optic.plot.plotPSD

plotPSD(sig, Fs=1, Fc=0, NFFT=4096, fig=None, label=None)

Plot the power spectrum density (PSD) of a signal.

Parameters:

• sig (np.array) – input signal.

• Fs (scalar, optional) – signal’s sampling frequency. The default is 1.

• Fc (scalar, optional) – signal’s central frequency. The default is 0.

• NFFT (scalar int, optional) – FFT size. The default is 4096.

• fig (figure object, optional) – matplotlib figure handle. The default is [].

• label (string, optional) – PSD plot label. The default is [].

Returns:

• fig (matplotlib figure object) – matplotlib figure object where the plot is generated.

• matplotlib axes object – matplotlib axes object where the plot is displayed.