TheArchive/mayhem-firmware
1
0
Fork 0
mirror of https://github.com/portapack-mayhem/mayhem-firmware.git synced 2025-08-25 06:47:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

Use more accurate arctan for NBFM demodulation.

Browse Source
This commit is contained in:
Jared Boone
2016-02-02 16:15:14 -08:00
parent ab2c5b256f
commit ceef8d32d3
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
firmware/baseband/dsp_demodulate.cpp
View File

@@ -99,8 +99,8 @@ buffer_f32_t FM::execute(
const auto t0 = multiply_conjugate_s16_s32(s0, z); const auto t0 = multiply_conjugate_s16_s32(s0, z);
const auto t1 = multiply_conjugate_s16_s32(s1, s0); const auto t1 = multiply_conjugate_s16_s32(s1, s0);
z = s1; z = s1;
*(dst_p++) = angle_approx_0deg27(t0) * k; *(dst_p++) = angle_precise(t0) * k;
*(dst_p++) = angle_approx_0deg27(t1) * k; *(dst_p++) = angle_precise(t1) * k;
} }
z_ = z; z_ = z;