发明名称 |
Efficient back-end channel matched filter (CMF) |
摘要 |
An efficient method and apparatus for implementing a back-end channel matched filter in a receiver is disclosed. A typical channel matched filter embodiment includes a peak detector for establishing processing synchronization from a despread signal, a channel estimator producing a channel impulse response (CIR) estimate from the despread signal based on the synchronization by the peak detector and a back-end symbol combiner coherently combining dominant multipath components of the despread signal by weights based on the CIR estimate based on the synchronization by the peak detector to generate a decision variable. In a digital spread spectrum implementation, the despread signal operated on by the channel matched filter has been previously been correlated with a spreading sequence replica.
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申请公布号 |
US7349461(B2) |
申请公布日期 |
2008.03.25 |
申请号 |
US20030366040 |
申请日期 |
2003.02.13 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
GLAZKO SERGUEI A.;HURT JAMES Y.;LAI KUEI-CHIANG |
分类号 |
H04B1/00;H04B1/707;H04L1/00 |
主分类号 |
H04B1/00 |
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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