Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Patent
1999-02-16
2000-06-13
Gregory, Bernarr E.
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Radar mounted on and controls land vehicle
342 27, 342 89, 342159, 342175, 342195, G01S 1393
Patent
active
060754796
ABSTRACT:
A radar apparatus installed on a vehicle includes a transmission section and a reception section. The transmission section has at least a transmission antenna, and emits a transmission wave toward a detection area in a front of the vehicle. The transmission wave may be reflected by a reflector such as a preceding vehicle to produce reflection wave, and the detection area includes a plurality of sub-areas. The reception section has at least a reception antenna, and receives and detects the reflection wave. A detecting unit detects a reflector indication data indicative of a reflector attribute for every sub-area for a current detection cycle based on the detecting result by the reception section. Also, the detecting unit determines whether the detected reflector indication data are correct, by use of the detected reflector indication data, to determine that the detected reflector indication data are final reflector indication data when it is determined that the detected reflector indication data is correct. A correcting unit corrects an incorrect part of the detected reflector indication data to a correct reflection indication data to produce the final reflector indication data, when it is determined that the part of the detected reflector indication data is not correct. A determining unit determines whether there is the reflector in the detection area, based on the final reflector indication data.
REFERENCES:
patent: 5321407 (1994-06-01), Kikuchi et al.
patent: 5448244 (1995-09-01), Komatsu et al.
patent: 5923280 (1999-07-01), Farmer
Blackman William D.
Carrier Joseph P.
Gregory Bernarr E.
Honda Giken Kogyo Kabushiki Kaisha
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