发明名称 |
Diversity receiver and diversity receiving method |
摘要 |
In a diversity receiver comprising an AGC section for controlling the gain of a tuner, an equalizer equalizes an outputted signal from a fast Fourier transformer. A reliability calculator calculates the reliability value of each of carriers by an equalized pilot signal obtained from the equalizer. A reliability value corrector corrects the reliability value by outputted information from the AGC section. A carrier selecting/combining section performs one of selecting and weighting combining for the carrier in a branch in accordance with the corrected reliability value. When a Viterbi decoder is provided, the Viterbi decoder weights an output from the carrier selecting/combining section with a new reliability value to perform maximum likelihood decoding. It is possible to prevent a reliability value which does not reflect an actually received power from being calculated as a result of increasing a power by an AGC in spatial diversity for every OFDM or FDM demodulated carrier. Even in the case of mobile reception, data with high reliability can be decoded.
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申请公布号 |
US2004229581(A1) |
申请公布日期 |
2004.11.18 |
申请号 |
US20030680439 |
申请日期 |
2003.10.08 |
申请人 |
MIZOGUCHI YOSHITAKA;KISODA AKIRA;TANIGUCHI TOMOHIKO;YAGI TETSUYA |
发明人 |
MIZOGUCHI YOSHITAKA;KISODA AKIRA;TANIGUCHI TOMOHIKO;YAGI TETSUYA |
分类号 |
H04B7/08;H04L25/02;H04L25/03;H04L27/26;(IPC1-7):H04B17/02 |
主分类号 |
H04B7/08 |
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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