Imminent collision detection apparatus

Details Imminent collision detection apparatus Imminent collision detection apparatus

1969-02-20

1978-02-07

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

102 702P, 343 77, F42C 1304, G01S 942

Patent

active

040729443

ABSTRACT:
Apparatus is herein disclosed for imminent collision detection equipment for acknowledging proximity between a first object carrying the equipment and a second object. The imminent collision detection apparatus is a radio distance measuring device and includes a transmitter and a receiver. The transmitter has a pulsed energy output which is reflected back by a target and mixed with a reference source of pulsed energy generated a predetermined time after the transmitted output and coherent thereto. The coherent feature of the equipment lies in the fact that the transmitter pulsed output and the pulsed reference signals are both generated with the same starting phase each generated pulse. Furthermore, the transmitted and reference signals are jittered to provide a resistance to countermeasures capability.

REFERENCES:
patent: 2671896 (1954-03-01), DeRosa
patent: 2776425 (1957-01-01), Altman
patent: 3066289 (1962-11-01), Elbinger
patent: 3153786 (1964-10-01), Byington
patent: 3208065 (1965-09-01), Gutleber et al.
patent: 3270339 (1966-08-01), McEuen et al.
"Radar System Engineering" by Louis N. Ridenour, McGraw-Hill Book Company, 1947, pp. 635-638.

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