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Sigindex common2 #502

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Sigindex common2 #502

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47b4459
Index signal specific data using the signal code
ourairquality Sep 21, 2024
ea9c05e
rtcm3: implement lock time slip checking
ourairquality Sep 24, 2024
49aa5be
sigindex: common function to resolve the frequence index
ourairquality Sep 29, 2024
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152 changes: 84 additions & 68 deletions src/convrnx.c
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Original file line number Diff line number Diff line change
Expand Up @@ -82,8 +82,8 @@ typedef struct { /* stream file type */
raw_t raw; /* input receiver raw data */
rnxctr_t rnx; /* input RINEX control data */
stas_t *stas; /* station list */
uint8_t slips [MAXSAT][NFREQ+NEXOBS]; /* cycle slip flag cache */
halfc_t *halfc[MAXSAT][NFREQ+NEXOBS]; /* half-cycle ambiguity list */
uint8_t slips [MAXSAT][MAXCODE]; /* cycle slip flag cache */
halfc_t *halfc[MAXSAT][MAXCODE]; /* half-cycle ambiguity list */
FILE *fp; /* output file pointer */
} strfile_t;

Expand Down Expand Up @@ -147,7 +147,6 @@ static strfile_t *gen_strfile(int format, const char *opt)
{
strfile_t *str;
gtime_t time0={0};
int i,j;

trace(3,"init_strfile:\n");

Expand Down Expand Up @@ -200,9 +199,10 @@ static strfile_t *gen_strfile(int format, const char *opt)
}

str->stas=NULL;
for (i=0;i<MAXSAT;i++) for (j=0;j<NFREQ+NEXOBS;j++) {
str->slips[i][j]=0;
str->halfc[i][j]=NULL;
for (int i=0;i<MAXSAT;i++)
for (int code=0;code<MAXCODE;code++) {
str->slips[i][code]=0;
str->halfc[i][code]=NULL;
}
str->fp=NULL;
return str;
Expand All @@ -212,7 +212,6 @@ static void free_strfile(strfile_t *str)
{
stas_t *sp,*sp_next;
halfc_t *hp,*hp_next;
int i,j;

trace(3,"free_strfile:\n");

Expand All @@ -229,8 +228,9 @@ static void free_strfile(strfile_t *str)
sp_next=sp->next;
free(sp);
}
for (i=0;i<MAXSAT;i++) for (j=0;j<NFREQ+NEXOBS;j++) {
for (hp=str->halfc[i][j];hp;hp=hp_next) {
for (int i=0;i<MAXSAT;i++)
for (int code=0;code<MAXCODE;code++) {
for (hp=str->halfc[i][code];hp;hp=hp_next) {
hp_next=hp->next;
free(hp);
}
Expand Down Expand Up @@ -624,15 +624,15 @@ static void dump_stas(const strfile_t *str)
#endif
}
/* add half-cycle ambiguity list ---------------------------------------------*/
static int add_halfc(strfile_t *str, int sat, int idx, gtime_t time)
static int add_halfc(strfile_t *str, int sat, int code, gtime_t time)
{
halfc_t *p;

if (!(p=(halfc_t *)calloc(sizeof(halfc_t),1))) return 0;
p->ts=p->te=time;
p->stat=0;
p->next=str->halfc[sat-1][idx];
str->halfc[sat-1][idx]=p;
p->next=str->halfc[sat-1][code];
str->halfc[sat-1][code]=p;
return 1;
}
/* update half-cycle ambiguity -----------------------------------------------*/
Expand All @@ -643,56 +643,59 @@ static void update_halfc(strfile_t *str, obsd_t *obs)
for (i=0;i<NFREQ+NEXOBS;i++) {
if (obs->L[i]==0.0) continue;

int code = obs->code[i];
if (code == CODE_NONE) continue;

