Abstract:

An important part of the digital signal processing,power spectrum estimation is divided into classical and modern spectral estimation spectral estimation.Classical spectral estimation refers mainly to the periodogram method and its improvement.Modern spectral estimation covers parametric model and non-parametric model spectrum estimation.This paper describes the principles and characteristics of several common power spectrum estimation methods,and makes the Matlab simulation analysis to show that Burg method based on AR parameter model is better.

Key words: power spectrum estimation;periodogram;AR parameter model;Matlab