Radar method and apparatus

Details Radar method and apparatus Radar method and apparatus

1978-08-04

1980-05-13

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 175, 343113DE, G01S 924

Patent

active

042031133

ABSTRACT:
The disclosure relates to radar methods and systems for directionally selective detection of objects and determination of the distances to the objects. A rectangular-wave frequency-shifted radar signal is employed. This radar signal may be generated by inducing a directionally dependent Doppler shift which permits directionally selective detection. Higher and lower frequency portions of the returned radar signal are separately frequency converted and phase compared to determine range. In a preferred embodiment, a collision avoidance system for automobiles is provided.

REFERENCES:
patent: 2861264 (1958-11-01), Lair
patent: 3383686 (1968-05-01), Davis et al.
patent: 4106023 (1978-08-01), Baghdady

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