/* if no list, start list */
if (!str->halfc[sat-1][i]) {
if (!add_halfc(str,sat,i,obs->time)) continue;
if (!str->halfc[sat-1][code]) {
if (!add_halfc(str,sat,code,obs->time)) continue;
}
/* reset list if true cycle slip */
if ((obs->LLI[i]&LLI_SLIP)&&!(obs->LLI[i]&(LLI_HALFA|LLI_HALFS))) {
str->halfc[sat-1][i]->stat=0;
str->halfc[sat-1][code]->stat=0;
}
if (obs->LLI[i]&LLI_HALFC) { /* halfcyc unresolved */
/* if new list, set unresolved start epoch */
if (str->halfc[sat-1][i]->stat==0) {
str->halfc[sat-1][i]->ts=obs->time;
if (str->halfc[sat-1][code]->stat==0) {
str->halfc[sat-1][code]->ts=obs->time;
}
/* update unresolved end epoch and set status to active */
str->halfc[sat-1][i]->te=obs->time;
str->halfc[sat-1][i]->stat=1;
str->halfc[sat-1][code]->te=obs->time;
str->halfc[sat-1][code]->stat=1;
} /* else if resolved, update status */
else if (str->halfc[sat-1][i]->stat==1) {
else if (str->halfc[sat-1][code]->stat==1) {
if (obs->LLI[i]&LLI_HALFA) {
str->halfc[sat-1][i]->stat=2; /* resolved with add */
str->halfc[sat-1][code]->stat=2; /* resolved with add */
}
else if (obs->LLI[i]&LLI_HALFS) {
str->halfc[sat-1][i]->stat=3; /* resolved with subtract */
str->halfc[sat-1][code]->stat=3; /* resolved with subtract */
}
else {
str->halfc[sat-1][i]->stat=4; /* resolved with no adjust */
str->halfc[sat-1][code]->stat=4; /* resolved with no adjust */
}
/* create new list entry */
if (!add_halfc(str,sat,i,obs->time)) continue;
if (!add_halfc(str,sat,code,obs->time)) continue;
}
}
}
/* dump half-cycle ambiguity list --------------------------------------------*/
static void dump_halfc(const strfile_t *str)
{
#if 0 /* for debug */
halfc_t *p;
char s0[32],s1[32],s2[32],*stats[]={"ADD","SUB","NON"};
int i,j;

#ifdef RTK_DISABLED /* for debug */
trace(2,"# HALF-CYCLE AMBIGUITY CORRECTIONS\n");
trace(2,"# %20s %22s %4s %3s %3s\n","START","END","SAT","FRQ","COR");

for (i=0;i<MAXSAT;i++) for (j=0;j<NFREQ+NEXOBS;j++) {
for (p=str->halfc[i][j];p;p=p->next) {
for (int i=0;i<MAXSAT;i++)
for (int code=0;code<MAXCODE;code++) {
const char *obs=code2obs(code);
for (halfc_t *p=str->halfc[i][code];p;p=p->next) {
if (p->stat<=1) continue;
char s0[8],s1[40],s2[40];
satno2id(i+1,s0);
time2str(p->ts,s1,2);
time2str(p->te,s2,2);
trace(2,"%s %s %4s %3d %3s\n",s1,s2,s0,j+1,stats[p->stat-2]);
const char *stats[]={"ADD","SUB","NON"};
trace(2,"%s %s %4s %2s %3s\n",s1,s2,s0,obs,stats[p->stat-2]);
}
}
#endif
Expand All @@ -701,15 +704,16 @@ static void dump_halfc(const strfile_t *str)
static void resolve_halfc(const strfile_t *str, obsd_t *data, int n)
{
halfc_t *p;
int i,j,sat;
int sat;

for (i=0;i<n;i++) for (j=0;j<NFREQ+NEXOBS;j++) {
for (int i=0;i<n;i++) {
sat=data[i].sat;

for (p=str->halfc[sat-1][j];p;p=p->next) {
if (p->stat<=1) continue; /* unresolved half cycle */
if (timediff(data[i].time,p->ts)<-DTTOL||
timediff(data[i].time,p->te)> DTTOL) continue;
for (int j=0;j<NFREQ+NEXOBS;j++) {
int code = data[i].code[j];
for (p=str->halfc[sat-1][code];p;p=p->next) {
if (p->stat<=1) continue; /* unresolved half cycle */
if (timediff(data[i].time,p->ts)<-DTTOL||
timediff(data[i].time,p->te)> DTTOL) continue;

