Receiver bandwidth conservation in a doppler radar

Details Receiver bandwidth conservation in a doppler radar Receiver bandwidth conservation in a doppler radar

G - Physics

01

S

343/50

G01S 13/60 (2006.01)

Patent

CA 1137600

ABSTRACT OF THE INVENTION A Doppler radar having a single sense Doppler signal from the rf mixer. A single sideband modulator in a common antenna system for transmitting and receiving shifts the fore and aft beams to achieve a single sense Doppler signal. The use of the single sideband modulator results in a differential Doppler shift between fore and aft beams of only a few hundred knots, thereby permitting use of low cost components. A sin- gle sense Doppler also reduces the Doppler passband by a 2:1 factor which permits the power supply frequency to operate at a higher frequency than the receiver. -2-

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