C++ (Cpp) decode_alm1 Examples

Example #1

File: skytraq.c Project: brNX/rtklibros

/* decode skytraq subframe buffer --------------------------------------------*/
static int decode_stqsfrb(raw_t *raw)
{
    int prn,sat,sys,id;
    unsigned char *p=raw->buff+4;
    
    trace(4,"decode_stqsfrb: len=%d\n",raw->len);
    
    if (raw->len<40) {
        trace(2,"stq subframe length error: len=%d\n",raw->len);
        return -1;
    }
    prn=U1(p+1);
    if (prn>MAXPRNGPS) prn+=MINPRNSBS-38;
    if (!(sat=satno(MINPRNSBS<=prn?SYS_SBS:SYS_GPS,prn))) {
        trace(2,"stq subframe satellite number error: prn=%d\n",prn);
        return -1;
    }
    sys=satsys(sat,&prn);
    
    if (sys==SYS_GPS) {
        id=save_subfrm(sat,raw);
        if (id==3) return decode_ephem(sat,raw);
        if (id==4) return decode_alm1 (sat,raw);
        if (id==5) return decode_alm2 (sat,raw);
        return 0;
    }
    return 0;
}

Example #2

File: ublox.c Project: aamalik/gnss-master

/* decode ublox rxm-sfrb: subframe buffer ------------------------------------*/
static int decode_rxmsfrb(raw_t *raw)
{
    unsigned int words[10];
    int i,prn,sat,sys,id;
    unsigned char *p=raw->buff+6;
    
    trace(4,"decode_rxmsfrb: len=%d\n",raw->len);
    
    if (raw->len<42) {
        trace(2,"ubx rxmsfrb length error: len=%d\n",raw->len);
        return -1;
    }
    prn=U1(p+1);
    if (!(sat=satno(MINPRNSBS<=prn?SYS_SBS:SYS_GPS,prn))) {
        trace(2,"ubx rxmsfrb satellite number error: prn=%d\n",prn);
        return -1;
    }
    sys=satsys(sat,&prn);
    
    if (sys==SYS_GPS) {
        id=save_subfrm(sat,raw);
        if (id==3) return decode_ephem(sat,raw);
        if (id==4) return decode_alm1 (sat,raw);
        if (id==5) return decode_alm2 (sat,raw);
        return 0;
    }
    else if (sys==SYS_SBS) {
        for (i=0,p+=2;i<10;i++,p+=4) words[i]=U4(p);
        return sbsdecodemsg(raw->time,prn,words,&raw->sbsmsg)?3:0;
    }
    return 0;
}

Example #3

File: skytraq.c Project: owenbupt/rtklib

/* decode skytraq subframe buffer --------------------------------------------*/
static int decode_stqsfrb(raw_t *raw)
{
    int prn,sat,id;
    unsigned char *p=raw->buff+4;

    trace(4,"decode_stqsfrb: len=%d\n",raw->len);

    if (raw->len<40) {
        trace(2,"stq subframe length error: len=%d\n",raw->len);
        return -1;
    }
    prn=U1(p+1);
    if (!(sat=satno(SYS_GPS,prn))) {
        trace(2,"stq subframe satellite number error: prn=%d\n",prn);
        return -1;
    }
    id=save_subfrm(sat,raw);
    if (id==3) return decode_ephem(sat,raw);
    if (id==4) return decode_alm1 (sat,raw);
    if (id==5) return decode_alm2 (sat,raw);
    return 0;
}