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Noun. 1. Doppler radar-radar that uses the Doppler shift to measure velocity. microwave radar, radar, radio detection and ranging, radiolocation-measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects. 1  Facebook. 2  Twitter.
It combines the features of pulse radars and continuous-wave radars, which were formerly separate due to the complexity of the electronics. Pulse-Doppler systems were first widely used on fighter aircraft starting in the 1960s.ejection speed is selectable on pulse-Doppler aircraft-detection systems so nothing below that speed will be detected. A one degree antenna beam illuminates millions of square feet of terrain at 10 miles (16 km) range, and this produces thousands of detections at or below the horizon if Doppler is not used.