Digitally processed radar speed sensor

Details Digitally processed radar speed sensor Digitally processed radar speed sensor

1976-11-01

1978-08-15

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 7VM, 343717, 343879, G01S 946, H01Q 132, H01Q 2100

Patent

active

041076800

ABSTRACT:
A Doppler speed sensor for a ground vehicle wherein errors due to vehicle tilt relative to the ground surface and initial mounting angle error are substantially eliminated by using a first antenna with its radiation pattern directed down and forward and a second antenna with its radiation pattern directed down and rearward, so the principal axes of the radiation patterns are 90.degree. apart. A novel digital technique for processing the signals received from such antennas is also disclosed.

REFERENCES:
patent: 650255 (1900-05-01), Kitsee
patent: 2140730 (1938-12-01), Batchelor
patent: 2422064 (1947-06-01), Anderson et al.
patent: 2426228 (1947-08-01), Mackta
patent: 3277430 (1966-10-01), Hagemann et al.
patent: 3833906 (1974-09-01), Augustine et al.
patent: 3859660 (1975-01-01), Augustine et al.
patent: 3898652 (1975-08-01), Rashid
patent: 3918058 (1975-11-01), Noyori et al.

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