Ability of microwave Doppler radar to measure velocity of slow moving nearby target is enhanced by pulsed 90 degrees phase shifter in radar transmission line between circulator and antenna. Because of phase shifting, Doppler frequency is detected as modulation on carrier instead of baseband signal. Carrier is amplified and filtered before demodulation, resulting in strong, clean demodulated Doppler for measurement and display.
Pulsed Phase Shifter Improves Doppler Radar
NASA Tech Briefs ; 7 , 1
1982-03-01
Miscellaneous
No indication
English
TIBKAT | 1988
|Tema Archive | 1988
|TIBKAT | 1996
|Pulsed Doppler radar detects weather hazards to aviation
AIAA | 1981
|Pulsed Doppler Radar Detects Weather Hazards to Aviation
AIAA | 1982
|