ABSTRACT
In this chapter Doppler processing is analyzed in the context of continuous wave (CW) radars and pulsed Doppler radars. Continuous wave radars utilize CW waveforms, which may be considered to be a pure sinewave of the form
. Spectra of the radar echo from stationary targets and clutter will be concentrated at . The center frequency for the echoes from moving targets will be shifted by , the Doppler frequency. Thus, by measuring this frequency difference CW, radars can very accurately extract target radial velocity. Because of the continuous nature of CW emission, range measurement is not possible without some modifications to the radar operations and waveforms, which will be discussed later.
