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rs41, dfm09: rotate fq to 0 such that --IQ <signal fq in baseband>

pull/18/head
Zilog80 2019-08-17 10:10:02 +02:00
rodzic bbae81cc94
commit a2b3d53b00
2 zmienionych plików z 4 dodań i 4 usunięć
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4
demod/mod/dfm09mod.c
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@ -940,14 +940,14 @@ int main(int argc, char **argv) {
else if (strcmp(*argv, "--iq0") == 0) { option_iq = 1; } // differential/FM-demod
else if (strcmp(*argv, "--iq2") == 0) { option_iq = 2; }
else if (strcmp(*argv, "--iq3") == 0) { option_iq = 3; } // iq2==iq3
else if (strcmp(*argv, "--IQ") == 0) { // baseband -> IF (rotate and decimate)
else if (strcmp(*argv, "--IQ") == 0) { // fq baseband -> IF (rotate from and decimate)
double fq = 0.0; // --IQ <fq> , -0.5 < fq < 0.5
++argv;
if (*argv) fq = atof(*argv);
else return -1;
if (fq < -0.5) fq = -0.5;
if (fq > 0.5) fq = 0.5;
dsp.xlt_fq = fq;
dsp.xlt_fq = -fq; // S(t) -> S(t)*exp(-f*2pi*I*t)
option_iq = 5;
}
else if (strcmp(*argv, "--dbg") == 0) { gpx.option.dbg = 1; }

4
demod/mod/rs41mod.c
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@ -1634,14 +1634,14 @@ int main(int argc, char *argv[]) {
else if (strcmp(*argv, "--iq0") == 0) { option_iq = 1; } // differential/FM-demod
else if (strcmp(*argv, "--iq2") == 0) { option_iq = 2; }
else if (strcmp(*argv, "--iq3") == 0) { option_iq = 3; } // iq2==iq3
else if (strcmp(*argv, "--IQ") == 0) { // baseband -> IF (rotate and decimate)
else if (strcmp(*argv, "--IQ") == 0) { // fq baseband -> IF (rotate from and decimate)
double fq = 0.0; // --IQ <fq> , -0.5 < fq < 0.5
++argv;
if (*argv) fq = atof(*argv);
else return -1;
if (fq < -0.5) fq = -0.5;
if (fq > 0.5) fq = 0.5;
dsp.xlt_fq = fq;
dsp.xlt_fq = -fq; // S(t) -> S(t)*exp(-f*2pi*I*t)
option_iq = 5;
}
else if (strcmp(*argv, "--ofs") == 0) { option_ofs = 1; }