An Algorithm for Precisely Estimating Loop-Delay in Digital Predistortion System

摘要：

In digital predistortion (DPD) design, loop-delay estimation for synchronization is an important work. In this paper, an algorithm for precisely estimating loop-delay in DPD system is proposed. The whole algorithm consists of integer loop-delay estimation and fractional loop-delay estimation. Amplitude-difference correlation function is used to estimate the integer loop-delay estimation. The fractional loop-delay estimation gets the estimate through recursive least squares (RLS) algorithm based on interpolation filter structure. Finally, a series of simulations prove the validity of the algorithm and the effect on the DPD system.

作者: Xiaowei Kong Zishu He Wei Xia

作者单位: School of Electronic Engineering University of Electronic Science and Technology of China Chengdu, Sichuan, China

会议类型: 国际会议

会议名称: 2010 International Conference on Communications,Circuits and Systems(2010年通信、电路与系统国际会议)

会议地点: 成都

会议语种:英文

页码: 318-322

在线出版日期: 2010-06-28（万方平台首次上网日期，不代表论文的发表时间）