if (p->stat==2) { /* add half cycle */
data[i].L[j]+=0.5;
Expand All @@ -720,6 +724,7 @@ static void resolve_halfc(const strfile_t *str, obsd_t *data, int n)
data[i].LLI[j]&=~LLI_HALFC;
}
data[i].LLI[j]&=~(LLI_HALFA|LLI_HALFS);
}
}
}
/* scan input files ----------------------------------------------------------*/
Expand Down Expand Up @@ -756,14 +761,14 @@ static int scan_file(char **files, int nf, rnxopt_t *opt, strfile_t *str,

/* update obs-types */
for (j=0;j<NFREQ+NEXOBS;j++) {
int c=str->obs->data[i].code[j];
if (c==CODE_NONE) continue;
int cd=str->obs->data[i].code[j];
if (cd==CODE_NONE) continue;

for (k=0;k<n[l];k++) {
if (codes[l][k]==c) break;
if (codes[l][k]==cd) break;
}
if (k>=n[l]&&n[l]<32) {
codes[l][n[l]++]=c;
codes[l][n[l]++]=cd;
}
if (k<n[l]) {
if (str->obs->data[i].P[j]!=0.0) types[l][k]|=1;
Expand Down Expand Up @@ -968,21 +973,27 @@ static void outrnxevent(FILE *fp, const rnxopt_t *opt, gtime_t time, int event,
/* save cycle slips ----------------------------------------------------------*/
static void save_slips(strfile_t *str, obsd_t *data, int n)
{
int i,j;

for (i=0;i<n;i++) for (j=0;j<NFREQ+NEXOBS;j++) {
if (data[i].LLI[j]&LLI_SLIP) str->slips[data[i].sat-1][j]=1;
for (int i=0;i<n;i++)
for (int j=0;j<NFREQ+NEXOBS;j++) {
int sat = data[i].sat;
if (sat == 0) continue;
int code = data[i].code[j];
if (code == CODE_NONE) continue;
if (data[i].LLI[j]&LLI_SLIP) str->slips[sat-1][code]=1;
}
}
/* restore cycle slips -------------------------------------------------------*/
static void rest_slips(strfile_t *str, obsd_t *data, int n)
{
int i,j;

for (i=0;i<n;i++) for (j=0;j<NFREQ+NEXOBS;j++) {
if (data[i].L[j]!=0.0&&str->slips[data[i].sat-1][j]) {
data[i].LLI[j]|=LLI_SLIP;
str->slips[data[i].sat-1][j]=0;
for (int i=0;i<n;i++)
for (int j=0;j<NFREQ+NEXOBS;j++) {
int sat = data[i].sat;
if (sat == 0) continue;
int code = data[i].code[j];
if (code == CODE_NONE) continue;
if (data[i].L[j]!=0.0&&str->slips[sat-1][code]) {
data[i].LLI[j]|=LLI_SLIP;
str->slips[sat-1][code]=0;
}
}
}
Expand Down Expand Up @@ -1022,14 +1033,19 @@ static void convobs(FILE **ofp, rnxopt_t *opt, strfile_t *str, int *n,
/* save cycle slips */
save_slips(str,str->obs->data,str->obs->n);

if (!screent_ttol(time,opt->ts,opt->te,opt->tint,opt->ttol)) return;
if (!screent_ttol(time,opt->ts,opt->te,opt->tint,opt->ttol)) {
if (str->staid!=*staid) { /* Station ID changed */
*staid=str->staid;
}
str->obs->flag = 0;
return;
}

