An analog predistortion linearizer for rf amplifier 一種模擬預失真線性化射頻放大器
Predistortion is a widely used linearization technique because of its unique advantage , and the research of predistorting linearizer is becoming the hot research field 預失真技術是一種廣泛使用的線性化技術,基于預失真技術的線性化系統正逐步成為研究熱點。
The main studying of this dissertation is about cubic analog predistorer , digital predistortion linearizer based on look - up table ( lut ) technology and feedforward - predistortion linearization system . the original work and valuable results in this dissertation are as follows . 1 . a novel third - order distortion generator which can suppress the residual second - order intermodulation distortion ( imd2 ) is presented 本論文的研究分別涉及三階模擬預失真系統、查找表預失真系統和前饋預失真系統,其中有創(chuàng)新和有價值的工作主要體現在以下三個方面: 1 :對于采用二極管反向平行對的三階模擬預失真系統,本文提出了一種可以抑制駐留二階交調( imd2 )信號的新型三階擾動器。