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Add time overwrite option

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This commit is contained in:
OSQZSS 2016-07-31 11:48:13 +09:00
parent fe5fd36811
commit 98b54fb813
1 changed files with 89 additions and 11 deletions
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100
gpssim.c
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@ -200,6 +200,25 @@ void date2gps(const datetime_t *t, gpstime_t *g)
return;
}
void gps2date(const gpstime_t *g, datetime_t *t)
{
// Convert Julian day number to calendar date
int c = (int)(7*g->week + floor(g->sec/86400.0)+2444245.0) + 1537;
int d = (int)((c-122.1)/365.25);
int e = 365*d + d/4;
int f = (int)((c-e)/30.6001);
t->d = c - e - (int)(30.6001*f);
t->m = f - 1 - 12*(f/14);
t->y = d - 4715 - ((7 + t->m)/10);
t->hh = ((int)(g->sec/3600.0))%24;
t->mm = ((int)(g->sec/60.0))%60;
t->sec = g->sec - 60.0*floor(g->sec/60.0);
return;
}
/*! \brief Convert Earth-centered Earth-fixed (ECEF) into Lat/Long/Heighth
* \param[in] xyz Input Array of X, Y and Z ECEF coordinates
* \param[out] llh Output Array of Latitude, Longitude and Height
@ -717,6 +736,28 @@ double subGpsTime(gpstime_t g1, gpstime_t g0)
return(dt);
}
gpstime_t incGpsTime(gpstime_t g0, double dt)
{
gpstime_t g1;
g1.week = g0.week;
g1.sec = g0.sec + dt;
while (g1.sec>SECONDS_IN_WEEK)
{
g1.sec -= SECONDS_IN_WEEK;
g1.week++;
}
while (g1.sec<0.0)
{
g1.sec += SECONDS_IN_WEEK;
g1.week--;
}
return(g1);
}
/*! \brief Read Ephemersi data from the RINEX Navigation file */
/* \param[out] eph Array of Output SV ephemeris data
* \param[in] fname File name of the RINEX file
@ -1377,6 +1418,7 @@ void usage(void)
" -g <nmea_gga> NMEA GGA stream (dynamic mode)\n"
" -l <location> Lat,Lon,Hgt (static mode) e.g. 30.286502,120.032669,100\n"
" -t <date,time> Scenario start time YYYY/MM/DD,hh:mm:ss\n"
" -T <date,time> Overwrite TOC and TOE to scenario start time\n"
" -d <duration> Duration [sec] (max: %.0f)\n"
" -o <output> I/Q sampling data file (default: gpssim.bin)\n"
" -s <frequency> Sampling frequency [Hz] (default: 2600000)\n"
@ -1445,6 +1487,8 @@ int main(int argc, char *argv[])
int iduration;
int verb;
int timeoverwrite = FALSE; // Overwirte the TOC and TOE in the RINEX file
////////////////////////////////////////////////////////////
// Read options
////////////////////////////////////////////////////////////
@ -1465,7 +1509,7 @@ int main(int argc, char *argv[])
exit(1);
}
while ((result=getopt(argc,argv,"e:u:g:l:o:s:b:t:d:v"))!=-1)
while ((result=getopt(argc,argv,"e:u:g:l:o:s:b:T:t:d:v"))!=-1)
{
switch (result)
{
@ -1507,6 +1551,8 @@ int main(int argc, char *argv[])
exit(1);
}
break;
case 'T':
timeoverwrite = TRUE;
case 't':
sscanf(optarg, "%d/%d/%d,%d:%d:%lf", &t0.y, &t0.m, &t0.d, &t0.hh, &t0.mm, &t0.sec);
if (t0.y<=1980 || t0.m<1 || t0.m>12 || t0.d<1 || t0.d>31 ||
@ -1638,18 +1684,50 @@ int main(int argc, char *argv[])
}
}
if (g0.week>=0)
if (g0.week>=0) // Scenario start time has been set.
{
if (subGpsTime(g0, gmin)<0.0 || subGpsTime(gmax, g0)<0.0)
if (timeoverwrite==TRUE)
{
printf("ERROR: Invalid start time.\n");
printf("tmin = %4d/%02d/%02d,%02d:%02d:%02.0f (%d:%.0f)\n",
tmin.y, tmin.m, tmin.d, tmin.hh, tmin.mm, tmin.sec,
gmin.week, gmin.sec);
printf("tmax = %4d/%02d/%02d,%02d:%02d:%02.0f (%d:%.0f)\n",
tmax.y, tmax.m, tmax.d, tmax.hh, tmax.mm, tmax.sec,
gmax.week, gmax.sec);
exit(1);
gpstime_t gtmp;
datetime_t ttmp;
double dsec;
gtmp.week = g0.week;
gtmp.sec = (double)(((int)(g0.sec))/7200)*7200.0;
dsec = subGpsTime(gtmp,gmin);
// Overwrite the TOC and TOE to the scenario start time
for (sv=0; sv<MAX_SAT; sv++)
{
for (i=0; i<neph; i++)
{
if (eph[i][sv].vflg == 1)
{
gtmp = incGpsTime(eph[i][sv].toc, dsec);
gps2date(&gtmp,&ttmp);
eph[i][sv].toc = gtmp;
eph[i][sv].t = ttmp;
gtmp = incGpsTime(eph[i][sv].toe, dsec);
eph[i][sv].toe = gtmp;
}
}
}
}
else
{
if (subGpsTime(g0, gmin)<0.0 || subGpsTime(gmax, g0)<0.0)
{
printf("ERROR: Invalid start time.\n");
printf("tmin = %4d/%02d/%02d,%02d:%02d:%02.0f (%d:%.0f)\n",
tmin.y, tmin.m, tmin.d, tmin.hh, tmin.mm, tmin.sec,
gmin.week, gmin.sec);
printf("tmax = %4d/%02d/%02d,%02d:%02d:%02.0f (%d:%.0f)\n",
tmax.y, tmax.m, tmax.d, tmax.hh, tmax.mm, tmax.sec,
gmax.week, gmax.sec);
exit(1);
}
}
}
else