Doppler distance measuring system

Details Doppler distance measuring system Doppler distance measuring system

1959-04-22

1978-10-03

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 8, G01S 742, G01S 946

Patent

active

041187024

ABSTRACT:
1. A system for measuring the distance to a target comprising: means for nsmitting a signal to said target and for receiving a return signal from said target, means for mixing said transmitted signal and said return signal to produce a doppler signal, means connected to said mixing means and responsive to said doppler signal for initiating a first voltage timing function, means having a signal input connected to said mixing means and responsive to said doppler signal and a gating input responsive to said first timing function for initiating a second voltage timing function when said doppler signal reaches a predetermined value, and means connected to said means for initiating a second voltage timing function and responsive to said second timing function for producing a signal when said target is at a predetermined distance from said transmitting and receiving means.

REFERENCES:
patent: 2537569 (1951-01-01), Ballard
patent: 2891245 (1959-06-01), Coogan et al.
patent: 2939004 (1960-05-01), Cole et al.
patent: 3004219 (1961-10-01), Albert
patent: 3011166 (1961-11-01), Fell et al.

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