发明名称 Distortion compensating apparatus and method
摘要 The distortion compensating apparatus which adaptively updates a distortion compensation coefficient for an amplifier based on a difference between input and output signals of the amplifier, comprises: a distortion amount detector which detects the amount of distort of an output signal of the amplifier; a parameter holder which holds a parameter having been set therein; a parameter corrector which corrects the parameter in such a manner that the distortion amount detected by the detector is improved; and a distortion amount corrector which corrects the distortion amount detected by the detector in such a manner that the distortion amount is reduced by an offset amount according to a detection error. This arrangement makes it possible to accurately set the parameter relating to difference detection which is a factor of updating of distortion compensation coefficients of the distortion compensating apparatus.
申请公布号 US7443923(B2) 申请公布日期 2008.10.28
申请号 US20060437168 申请日期 2006.05.19
申请人 FUJITSU LIMITED 发明人 SHAKO HIDEHARU;FUNYU YASUHITO;OHBA TAKESHI
分类号 H04L25/49 主分类号 H04L25/49
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