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Use more accurate arctan for NBFM demodulation.

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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
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4
firmware/baseband/dsp_demodulate.cpp
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@ -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;