sdr.peak_voltage(x: ArrayLike) → float Measures the peak voltage of a time-domain signal \(x[n]\). \[V_{\text{peak}} = \max \left( \left| x[n] \right| \right)\] Parameters:¶ x: ArrayLike¶The time-domain signal \(x[n]\) to measure. Returns:¶ The peak voltage of \(x[n]\) in units.