发明授权
US08964815B2 Method and apparatus for radio synchronization detection in a rake receiver
有权
耙式接收机中无线电同步检测的方法和装置
- 专利标题: Method and apparatus for radio synchronization detection in a rake receiver
- 专利标题(中): 耙式接收机中无线电同步检测的方法和装置
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申请号: US13349955申请日: 2012-01-13
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公开(公告)号: US08964815B2公开(公告)日: 2015-02-24
- 发明人: Qun Shi , Jonathan E. Rose , Ning Hsing Lu , Charles A. Simmons, Jr.
- 申请人: Qun Shi , Jonathan E. Rose , Ning Hsing Lu , Charles A. Simmons, Jr.
- 申请人地址: US VA McLean
- 专利权人: Exelis Inc.
- 当前专利权人: Exelis Inc.
- 当前专利权人地址: US VA McLean
- 代理机构: Edell, Shapiro & Finnan, LLC
- 主分类号: H04B1/00
- IPC分类号: H04B1/00
摘要:
Enhanced reception in a communication system is achieved by performing radio synchronization (SYNC) detection after multipath signal components are combined via a Rake combiner. In a communication system comprising a transmitter and a receiver, plural multipath signal components of a signal transmitted by the transmitter are received by the receiver. The plural multipath signal components are correlated with a known spreading code (e.g. a PN code). The correlated multipath signals are analyzed to identify plural correlation peaks and those correlation peaks that exceed a multipath threshold are selected. The selected correlation peaks are combined (i.e., coherently combined) to produce a combined signal. A synchronization event is declared when the combined signal exceeds an adjusted synchronization threshold and the combined signal is then decoded.
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