diff options
| author | Andreas Eversberg <jolly@eversberg.eu> | 2019-12-05 21:57:23 +0100 |
|---|---|---|
| committer | Andreas Eversberg <jolly@eversberg.eu> | 2019-12-08 17:26:47 +0100 |
| commit | 4af2dca10dc4fb15eb5731bfba25b407a272f63b (patch) | |
| tree | 01cc84fe1d1ea08329261b8b25bb8a65a5855a51 /src/libam/am.c | |
| parent | 150a77b69d7a91a300540606b4eccf382e0caf08 (diff) | |
Add power control to AM (power on/off per sample)
Diffstat (limited to 'src/libam/am.c')
| -rw-r--r-- | src/libam/am.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/libam/am.c b/src/libam/am.c index d5c50b6..7194b49 100644 --- a/src/libam/am.c +++ b/src/libam/am.c @@ -91,7 +91,7 @@ void am_mod_exit(am_mod_t __attribute__((unused)) *mod) { } -void am_modulate_complex(am_mod_t *mod, sample_t *amplitude, int num, float *baseband) +void am_modulate_complex(am_mod_t *mod, sample_t *amplitude, uint8_t *power, int num, float *baseband) { int s; double vector; @@ -101,7 +101,10 @@ void am_modulate_complex(am_mod_t *mod, sample_t *amplitude, int num, float *bas double bias = mod->bias; for (s = 0; s < num; s++) { - vector = *amplitude++ * gain + bias; + if (*power++) + vector = *amplitude++ * gain + bias; + else + vector = 0.0; if (fast_math) { *baseband++ += cos_tab[(uint16_t)phase] * vector; *baseband++ += sin_tab[(uint16_t)phase] * vector; |