【摘要】 介绍了一种可识别HPA记忆效应的数字预失真器的结构、特点,以Hammerstein预失真器为例仿真了可识别功放记忆效应的基带数字预失真器,并在数字电视发射机功放线性化中加以应用,结果表明记忆效应预失真结构应用在数字电视发射机功放的线性化中可以取得令人满意的效果。更多还原

【Abstract】 In this paper, the structure and character of Digital Predistortion (DPD) which can identify HPA with memory effectsis introduced. Then the simulation of a Hammerstein DPD applied in a DTV transmitter HPA linearization is presented. It is veri-fied that the application of memory DPD structure for power amplifiers in Digital TV transmitter can achieve a satisfied result.更多还原