PURPOSE: A digital pre-distortion device and a method thereof are provided to simultaneously achieve high-linearity and high-efficiency. CONSTITUTION: A DPD(Digital Pre-Distortion) algorithm execution unit(120) calculates the maximum output value and average output value of an output signal for an input signal of a power amplifier during a predetermined period. The DPD algorithm execution unit obtains the reversed function of the output function based on a reference value between an average input value and a maximum input value. A pre-compensation device(110) distorts a source input signal by using information corresponding to the reversed function of the output signal. The pre-compensation device inputs the pre-distortion signal as an input signal of the power amplifier. [Reference numerals] (110) Pre-compensation device; (112) Look-up table; (120) DPD algorithm execution unit
申请公布号
KR20130063918(A)
申请公布日期
2013.06.17
申请号
KR20110130541
申请日期
2011.12.07
申请人
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE