Vehicle tracking control for continuously detecting the distance

Details Vehicle tracking control for continuously detecting the distance Vehicle tracking control for continuously detecting the distance

1990-02-16

1991-06-25

Wallace, Linda J.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356 4, 356152, 180167, 340903, G01C 308, G08G 116

Patent

active

050261533

ABSTRACT:
In an automobile radar apparatus according to the present invention, a light-receiving optical system is rotated in response to an output from an image formation position calculation unit in such a manner that light source is focused on a vertical plane containing an optical axis of the light-receiving optical system; a direction up to the preceding vehicle is calculated from a turning angle in response to an output derived from an angular detecting unit; and a distance up to the preceding vehicle is calculated from an image position of the light source based upon an output derived from the image formation calculation unit.

REFERENCES:
patent: 4257703 (1981-03-01), Goodrich
patent: 4632543 (1986-12-01), Endo
patent: 4652917 (1987-03-01), Miller
patent: 4895440 (1990-01-01), Cain et al.

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