sdr.crest_factor(x: NDArray) → float Measures the crest factor of a time-domain signal \(x[n]\). \[\text{CF} = \frac{V_{\text{peak}}}{V_{\text{rms}}}\] Parameters:¶ x: NDArray¶The time-domain signal \(x[n]\) to measure. Returns:¶ The crest factor of \(x[n]\). See also sdr.peak_voltage, sdr.rms_voltage References¶ https://en.wikipedia.org/wiki/Crest_factor