发明名称 |
Device and method for predistorting a transmission signal to be transmitted via a nonlinear transmission path |
摘要 |
A device for predistorting a transmission signal to be transmitted over a nonlinear transmission path comprises an estimator for determining an error signal depending on the transmission signal and a previously registered transfer characteristic of the nonlinear transmission path. The error signal represents an estimate of an error generated due to the nonlinearity of the trans-mission path. A time-dispersive element is provided to produce a correction signal by a temporal extension of the error signal. A combiner is provided to combine the transmission signal and the correction signal. As a result of the temporal extension of the error signal, an error signal segment in the frequency spectrum of a transmission signal transmitted by the nonlinear transmission path is shifted away from the useful frequency range of the transmission signal.
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申请公布号 |
US7170951(B1) |
申请公布日期 |
2007.01.30 |
申请号 |
US20020018755 |
申请日期 |
2002.04.30 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. |
发明人 |
PERTHOLD RAINER;HOFMAN MAXIMILIAN;ROGALSKY INGO;GERHAFUSER HEINZ |
分类号 |
H04K1/02;H03F1/32;H03F3/24;H04L25/03;H04L25/49;H04L27/26;H04L27/36 |
主分类号 |
H04K1/02 |
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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