Title:
車載レーダ装置
Document Type and Number:
Japanese Patent JP4566572
Kind Code:
B2
Abstract:
An on-vehicle radar system capable of detecting a range error from range data based on an echo from a target ( 6 ). Range error is detected when amplitudes of beat frequency components in two adjacent range gates are substantially equal. The system includes a transmitting unit ( 1, 2, 4, 5 ) for radiating a modulated wave having frequency increasing and decreasing repetitively after pulse modulation, a receiving unit ( 8, 9, 10, 11, 12 ) for receiving the echo, and an arithmetic unit ( 13 ) for detecting a range error ascribable to aberration of modulation band width due to frequency increase and decrease of transmission wave (W 1 ) by comparing a range corresponding to the range gate with that determined from a frequency difference between transmission wave and echo. The arithmetic unit ( 13 ) detects the range error on the basis of frequency difference components having substantially same amplitudes in adjacent range gates.
Inventors:
Koichi Kai
Application Number:
JP2004028474A
Publication Date:
October 20, 2010
Filing Date:
February 04, 2004
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G01S13/26; G01S13/522; G01S7/40; G01S13/34; G01S13/28; G01S13/58; G01S13/87; G01S17/931
Domestic Patent References:
| JP2001264426A | ||||
| JP200046936A | ||||
| JP11118912A | ||||
| JP634753A |
Attorney, Agent or Firm:
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Kazuhiro Oyaku
Shunichi Ueda