/* restore cycle slips */
/* Restore cycle slips */
rest_slips(str,str->obs->data,str->obs->n);

if (str->staid!=*staid) { /* station ID changed */

if (*staid>=0) { /* output RINEX event */
if (str->staid!=*staid) { /* Station ID changed */
if (*staid>=0) { /* Output RINEX event */
outrnxevent(ofp[0],opt,str->time,EVENT_NEWSITE,str->stas,str->staid);
}
*staid=str->staid;
Expand Down Expand Up @@ -1256,7 +1272,7 @@ static int convrnx_s(int sess, int format, rnxopt_t *opt, const char *file,
FILE *ofp[NOUTFILE]={NULL};
strfile_t *str;
gtime_t tend[3]={{0}};
int i,j,nf,type,n[NOUTFILE+2]={0},mask[MAXEXFILE]={0},staid=-1,abort=0;
int j,nf,type,n[NOUTFILE+2]={0},mask[MAXEXFILE]={0},staid=-1,abort=0;
char path[1024],*paths[NOUTFILE],s[NOUTFILE][1024];
char *epath[MAXEXFILE]={0},*staname=*opt->staid?opt->staid:"0000";

Expand All @@ -1270,7 +1286,7 @@ static int convrnx_s(int sess, int format, rnxopt_t *opt, const char *file,
return 0;
}
/* expand wild-cards in input file */
for (i=0;i<MAXEXFILE;i++) {
for (int i=0;i<MAXEXFILE;i++) {
if (!(epath[i]=(char *)malloc(1024))) {
for (i=0;i<MAXEXFILE;i++) free(epath[i]);
return 0;
Expand All @@ -1281,7 +1297,7 @@ static int convrnx_s(int sess, int format, rnxopt_t *opt, const char *file,
return 0;
}
if (!(str=gen_strfile(format,opt->rcvopt))) {
for (i=0;i<MAXEXFILE;i++) free(epath[i]);
for (int i=0;i<MAXEXFILE;i++) free(epath[i]);
return 0;
}
if (format==STRFMT_RTCM2||format==STRFMT_RTCM3||format==STRFMT_RT17) {
Expand All @@ -1291,20 +1307,20 @@ static int convrnx_s(int sess, int format, rnxopt_t *opt, const char *file,
str->time=timeadd(opt->ts,-1.0);
}
/* set GLONASS FCN in RINEX options */
for (i=0;i<MAXPRNGLO;i++) {
for (int i=0;i<MAXPRNGLO;i++) {
str->nav->glo_fcn[i]=opt->glofcn[i]; /* FCN+8 */
}
/* scan input files */
if (!scan_file(epath,nf,opt,str,mask)) {
for (i=0;i<MAXEXFILE;i++) free(epath[i]);
for (int i=0;i<MAXEXFILE;i++) free(epath[i]);
free_strfile(str);
return 0;
}
/* set format and file in RINEX options comments */
setopt_file(format,epath,nf,mask,opt);

/* replace keywords in output file */
for (i=0;i<NOUTFILE;i++) {
for (int i=0;i<NOUTFILE;i++) {
paths[i]=s[i];
if (reppath(ofile[i],paths[i],opt->ts.time?opt->ts:str->tstart,
staname,"")<0) {
Expand All @@ -1316,13 +1332,13 @@ static int convrnx_s(int sess, int format, rnxopt_t *opt, const char *file,
}
/* open output files */
if (!openfile(ofp,paths,path,opt,str->nav)) {
for (i=0;i<MAXEXFILE;i++) free(epath[i]);
for (int i=0;i<MAXEXFILE;i++) free(epath[i]);
free_strfile(str);
return 0;
}
str->time=str->tstart;

for (i=0;i<nf&&!abort;i++) {
for (int i=0;i<nf&&!abort;i++) {
if (!mask[i]) continue;

/* open stream file */
Expand Down Expand Up @@ -1353,7 +1369,7 @@ static int convrnx_s(int sess, int format, rnxopt_t *opt, const char *file,
closefile(ofp,opt,str->nav);

/* remove empty output files */
for (i=0;i<NOUTFILE;i++) {
for (int i=0;i<NOUTFILE;i++) {
if (ofp[i]&&n[i]<=0) remove(ofile[i]);
}
showstat(sess,opt->tstart,opt->tend,n);
Expand All @@ -1362,7 +1378,7 @@ static int convrnx_s(int sess, int format, rnxopt_t *opt, const char *file,
unsetopt_file(opt);

free_strfile(str);
for (i=0;i<MAXEXFILE;i++) free(epath[i]);
for (int i=0;i<MAXEXFILE;i++) free(epath[i]);

return abort?-1:1;
}
Expand Down
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