发明申请
- 专利标题: APPARATUS AND METHOD FOR CORRECTING NON-LINEAR DISTORTION BASED ON CHARACTERISTIC MODELING OF HIGH POWER AMPLIFIER
- 专利标题(中): 基于大功率放大器特性建模的非线性失真校正装置及方法
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申请号: US12089475申请日: 2006-09-28
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公开(公告)号: US20090219088A1公开(公告)日: 2009-09-03
- 发明人: Jae-Hyun Seo , Heung-Mook Kim , Yong-Tae Lee , Ho-Min Eum , Sung-Ik Park , Seung-Won Kim , Soo-In Lee
- 申请人: Jae-Hyun Seo , Heung-Mook Kim , Yong-Tae Lee , Ho-Min Eum , Sung-Ik Park , Seung-Won Kim , Soo-In Lee
- 申请人地址: KR Daejon
- 专利权人: Electronics and Telecommunications Research
- 当前专利权人: Electronics and Telecommunications Research
- 当前专利权人地址: KR Daejon
- 优先权: KR10-2005-0094438 20051007
- 国际申请: PCT/KR2006/003885 WO 20060928
- 主分类号: H03F1/26
- IPC分类号: H03F1/26
摘要:
An apparatus for correcting a non-linear distortion includes a pre-distorter for pre-distorting a transmit signal inputted from an external apparatus based on pre-distortion characteristics outputted from a pre-distortion characteristic predictor; a modulator for modulating the pre-distorted signal to thereby generate a modulated signal; a frequency up-converter for up-converting a frequency of the modulated signal to thereby generate an up-converted signal; a high power amplifier for amplifying the up-converted signal to a high power amplified signal; a frequency down-converter for down-converting a frequency of the high power amplified signal, thereby generate a down-converted signal; a demodulator for demodulating the down-converted signal, to thereby generate a demodulated signal; a high power amplifying characteristic predictor for predicting characteristics of the high power amplifier based on the pre-distorted signal and the demodulated signal; and a pre-distortion characteristic predictor for predicting the pre-distortion characteristics based on the pre-distorted signal and the predicted high power amplifying characteristics.