linearfilter.py 文件源码

def phase_resp(self, frequencies=None, unwrap=False):
        """Calculate the real phase response"""
        w, h    = self.complex_freq_resp(frequencies)
        phase   = np.angle(h, deg=False)
        phase   = np.unwrap(phase) if unwrap else phase
        phase   = np.rad2deg(phase)
        freqs   = rad2hz(w, self.fs)

        return freqs, phase