发明名称 |
Method and apparatus for fast converging affine projection based echo canceller |
摘要 |
An adaptive filter estimates a channel weight vector of an echo channel using an affine projection (AP) update. The echo channel receives a send input sequence and a receive input sequence. The channel weight vector has first and second lengths when the adaptive filter operates in a first adaptation mode and a second adaptation mode, respectively. A delay estimator determines a delay in the echo channel using the adaptive filter in the first adaptation mode.
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申请公布号 |
US2002071547(A1) |
申请公布日期 |
2002.06.13 |
申请号 |
US20010947804 |
申请日期 |
2001.09.06 |
申请人 |
BERSHAD NEIL;BIST ANURAG;HSIEH STAN |
发明人 |
BERSHAD NEIL;BIST ANURAG;HSIEH STAN |
分类号 |
H04B3/23;(IPC1-7):H04M9/08 |
主分类号 |
H04B3/23 |
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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