发明名称 |
Radar detection method and apparatus |
摘要 |
A radar detection process includes computing a derivative of an FFT output signal to detect an object within a specified detection zone. In one embodiment, 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. Also described is a detection table containing indicators of the presence or absence of an object within a respective radar beam and processing cycle. At least two such indicators are combined in order to detect the presence of an object within the detection zone.
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申请公布号 |
US6577269(B2) |
申请公布日期 |
2003.06.10 |
申请号 |
US20010930869 |
申请日期 |
2001.08.16 |
申请人 |
RAYTHEON COMPANY |
发明人 |
WOODINGTON WALTER GORDON;DELCHECCOLO MICHAEL JOSEPH;PLEVA JOSEPH S.;RUSSELL MARK E.;VAN REES H. BARTELD |
分类号 |
B60R21/00;B60K31/00;B60Q1/26;B60Q1/52;G01S7/02;G01S7/03;G01S7/26;G01S7/285;G01S7/288;G01S7/35;G01S7/40;G01S13/02;G01S13/04;G01S13/28;G01S13/34;G01S13/48;G01S13/58;G01S13/72;G01S13/87;G01S13/89;G01S13/93;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;(IPC1-7):G01S13/02 |
主分类号 |
B60R21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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