发明授权
- 专利标题: First significant path detection
- 专利标题(中): 第一次重要的路径检测
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申请号: US12326762申请日: 2008-12-02
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公开(公告)号: US08891698B2公开(公告)日: 2014-11-18
- 发明人: Stefania Sesia , Giuseppe Montalbano , Pierre Demaj
- 申请人: Stefania Sesia , Giuseppe Montalbano , Pierre Demaj
- 申请人地址: CH Plan-les-Ouates
- 专利权人: ST-Ericsson SA
- 当前专利权人: ST-Ericsson SA
- 当前专利权人地址: CH Plan-les-Ouates
- 代理机构: Leffler Intellectual Property Law, PLLC
- 优先权: EP07122144 20071203
- 主分类号: H03D1/04
- IPC分类号: H03D1/04 ; H04B1/7115 ; H04B1/7117
摘要:
A scheme determines the first significant path (FSP) of a received multipath signal, from data defining the relative delay and the amplitude of the individual signal paths occurring in a series of time frames. The scheme includes filtering the data to spread the signal paths, performing a persistence test between frames to reject spurious signal paths, combining the energy of the signal paths in a frame, applying a test to determine the time at which the combined energy satisfies a criterion, and selecting the FSP dependent on that time. The combined energy may be evaluated within a sliding window, and the position of the window within the frame determined that maximizes the combined energy. Alternatively, the combined energy may be evaluated as the cumulative energy through the frame, and the position determined at which the cumulative energy reaches a threshold.
公开/授权文献
- US20090180522A1 FIRST SIGNIFICANT PATH DETECTION 公开/授权日:2009-07-16