发明名称 |
Frequency domain equalization of communication signals |
摘要 |
A system and method for estimating a channel spectrum. The method includes: (a) receiving an input signal from a channel, where the input signal includes one or more major echoes and zero or more minor echoes introduced by the channel; (b) identifying the one or more major echoes present in the input signal; (c) identifying the minor echoes from a filtered autocorrelation function of the input signal in response to a determination that there is only one major echo; (d) identifying the minor echoes from a filtered power spectrum of the input signal in response to a determination that there is more than one major echo; (e) computing a channel spectrum estimate from the major echoes and minor echoes; where the channel spectrum estimate is usable to remove at least a portion of the one or more major echoes and one or more minor echoes from the input signal.
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申请公布号 |
US7346013(B2) |
申请公布日期 |
2008.03.18 |
申请号 |
US20030621293 |
申请日期 |
2003.07.17 |
申请人 |
COHERENT LOGIX, INCORPORATED |
发明人 |
GARMANY JAN D.;HALLIDY WILLIAM H. |
分类号 |
H04B3/20;H04B7/005;H04L27/26 |
主分类号 |
H04B3/20 |
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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