AUTOMOTIVE RADAR SYSTEM AND TECHNIQUE

Japanese Patent JP2011197011

A

To vary coverage of a detection zone by changing a range gate in each antennal beam.

A radar detection process includes computing a derivative of an FFT output signal to detect an object within a specified detection zone. A zero crossing in the second derivative of the FFT output signal indicates the presence of an object. The range of the object is determined as a function of the frequency at which the zero crossing occurs. Moreover, a detection table containing indicators of the presence or absence of an object within respective radar beams and processing cycles is described. At least two such indicators are combined in order to detect the presence or absenceof an object within the detection zone.

WOODINGTON WALTER GORDON
DELCHECCOLO MICHAEL JOSEPH
PLEVA JOSEPH S
RUSSELL MARK E
VAN REES H BARTELD
HANSON JAMES T

JP2011141674A

October 06, 2011

June 27, 2011

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VALEO RADAR SYSTEMS INC

B60R21/00; G01S13/34; B60K31/00; B60Q1/26; B60Q1/52; G01S7/02; G01S7/03; G01S7/26; G01S7/285; G01S7/35; G01S7/40; G01S13/04; G01S13/28; G01S13/48; G01S13/87; G01S13/89; G01S13/931; H01Q1/32; H01Q1/38; H01Q1/42; H01Q3/24; H01Q3/26; H01Q3/40; H01Q13/06; H01Q13/10; H01Q21/00; H01Q21/06; H01Q25/00; H03F1/30; H03H7/01; H03H21/00; G01S7/288; G01S13/02; G01S13/58; G01S13/72

JPH05284019A	1993-10-29
JPH07288428A	1995-10-31
JPH11512180A	1999-10-19
JPH08304532A	1996-11-22

US5252981A

1993-10-12

Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Takako Ito

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