Radar apparatus

Details Radar apparatus Radar apparatus

1994-06-06

1995-11-28

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 72, G01S 1393

Patent

active

054712157

ABSTRACT:
A low-cost compact radar apparatus measures a distance to a target and the relative speed of the target. The apparatus has a transmitter for transmitting a pulse signal and a receiver for receiving a reflected pulse signal from the target. The received signal is converted into a binary signal, which is sampled by a sampler and is accumulated in a cumulative storage unit. Addresses of the storage unit correspond to an interval between the transmission and reception of the pulse signal. According to the interval, the distance and relative speed of the target are calculated at high speed. The apparatus carries out many accumulation operations, to improve an S/N ratio and speedily detect even a weak reflected signal.

REFERENCES:
patent: 3806861 (1974-04-01), Okumura et al.
patent: 4168499 (1979-09-01), Matsumura et al.
patent: 4308536 (1981-12-01), Sims, Jr. et al.
patent: 4818999 (1989-04-01), Kobayashi et al.
patent: 5181037 (1993-01-01), Komatsu
patent: 5220331 (1993-06-01), Gunter
patent: 5229774 (1993-07-01), Komatsu
patent: 5321407 (1994-07-01), Kikuchi et al.
patent: 5355118 (1994-10-01), Fukuhara et al.
patent: 5381153 (1995-01-01), Saito et al.

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