Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Patent
1998-07-22
2000-02-15
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 61, 342 71, 342 72, 342175, 342195, 701 70, 701300, 701301, G01S 1393
Patent
active
060257970
ABSTRACT:
An angular shift determining apparatus is provided which may be employed in an automotive obstacle detection system designed to determine a distance to and angular direction of a target tracked by a radar. The angular shift determining apparatus determines an angular shift of the central axis of radiation of radar waves from the longitudinal center line of a vehicle equipped with the obstacle detection system based on a relative position of the target and removes from the determined angular shift an error component produced when a preceding vehicle traveling with a lateral offset from the system vehicle is tracked as the target and an error component produced when a stationary object located on a curved road is tracked by the radar as the target to mathematically project an actual angular shift of the central axis of radiation of radar waves.
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Kawai Nobuharu
Shirai Noriaki
Denso Corporation
Gregory Bernarr E.
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