Identification and Pre-distortion for High Power Amplifiers With Memory

摘要：

An identification method is proposed to estimate for the characteristics of high power amplifiers (HPA) with memory in orthogonal frequency division multiplexing (OFDM) communication systems. The Wiener-Hammerstein model (WHM) is adopted to describe the input-output relationship of unknown HPA and a polynomial model with memory is used to approximate the HPA expressed by WHM in base-band. Furthermore, the order and memory length of polynomial model are chosen by Akaikes information criterion (AIC), and the RLS algorithm is used to estimate parameters of HPA in on-line manner. Finally, the effectiveness of the proposed identification method is validated by numerical simulation example.

关键词： Power amplifier Wiener-Hammerstein model,Identification OFDM.

作者: Y.M.Ding J.K.Wang

作者单位: Liaoning Key Lab of Intelligent Information Processing Institute of information Engineering,Dalian University,Dalian 116622,China

会议类型: 国际会议

会议名称: The IET 2nd International Conference on Wireless,Mobile & Multimedia Networks(第二届IET国际无线移动多媒体网络会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）