A digital baseband predistorter based on power series model

被引：0
|
作者：
Fu, B [1 ]
Chen, ZW [1 ]
机构：
[1] Tsing Hua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
来源：
2004 4th INTERNATIONAL CONFERENCE ON MICROWAVE AND MILLIMETER WAVE TECHNOLOGY PROCEEDINGS | 2004年
关键词：
predistortion; LUT; power series;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The investigation of digital high-definition television (HDTV) transmitter becomes more and more important for the DMB-T standard is being certificated in China. The power amplifier (PA) linearization circuit is the key tache of the whole transmitter chain. Digital predistortion of baseband signal is a well-known method of power amplifier common linearization techniques used in HDTV transmitter. This paper proposes a new digital baseband predistorter based on power series model of PA. The characteristics of PA can be approximately same in a relatively long time, the predistorter with none loop or feedback path in this paper is just very compatible. Simulations with DVB-T source show that the adjacent channel interference (ACI) performs a satisfying result of -60 dBc.
引用
收藏
页码：804 / 807
页数：4
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