发明名称 |
Acquisition and tracking filter for spread spectrum signals |
摘要 |
The present invention has an object to provide a filter circuit largely reducing electric power to consume compared with a conventional one, as well as realizing the first acquisition in enough high speed. In a filter circuit according to the present invention, a matched filter and a sliding correlator are used in parallel, the first acquisition and holding is executed by a matched filter, a correlating operation is executed by a sliding correlator and a voltage is stopped to supply to the matched filter. <IMAGE> |
申请公布号 |
EP0757450(A2) |
申请公布日期 |
1997.02.05 |
申请号 |
EP19960112313 |
申请日期 |
1996.07.30 |
申请人 |
YOZAN INC.;SHARP KABUSHIKI KAISHA |
发明人 |
ZHOU, CHANGMING;SHOU, GUOLIANG;YAMAMOTO, MAKOTO;TAKATORI, SUNAO |
分类号 |
H03H17/02;H03H11/04;H04B1/709;H04J13/00;H04L7/00;H04L7/10 |
主分类号 |
H03H17/02 |
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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