DSP Blockset

Power Spectrum Estimation

The Power Spectrum Estimation library provides a number of blocks for spectral analysis. Many of them have correlates in the Signal Processing Toolbox, which are shown in parentheses:

• Burg Method (pburg)
• Covariance Method (pcov)
• Magnitude FFT (periodogram)
• Modified Covariance Method (pmcov)
• Short-Time FFT
• Yule-Walker Method (pyulear)

See Spectral Analysis in the Signal Processing Toolbox documentation for an overview of spectral analysis theory and a discussion of the above methods.

The DSP Blockset provides two demos that illustrate the spectral analysis blocks:

• A Comparison of Spectral Analysis Techniques (dspsacomp)
• Spectral Analysis: Short-Time FFT (dspstfft)

Example: Using the IFFT Block

Linear Algebra