[Pxx, F] = periodogram(X)
[Pxx, F] = periodogram(X, WINDOW, NFFT, Fs)
[Pxx, F] = periodogram(..., FREQRANGE)
[Pxx, F] = periodogram(..., SPECTRUMTYPE)
| Parameter | Description |
|---|---|
| X | input signal. |
| WINDOW | window vector or length. |
| NFFT | FFT length. |
| Fs | sample rate. |
| FREQRANGE | "onesided", "twosided", "centered", "half", or "whole". "half" is treated as "onesided" and "whole" as "twosided". |
| SPECTRUMTYPE | "psd" or "power". |
| Parameter | Description |
|---|---|
| Pxx | power spectral density or power spectrum estimate. |
| F | frequency vector. |
periodogram estimates signal power distribution over frequency.
[pxx, f] = periodogram(sin((0:127)' * 0.1), [], 128, 10);| Version | Description |
|---|---|
| 2.0.0 | initial version |