Chapter 4

The Matched Filter Radar Receiver

4.1. The Matched Filter SNR

The topic of matched filtering is central to almost all radar systems. In this chapter the focus is the matched filter. The unique characteristic of the matched filter is that it produces the maximum achievable instantaneous SNR at its output when a signal plus noise (Gaussian noise is assumed in the analysis presented in this book) are present at its input. Maximizing the SNR is key in all radar applications, as was described in Chapter 2 in the context of the radar equation, and as will be discussed in a subsequent chapter in the context of target detection.

It is important to use a radar receiver which can be modeled as an LTI system that maximizes the signal’s SNR at ...

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