发明名称 |
TRACKING ANTENNA, TRACKING CONTROL METHOD, AND ITS PROGRAM |
摘要 |
PROBLEM TO BE SOLVED: To materialize high-speed and high-accuracy tracking control by directly detecting a directional error angle from a reception level and using algorithm for reducing the effect of variations in the reception level caused by weather and atmospheric temperature. SOLUTION: A directional direction varying means is driven to vary the directional direction of an antenna according to a directional-direction variable pattern for searching for the direction of a target. By driving the varying means, a reception signal of the antenna is input, with the directional direction of the antenna varying according to the variable pattern. A reception level is detected to integrate the detected reception level as to a prescribed integration interval. An integrated value of the reception level of respective integration intervals is output to calculate a reception level integral value ratio A between two integration intervals acquired. This value ratio A and a pattern parameter for determining the variable pattern are input to calculate the directional error angle e by using a prescribed calculation expression. The directional direction of the antenna is varied so as to correct the calculated directional error angle e. COPYRIGHT: (C)2008,JPO&INPIT
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申请公布号 |
JP2008215854(A) |
申请公布日期 |
2008.09.18 |
申请号 |
JP20070049887 |
申请日期 |
2007.02.28 |
申请人 |
NIPPON TELEGR & TELEPH CORP <NTT> |
发明人 |
YOSHIDA TOMIHIKO;SUEYOSHI TADAHIRO;TSUCHIDA TOSHIHIRO |
分类号 |
G01S3/42 |
主分类号 |
G01S3/42 |
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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