PREDISTORTER FOR COMPENSATING OF NONLINEAR DISTORTION AND METHOD FOR THE SAME
摘要
PURPOSE: A pre-distortion apparatus and method for compensating non-linear distortion are provided to stably compensate the non-linear characteristics of a non-linear device if the non-linear characteristics of the non-linear device are changed by the lapse of times or environment. CONSTITUTION: A pre-distortion filter(110) provides inputting signals and outputting signals which pre-distorts the inputting signals based on a filter which is modeled using the past values of the inputting signals. A pre-distortion output estimating part(120) estimates the characteristics of a non-linear device based on signals processed in the non-linear device and the outputting signals and calculates the desired outputting signals of the pre-distortion filter based on the estimated characteristics of the non-linear device. An adaptive algorithm driving part(130) compares the outputting signals and the desired outputting signals.
申请公布号
KR20120070047(A)
申请公布日期
2012.06.29
申请号
KR20100131441
申请日期
2010.12.21
申请人
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE