发明授权
- 专利标题： Distortion compensation device, radio communication device, and distortion compensation method
- 专利标题（中）： 失真补偿装置，无线电通信装置和失真补偿方法
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申请号： US13088580申请日： 2011-04-18
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公开(公告)号： US08493144B2公开(公告)日： 2013-07-23
- 发明人: Hiroyoshi Ishikawa , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Kazuo Nagatani , Yasuyuki Oishi
- 申请人： Hiroyoshi Ishikawa , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Kazuo Nagatani , Yasuyuki Oishi
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Fujitsu Patent Center
- 优先权： JP2010-100174 20100423
- 主分类号： H03F1/26
- IPC分类号： H03F1/26
摘要：
A distortion compensation device includes a distortion compensation unit which compensates for a distortion generated in a power amplifier by using a polynomial in which a signal to be input into a power amplifier is raised to a power of a degree N (N is an integer larger than 0) and the raised signal is delayed by a delay number K (K is an integer larger than 0), and a polynomial adjusting unit which adjusts the degree N or the delay number K of the polynomial based on a comparison between a prescribed value, which indicates a degree of variation of the distortion generated in the power amplifier and a threshold value.
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