Title:
Frequency-modulated continuous wave radar device
Document Type and Number:
Japanese Patent JP5978962
Kind Code:
B2
Abstract:
In a FMCW radar device, a transmission unit transmits a transmission signal that has a rising portion in which the frequency successively increases and a falling portion in which the frequency successively decreases. A reception unit receives a reception signal resulting from the transmission signal being reflected by a target and outputs a beat signal based on the transmission signal and the reception signal. A control unit determines whether or not three or more targets that have the same relative speed are present at the same orientation among a plurality of targets extracted from a plurality of peak frequencies in each of the rising portion and the falling portion of the beat signal, and when determined that three or more targets are present, gives notification that oscillation has occurred in a power supply bias circuit that supplies power supply voltage to the transmission unit or the reception unit.
Inventors:
Yasumatsu Masanobu
Application Number:
JP2012262381A
Publication Date:
August 24, 2016
Filing Date:
November 30, 2012
Export Citation:
Assignee:
株式会社デンソー
International Classes:
G01S13/34; G01S7/02; G01S13/93
Domestic Patent References:
| JP2009222472A | ||||
| JP2008209225A | ||||
| JP2014106120A | ||||
| JP2003177178A |
Foreign References:
| CN101490578A |
Attorney, Agent or Firm:
Patent Business Corporation Yuai Patent Office
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