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Added functionality for Graves data

pull/10/head
Cees Bassa 2018-04-30 17:02:03 +02:00
parent 67ceca11f7
commit c1a53a6cd9
1 changed files with 32 additions and 7 deletions
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39
rffit.c
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@ -40,7 +40,7 @@ struct data {
} d;
orbit_t orb;
int fgetline(FILE *file,char *s,int lim);
struct data read_data(char *filename);
struct data read_data(char *filename,int graves,float offset);
double date2mjd(int year,int month,double day);
void mjd2nfd(double mjd,char *nfd);
struct point decode_line(char *line);
@ -271,6 +271,15 @@ void usage()
{
printf("dpplot -d <data file> -c [tle catalog] -i [satno] -h\n\ndata file: Tabulated doppler curve\ntle catalog: Catalog with TLE's (optional)\nsatno: Satellite to load from TLE catalog (optional)\n\n");
printf("rffit: fit RF observations\n\n");
printf("-d <datafile> Input data file with RF measurements\n");
printf("-c <catalog> Catalog with TLE's [optional]\n");
printf("-i <satno> NORAD ID of satellite to load\n");
printf("-s <site> Site ID\n");
printf("-g GRAVES data\n");
printf("-m <offset> Frequency offset to apply [Hz]\n");
printf("-h This help\n");
return;
}
@ -284,7 +293,7 @@ int main(int argc,char *argv[])
float xminsel,xmaxsel,yminsel,ymaxsel;
float x0,y0,x,y;
double mjd,v,v1,azi,alt,rms=0.0,day,mjdtca=56658.0,altmin=0.0;
float t,f,vtca;
float t,f,vtca,foffset=0.0;
char c,nfd[32]="2014-01-01T00:00:00";
int mode=0,posn=0,click=0;
char *catalog,*datafile,filename[64],string[64],bstar[10]=" 00000-0";
@ -308,7 +317,7 @@ int main(int argc,char *argv[])
env=getenv("ST_DATADIR");
// Decode options
while ((arg=getopt(argc,argv,"d:c:i:hs:g"))!=-1) {
while ((arg=getopt(argc,argv,"d:c:i:hs:gm:"))!=-1) {
switch(arg) {
case 'd':
datafile=optarg;
@ -327,6 +336,10 @@ int main(int argc,char *argv[])
return 0;
break;
case 'm':
foffset=atof(optarg)/1000.0;
break;
case 's':
site_id=atoi(optarg);
break;
@ -342,7 +355,7 @@ int main(int argc,char *argv[])
}
// Read data
d=read_data(datafile);
d=read_data(datafile,graves,foffset);
d.fitfreq=1;
// Set graves frequency
@ -730,8 +743,13 @@ int main(int argc,char *argv[])
// Identify
if (c=='i') {
printf("rms limit (kHz): ");
status=scanf("%lf",&rms);
if (graves==0) {
printf("rms limit (kHz): ");
status=scanf("%lf",&rms);
} else {
printf("Using 0.1 kHz rms limit\n");
rms=0.1;
}
satno=identify_satellite_from_doppler(catalog,rms);
if (satno>0) {
redraw=1;
@ -1101,13 +1119,14 @@ struct point decode_line(char *line)
}
// Read data
struct data read_data(char *filename)
struct data read_data(char *filename,int graves,float offset)
{
int i=0;
char line[LIM];
FILE *file;
struct data d;
double c;
float sum,ssum,w,df;
// Open file
file=fopen(filename,"r");
@ -1135,6 +1154,10 @@ struct data read_data(char *filename)
// Close file
fclose(file);
// Add frequency offset
for (i=0;i<d.n;i++)
d.p[i].freq+=offset;
d.mjdmin=d.mjdmax=d.p[0].mjd;
d.freqmin=d.freqmax=d.p[0].freq;
d.fluxmin=d.fluxmax=d.p[0].flux;
@ -1161,6 +1184,8 @@ struct data read_data(char *filename)
// Center time and frequency
d.mjd0=floor(0.5*(d.mjdmax+d.mjdmin));
d.f0=floor(0.5*(d.freqmax+d.freqmin));
if (graves==1)
d.f0=143050.0;
// Compute times
for (i=0;i<d.n;i++) {