发明名称 |
INTER-SYMBOL INTERFERENCE CANCELLER |
摘要 |
The invention concerns a device for cancelling inter-symbol interference in a sampled digital signal. The device comprises a first filter (100) whereof the optimal transfer function is identical to that of the transmission channel and which receives a sequence of samples ({d SIMILAR n}n ELEMENT N) representing the digital signal emitted at the transmission channel input, a substracting circuit (110) for subtracting from the sequence of input samples ({rn} n ELEMENT N) the output ({d SIMILAR n}n ELEMENT N) of the first filter, a second filter (120) adapted to the transmission channel, whereof the optimal transfer function is H*(f), which receives the output ({en}n ELEMENT N) of the substractor circuit (110), and an adder circuit (130) for adding the output of the second filter (120) with the sequence of samples ({d SIMILAR n}n ELEMENT N) representing the digital signal emitted at the input of said transmission channel thereby generating a sequence of complex symbols ({d APPROX n}n ELEMENT N) free of inter-symbol interference.
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申请公布号 |
WO03036893(A1) |
申请公布日期 |
2003.05.01 |
申请号 |
WO2002FR03624 |
申请日期 |
2002.10.23 |
申请人 |
FRANCE TELECOM (SA);LAOT, CHRISTOPHE;LANGLAIS, CHARLOTTE;HELARD, MARYLINE |
发明人 |
LAOT, CHRISTOPHE;LANGLAIS, CHARLOTTE;HELARD, MARYLINE |
分类号 |
H04B1/10;H04L1/00;H04L25/03;(IPC1-7):H04L25/03;H04B7/08 |
主分类号 |
H04B1/10 |
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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