专利名称：Linearization method for amplifier, and
amplifier arrangement
发明人：Olli Tapio,Toni Neffling申请号：US09702922申请日：20001027公开号：US06741663B1公开日：20040525
专利附图：
摘要：The invention relates to a linearization method for an RF amplifier and anarrangement implementing the method. A difference between an output signal of theamplifier and an unpredistorted input signal supplied to the amplifier is formed from
baseband, quadrature components by means of a complex LMS algorithm in adaptationmeans. On the basis of the signal difference, the non-linearity of the amplifier isadaptively corrected before a quadrature modulator by changing the values of thecomplex quadrature components of the baseband signal by means of digitalpredistortion coefficients retrieved from a memory.
申请人：NOKIA CORPORATION
代理机构：Squire, Sanders & Dempsey, L.L.P.
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