LINEARIZATION METHOD FOR AMPLIFIER, AND AMPLIFIER

专利名称：LINEARIZATION METHOD FOR AMPLIFIER,

AND AMPLIFIER ARRANGEMENT

发明人：TAPIO, Olli,NEFFLING, Toni申请号：EP99919304.8申请日：19990428公开号：EP1075731B1公开日：20040901

摘要：The invention relates to a linearization method for an RF amplifier (104) and anarrangement implementing the method. A difference between an output signal of theamplifier (104) and an unpredistorted input signal supplied to the amplifier (104) isformed from baseband, quadrature components by means of a complex LMS algorithmin adaptation means (120). On the basis of the signal difference, the non-linearity of theamplifier (104) is adaptively corrected before a quadrature modulator (102) by changingthe values of the complex quadrature components of the baseband signal by means ofdigital predistortion coefficients (F) retrieved from a memory (108).

申请人：NOKIA CORP

地址：FI

国籍：FI

代理机构：Karppinen, Olavi Arto

更多信息请下载全文后查看