torchsig.utils.dsp.srrc_taps¶

torchsig.utils.dsp.srrc_taps(iq_samples_per_symbol: int, filter_span_in_symbols: int, alpha: float = 0.35) → ndarray[source]¶

Designs square-root raised cosine (SRRC) pulse shaping filter

Parameters:

iq_samples_per_symbol (int) – The samples-per-symbol (SPS) of the underlying modulation, equivalent to the oversampling rate.
filter_span_in_symbols (int) – The filter span in number of symbols.
alpha (float, optional) – The alpha roll-off value of the pulse shaping filter, which is the amount of excess bandwidth. Defaults to 0.35.

Returns:

SRRC filter weights

Return type:

np.ndarray