signals.py 文件源码

def fourrier_spectrum(self, *args, **kwargs):
        """
          Parameters
          ----------
          *args, **kwargs
              extra arguments provided to the periodogram function.

          Returns
          -------
          tuple of numpy.ndarray: fourrier modes and power density obtained with the scipy.signal.periodogram function.
          """  # noqa
        freq, ampl = periodogram(self._template, fs=1 / self._dt)
        return freq, ampl