## What is PSELab software application?

"PSE Lab" is a freeware Windows application useful to estimate power spectrum
and time frequency distribution of signals.

## What are methods used in the program to estimate power
spectrum of signals?

To estimate power spectrum, the application uses following methods:

- periodogram;
- using the simplex algorithm to estimation of complex exponential model
optimal parameters;
- using the quasi-Newton algorithm to estimation of complex exponential model
optimal parameters;
- least squares Prony method;
- modified least squares Prony method;
- Burg method;
- modified covariance method;
- MUSIC.

Most these methods are described in the book "Digital Spectral Analysis with Applications"
by S. L. Marple.

## What are methods used in the program to estimate
time frequency distribution of non-stationary signals?

To estimate time frequency distribution, the application uses following methods:

- short Time Fourier transform signals (Winograd algorithm);
- pseudo-Wigner-Ville transform signals;
- using the simplex algorithm to estimation of complex exponential model
optimal parameters in sliding window;
- using the quasi-Newton algorithm to estimation of complex exponential model
optimal parameters in sliding window;
- least squares Prony method calculation in sliding window;
- Burg method calculation in sliding window;
- modified covariance method calculation in sliding window;
- MUSIC calculation in sliding window.

## How much does it cost?

It is distributed as freeware.

## What are the hardware/software requirements for PSELab?

PSELab requires:

- IBM compatible (P4 recommended);
- 512 MB RAM or higher (2048 MB or higher recommended);
- Windows XP or later.

## How do I install the PSELab program?

Click the link

Downloads
and save (or open) archive. Simply extract the ZIP archive
and run the executable file

*PSELab.exe*.

If you have any questions please do not hesitate to ask in the

forum or contact us via

email.