Onboard radar apparatus

Details Onboard radar apparatus Onboard radar apparatus

1999-08-10

2000-10-24

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 99, 342109, 342115, 342159, G01S 1393

Patent

active

061374350

ABSTRACT:
The present invention relates to an onboard radar apparatus having a receiving and transmitting device for transmitting electromagnetic waves to objects and receiving the electromagnetic waves reflected by the objects repeatedly, and a signal processing device for repeatedly calculating relative ranges and relative velocities of the objects based on the transmitting electromagnetic waves and the receiving electromagnetic waves, wherein false images are judged by comparing their relative velocities, calculated from differences between the relative ranges of the objects in previous measurement and the relative ranges of the objects in current measurement, with said relative velocities of the objects, calculated based on the transmitting electromagnetic waves and the receiving electromagnetic waves in the current measurement; and thus judged false images are deleted from outputs of the apparatus, whereby the false images are not recognized as target objects and probability of occurrence of false images can be reduced.

REFERENCES:
patent: 4348675 (1982-09-01), Senzaki et al.

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