Signal Processing Toolbox

Spectrum Viewer

You can use the Spectrum Viewer for estimating and analyzing a signal's power spectral density (PSD). You can use the PSD estimates to understand a signal's frequency content.

The Spectrum Viewer provides the following functionality.

• Analyze and compare spectral density plots.
• Use different spectral estimation methods to create spectra:
• Burg (pburg)
• Covariance (pcov)
• FFT (fft)
• Modified covariance (pmcov)
• MTM (multitaper method) (pmtm)
• MUSIC (pmusic)
• Welch (pwelch)
• Yule-Walker AR (pyulear)
• Modify power spectral density parameters such as FFT length, window type, and sample frequency.
• Print spectral plots.

Opening the Filter Viewer

Opening the Spectrum Viewer