex Message log file

* .rtcm3,.RTCM3 : ssr Message log file (rtcm3)

* .*i,.*I : tec Grid files (ionex)

* .FCB,.FCB : satellite FCB

* other ：Rinex Observation point 、 Navigation 、 grid 、 Xi Wang 、Q Net or clock

openses function ： Preprocessing

static int openses(const prcopt_t *popt, const solopt_t *sopt,const filopt_t *fopt, nav_t *nav, pcvs_t *pcvs, pcvs_t *pcvr)

https://blog.csdn.net/wuwuku123/article/details/106068946

Purpose ： By reading the filopt_t fopt Parameters in , among filopt_t The structure is defined as follows , Realize to ‘ File reading ’, The read subfunction is openses！

execses_b

https://blog.csdn.net/wuwuku123/article/details/106068946

Purpose ： By reading the filopt_t fopt Parameters in , among filopt_t The structure is defined as follows , Realize to ‘ File reading ’, The read subfunction is openses！

execses_b

Processing base station