Phase correlator reduces mm-wave radar cost
Abstract
A technique involving the IC storage of magnetron phase for reference has been developed to make possible the use of the low-cost efficient magnetron in obtaining phase coherent signals for pulse Doppler radar. In the new external coherence method, the recorded random midpulse-region phase is compared with the frequency of the echo allowing Doppler information, free of phase noise, to be extracted. The gated magnetron was tested at Ka-band in a 35-GHz radar, and good agreement with the CP-4 5.5 GHz radar was shown. With good accuracy down to 10 cm/s, the present system, especially in the mm-wave region, has important applications to meteorological and military radar.
- Publication:
-
Microwaves
- Pub Date:
- March 1986
- Bibcode:
- 1986MicWa..25..125W
- Keywords:
-
- Magnetrons;
- Millimeter Waves;
- Phase Control;
- Pulse Doppler Radar;
- Radar Measurement;
- Velocity Measurement;
- Correlators;
- Cost Reduction;
- Klystrons;
- Power Gain;
- Radar Echoes;
- Electronics and Electrical Engineering