A Low-Cost Echo Cancellation Algorithm in DTMB On-Channel Repeater

摘要：

In this paper, we use adaptive filter to realize the echo cancellation strategy in On-Channel Repeater (OCR) based on the National Standard of China for Digital Terrestrial Mujtimedia Broadcasting (DTMB). In order to reduce the computational complexity and solve the drawbacks of convergence and steady state characteristics of the conventional fix step size Least Mean Square (LMS) algorithm, tbis article introduces a proposed variable step size LMS algorithm. The simulation result indicates that this algorithm costs fewer hardware resources that can be easily implemented by FPGA and has a better performance in convergence and steady state echo cancellation compared with the conventional LMS algorithm.

关键词： signal processing adaptive filter LMS echo cancellation DTMB

作者: Rui Qian Wei Xia Zishu He Chang Liu

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 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 1344-1348

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）