发明授权
- 专利标题: Reliable position location in memory limited environment
- 专利标题(中): 可靠的位置在记忆体有限的环境中
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申请号: US09150409申请日: 1998-09-09
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公开(公告)号: US06195041B1公开(公告)日: 2001-02-27
- 发明人: William Gardner , Avneesh Agrawal , Gilbert C. Sih , Qiuzhen Zou , Inyup Kang
- 申请人: William Gardner , Avneesh Agrawal , Gilbert C. Sih , Qiuzhen Zou , Inyup Kang
- 主分类号: G01S502
- IPC分类号: G01S502
摘要:
The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment comprises a method for performing position location in a wireless communication system using a set of signals transmitted from a set of satellites including the steps of receiving signal samples, rotating an acquisition code by a first rotation amount yielding a rotated acquisition code, despreading said signal samples using rotated acquisition code yielding despread data, accumulating said despread data over a first duration yielding partially accumulated data, rotating said partially accumulated data by a second rotation amount yielding rotated data and accumulating said rotated data.
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