pub fn demodulate_gmsk(
in_i: &[f32],
in_q: &[f32],
n_bits: usize,
sps: usize,
noise_var: f32,
scale: f32,
llr: &mut [i16],
)Expand description
Demodulates GMSK using soft-decision differential detection.
Computes the cross-product of samples spaced sps apart to
approximate sin(Δφ), which is proportional to the transmitted
bit. The result is scaled by scale / σ² and quantized to i16.
Produces one LLR per bit. Bits at the beginning (before the first full symbol delay) use the initial reference (1, 0).