Vehicle collision anticipating method and device

Details Vehicle collision anticipating method and device Vehicle collision anticipating method and device

1977-06-24

1979-03-06

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 9, 343112CA, G01S 944

Patent

active

041433700

ABSTRACT:
An improvement of a vehicle collision anticipating method and device using transmitted and reflected frequency-modulated continuous waves is provided. A low frequency wave is produced by mixing a part of transmitted wave and a reflected wave from the object. The low frequency wave and a Doppler signal obtained from the low frequency wave are signal processed so as to generate signals. A predetermined distance range is obtained by multiplying a time which is determined by the distance between the vehicle and object and the velocity of said object with respect to the vehicle obtained from the Doppler signal, by a relative velocity of the object with respect to the vehicle. A collision of the object against the vehicle is anticipated by detecting the object entering the predetermined distance range in front of the vehicle.

REFERENCES:
patent: 3095566 (1963-06-01), Dethloff et al.
patent: 3208064 (1965-09-01), Morrel
patent: 3394342 (1968-07-01), Walker
patent: 3512155 (1970-05-01), Bloice
patent: 3611385 (1971-10-01), McHenry
patent: 3757325 (1973-09-01), Sato et al.
patent: 3760415 (1973-09-01), Holmstrom et al.

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