ABSTRACT
In this chapter we will investigate, discuss, and compare several signalprocessing techniques. We have already discussed in detail the Fourier series and Fourier transform techniques and their advantages. There are, however, situations where the standard Fourier technique either does not adequately yield the desired information or yields incorrect information. Under those situations, other special techniques are needed. We will discuss several of these special techniques, including autoregressive (AR) modeling, time-frequency analysis, and wavelet analysis.
