Radar apparatus of a vehicle for accurately detecting a target h

Details Radar apparatus of a vehicle for accurately detecting a target h Radar apparatus of a vehicle for accurately detecting a target h

1996-12-19

1998-08-11

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Return signal controls external device

Radar mounted on and controls land vehicle

342 71, 342 81, 342158, G01S 1393

Patent

active

057933251

ABSTRACT:
A radar apparatus includes a radar unit which detects a position of a target based on a reflection beam reflected from the target and outputs data related to the detected position. A scanning control unit controls a direction of a beam radiation axis of the radar unit to the target. A certainty-factor determining unit determines a certainty factor of the target based on data presently detected by the radar unit and data previously detected by the radar unit. A certainty-factor adjusting unit controls the certainty factor such that a changing rate to the certainty factor is determined based on the data from the radar unit, the certainty factor being adjusted by the changing rate. A first changing-rate varying unit varies the changing rate to one of a plurality of predetermined values based on a target center positional angle to the target, whereby the certainty-factor adjusting unit adjusts the certainty factor by the changing rate.

REFERENCES:
patent: 3778823 (1973-12-01), Sato et al.
patent: 4069888 (1978-01-01), Wolters et al.
patent: 5181038 (1993-01-01), Ashbury et al.
patent: 5325096 (1994-06-01), Pakett
patent: 5517196 (1996-05-01), Pakett et al.
patent: 5612699 (1997-03-01), Yamada
Patent Abstract of Japan re: S. Kojima et al., Object Detector, JP 6-150195 (A).
Patent Abstract of Japan re: Masashi et al., On-Vehicle Object Detecting Device, 07-209410 A.

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