Title:
車両用レーダ装置
Document Type and Number:
Japanese Patent JP3994941
Kind Code:
B2
Abstract:
A vehicular radar device capable of accurately detecting rain or the like or a road surface by discriminating between the rain or the like or the road surface and others. The vehicular radar device has a control circuit which performs a detection operation in an up state in which the visual field of the radar is shifted comparatively upwardly in the vertical direction so that the road surface is not detected, and determines that, from among detection data obtained during the up state, detection data which does not vary in reception intensity nor in reception delay time (distance data) for a predefined time is detection data relative to rain or the like, and which performs a detection operation in a down state in which the visual field of the radar is shifted comparatively downwardly in the vertical direction so that the road surface is positively detected, and determines that, from among detection data obtained during the down state, detection data which varies in reception delay time compared to a detection operation in an immediately previous normal state is detection data relative to the road surface.
Inventors:
Arita Satoru
Yasumasa Asada
Yasumasa Asada
Application Number:
JP2003277264A
Publication Date:
October 24, 2007
Filing Date:
July 22, 2003
Export Citation:
Assignee:
OMRON Corporation
International Classes:
G01S17/931; G01S17/95; G01S7/48
Domestic Patent References:
| JP8122437A | ||||
| JP11115623A | ||||
| JP62015480A | ||||
| JP2004271404A | ||||
| JP2004125636A | ||||
| JP2003121542A | ||||
| JP2003042757A | ||||
| JP2002257934A | ||||
| JP2000065932A | ||||
| JP9159765A | ||||
| JP4215089A |
Foreign References:
| WO2002056054A2 |
Attorney, Agent or Firm:
Hidemi Kashima