火力与指挥控制Issue(6)：5-8,4.
稳健水声信道判决反馈盲均衡算法研究
Research on a Robust Decision Feedback Blind Equalization Algorithm Used in Underwater Acoustic Channels
摘要
Abstract
Doppler frequency shift and a lot of impulse noises existing in the underwater acoustic channels will deteriorate the robustness and anti multipath effects of the decision feedback equalization algorithm. Aiming to improve the robustness of decision feedback equalization algorithm,this article brings forward one new equalization algorithm which takes Euclid norm of changes in both forward and feedback equalization filters as the cost function. Also,the algorithm includes DD、PLL and square decision technique to achieve better performances. The results of simulation show that this new decision feedback equalization algorithm performs stronger robustness as well as great convergence ability and fast convergence speed and maintains the advantages of traditional decision feedback equalizer.关键词
水声通信/判决反馈/盲均衡/多径效应Key words
underwater acoustic communication/decision feedback/blind equalization/multipath effect分类
信息技术与安全科学引用本文复制引用
冯成旭,刘忠,罗亚松..稳健水声信道判决反馈盲均衡算法研究[J].火力与指挥控制,2014,(6):5-8,4.基金项目
国家自然科学基金（61101205）；国家“八六三”计划基金资助项目 （）
