Onboard radar system for a vehicle

Details Onboard radar system for a vehicle Onboard radar system for a vehicle

1997-12-10

1999-08-17

Lobo, Ian J.

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

Return signal controls external device

Radar mounted on and controls land vehicle

342128, 342109, G01S 1393, G01S 1334

Patent

active

059400242

ABSTRACT:
An onboard radar system for a vehicle using the FM-CW method is provided. The radar system includes a mode changer. The mode changer provides a first mode which is suitable to detect a target existing distant from the vehicle. The mode changer also provides a second mode which is suitable to detect a target existing nearby the vehicle. The radar system detects a pair of beat frequencies in the first mode. Further, the radar system detects another pair of beat frequencies in the second mode. The radar system detects a target based on a pair of base beat frequencies which are determined based on an analysis result of both pairs of the beat frequencies.

REFERENCES:
patent: 5619208 (1997-04-01), Tamatsu et al.
patent: 5652589 (1997-07-01), Ono et al.
patent: 5751240 (1998-05-01), Fujita et al.

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