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| 一种变步长双模式盲均衡算法的研究 | |
| 引用本文： | 杨斌,郭黎利,吴浩江.一种变步长双模式盲均衡算法的研究[J].信息技术,2009(2). |
| 作者姓名： | 杨斌 郭黎利 吴浩江 |
| 作者单位： | 1. 海军驻北京地区通信军事代表室,北京,100841 2. 哈尔滨工程大学信息与通信工程学院,哈尔滨,150001 3. 北京圣非凡电子系统技术开发有限公司,北京,100039 |
| 摘 要： | 在移动通信中,物体的高动态性引起多普勒频移,应用恒模( CMA)算法,不能克服波频率偏移引起的接收信号相位旋转.针对其存在的缺点,给出了一种变步长双模式盲均衡算法,该算法将修正常数模算法(Modify constant modulus algorithm,MCMA)和判决引导(Decision directed,DD)算法有机结合,不仅具有较快的收敛速度,而且能在去除码间干扰的同时有效克服相位旋转和一定范围的载波频率偏移,具有很好的实用性.通过计算机仿真验证了该算法的性能. |
| 关 键 词： | 信道盲均衡 变步长 双模式 |
Study on a varying-step dual-mode blind equalization algorithm |
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| YANG Bin,GUO Li-li,WU Hao-jiang.Study on a varying-step dual-mode blind equalization algorithm[J].Information Technology,2009(2). | |
| Authors: | YANG Bin GUO Li-li WU Hao-jiang |
| Affiliation: | 1.Correspondence Military Representative Room of Navy in Beijing Area;Beijing 100841;China;2.School of Information and Communication Engineering;Harbin Engineering University;Harbin 150001;3.Beijing Sheng-feifan Electronic System Technology Development Co.;Ltd.;Beijing 100039;China |
| Abstract: | In the mobile communication,Doppler shift was involved because of the high dynamic state of the aircraft,producing phase rotation of received signal. It is difficult to overcome the phase rotation to use the CMA algorithm. In order to speed up the convergence capability,a variable step and dual mode blind equalization algorithm is proposed here,the proposed algorithm units the modified constant modulus algortthm and decision directed algortthm,it can overcome the phase rotation and a small carrier frequecnc... |
| Keywords: | MCMA-DD-LMS |
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