发明名称 |
DS/CDMA receiver using moving-averaged pilot signals for weighting and phase rotation of orthogonal data symbol vectors |
摘要 |
In a direct sequence spread spectrum receiver, spread orthogonal data signals and spread orthogonal pilot signals are correlated with orthogonal despreading sequences at a chip rate. These despread signals are integrated at a symbol rate to produce orthogonal data symbols and orthogonal pilot symbols. A predetermined number of pilot symbols of each phase component are moving-averaged. Each phase component of the orthogonal data symbols is weighted with the moving average value of the corresponding phase component of the pilot symbols, and summed with the other weighted component of the data symbols to produce an output signal of the spread spectrum receiver.
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申请公布号 |
US5548613(A) |
申请公布日期 |
1996.08.20 |
申请号 |
US19940365962 |
申请日期 |
1994.12.29 |
申请人 |
NEC CORPORATION |
发明人 |
KAKU, TOMOYA;O'REGAN, SEAN |
分类号 |
H04B1/707;H04B1/76;H04B7/26;H04L7/00;(IPC1-7):H04B1/707 |
主分类号 |
H04B1/707 |
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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