发明授权
- 专利标题: Spread-spectrum signal receiving method and spread-spectrum signal receiving apparatus
- 专利标题(中): 扩展频谱信号接收方法和扩频信号接收装置
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申请号: US78580申请日: 1998-05-14
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公开(公告)号: US6154487A公开(公告)日: 2000-11-28
- 发明人: Hideshi Murai , Hisao Tachika
- 申请人: Hideshi Murai , Hisao Tachika
- 申请人地址: JPX Tokyo
- 专利权人: Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人: Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX9-131047 19970521; JPX10-030004 19980212
- 主分类号: H04B1/707
- IPC分类号: H04B1/707 ; H04B1/7075 ; H04L7/00 ; H04L27/30
摘要:
A spread-spectrum signal receiving method and apparatus in which a correlation operation is performed for obtaining a correlation between a base-band component of a received spread-spectrum signal and a spread code, so as to demodulate the received signal. In the method, a correlation operation between the spread code and the base-band component, and a correlation operation at a timing equal to a timing difference between the spread code and the base-band component in the former correlation operation step, the timing difference being 1/2 of a spread-code interval, are performed. Then, based on results obtained in these correlation operations, a correlation operation result at the timing point where a timing difference between the spread code and the base-band component is less than 1/2 of the spread-code interval, is estimated.
公开/授权文献
- USD405543S Wall block 公开/授权日:1999-02-09
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