Ranging sensor system for vehicle

Details Ranging sensor system for vehicle Ranging sensor system for vehicle

1994-05-04

1996-08-13

Eldred, J. Woodrow

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

Return signal controls external device

Radar mounted on and controls land vehicle

342 71, 340435, 340901, 340904, 356 3, 356 27, G01S 1300

Patent

active

055460860

ABSTRACT:
In a ranging sensor system for a vehicle for calculating a physical data between a subject vehicle and an object on the basis of the time between the transmission of a signal toward the object and the reception of a signal reflected from the object, a first obtained detection data is set as an offset value in an offset value setting circuit. The offset value is subtracted from the detection data in a subtractor, and an output from the subtractor is filtered in a filter circuit. The offset value is added to an output from the filter circuit in an adder to provide a physical data after the filtering. Thus, it is possible to eliminate an error included in detection data, while insuring a responsiveness and a stability.

REFERENCES:
patent: 4757450 (1988-07-01), Etoh
patent: 5227784 (1993-07-01), Masamori et al.
patent: 5293162 (1994-03-01), Bachalo
patent: 5314037 (1994-05-01), Shaw et al.
patent: 5321407 (1994-06-01), Kikuchi et al.
patent: 5341344 (1994-08-01), O'Brien et al.

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