Receiver bandwidth conservation in a Doppler radar

Details Receiver bandwidth conservation in a Doppler radar Receiver bandwidth conservation in a Doppler radar

1977-11-25

1979-06-12

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 5DP, G01S 946

Patent

active

041582020

ABSTRACT:
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 single 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.

REFERENCES:
patent: 2923000 (1960-01-01), Wolinsky
patent: 3013262 (1961-12-01), Tollefson
patent: 3095563 (1963-06-01), Vladimir
patent: 3150323 (1964-09-01), Stavis et al.
patent: 3371341 (1968-02-01), Stavis
patent: 3852744 (1974-12-01), Slater

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