Chapter 3
Linear Systems and Complex Signal Representation
In this chapter a top-level overview of elements of signal theory that are relevant to radar signal processing is presented. It is assumed that the reader has sufficient and adequate background in signals and systems as well as in Fourier transform and its associated properties.
3.1. Signal Classifications
In general, electrical signals can represent either current or voltage and may be classified into two main categories: energy signals and power signals. Energy signals can be deterministic or random, while power signals can be periodic or random. A signal is said to be random if it is a function of a random parameter (such as random phase or random amplitude). Additionally, signals ...
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