发明名称 |
Equalization of a distributed pilot OFDM signal |
摘要 |
<p>A technique for equalizing a distributed pilot OFDM signal with decision feedback involves correlating a received OFDM signal against a pilot reference to obtain a coarse channel estimate, where the received OFDM signal includes a distributed pilot signal and an OFDM data signal. The received OFDM signal is equalized based on the coarse channel estimate and the distributed pilot signal is removed to generate a coarse data signal estimate. The coarse data signal estimate is removed from the received OFDM signal using the coarse channel estimate to generate a residual pilot signal. The residual pilot signal can then be correlated against the pilot reference to obtain a fine channel estimate. The received OFDM signal is equalized based on the fine channel estimate, and the distributed pilot signal is removed to produce a fine data signal estimate from which data is recoverable.</p> |
申请公布号 |
EP2693713(A2) |
申请公布日期 |
2014.02.05 |
申请号 |
EP20130173786 |
申请日期 |
2013.06.26 |
申请人 |
EXELIS, INC. |
发明人 |
CHARBONNEAU, TERRANCE W.;JOHNSTON, JOHN P.;REIDENBACH, BRUCE E.;BARNETT, GREGORY T. |
分类号 |
H04L25/03;H04L25/02;H04L27/26 |
主分类号 |
H04L25/03 |
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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