Chapter 2

Continuous Wave (CW) Radar

Small CW Doppler radar sets are used as motion sensors to open the doors at large retail stores and by law enforcement for measuring the speed of automobiles. Purpose-built instrumentation CW Doppler radar units can be used to observe physical phenomena, such as the Doppler spectra of moving targets or observation of nature in general. Discussion of CW radar architectures will be presented (Sec. 2.1), followed by the radar range equation applied to small CW Doppler radar (Sec. 2.3). Signal processing will be discussed (Sec. 2.2), and working examples of small CW Doppler radar sets will be detailed (Sec. 2.4).

2.1 CW Radar Architecture

Most small CW Doppler radar systems follow the coherent radar architecture ...

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