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| 改进CMA盲均衡算法的研究与分析 | |
| 引用本文： | 高丽娟,赵洪利,钱磊.改进CMA盲均衡算法的研究与分析[J].装备指挥技术学院学报,2006,17(6):89-93. |
| 作者姓名： | 高丽娟 赵洪利 钱磊 |
| 作者单位： | 1. 装备指挥技术学院,研究生管理大队,北京,101416 2. 装备指挥技术学院,科研部,北京,101416 3. 北京航天指挥控制中心,北京,102206 |
| 摘 要： | 目前,常数模算法(constant modulus algorithm,CMA)应用非常广泛,但它存在收敛速度慢,剩余误差大的缺点。为加快收敛速度,一旦误码率降低到足够低,算法必须切换到DD(decision—directed)算法,针对其存在的缺点,提出了一种改进的CMA算法,通过理论分析得出：该算法具有收敛速度快、剩余误差小的特点。通过利用Matlab对改进前、后2种算法的仿真,对算法的有效性进行了验证。 |
| 关 键 词： | 盲均衡 常数模算法 剩余误差 |
| 文章编号： | 1673-0127(2006)06-0089-05 |
| 修稿时间： | 2005年4月28日 |
Study and Analysis for a Modified Blind Equalization Algorithm of CMA |
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| GAO Lijuan,ZHAO Hongli,QIAN Lei.Study and Analysis for a Modified Blind Equalization Algorithm of CMA[J].Journal of the Academy of Equipment Command & Technology,2006,17(6):89-93. | |
| Authors: | GAO Lijuan ZHAO Hongli QIAN Lei |
| Abstract: | At present,constant modulus algorithm (CMA) is widely used,but it has disadvanta- ges that the convergence speed is slow and the residual error is large.In order to speed up the conver- gence process,this algorithm may be switch over to a decision-directed equalization algorithm once the error level is reasonably low.So a modified algorithm is proposed based on the CMA.By its theoreti- cal analysis,it is showed that it has the characteristics of fast convergence speed and small residual er- ror.It is proved that the modified algorithm is valid by simulating the two algorithms using Matlab. |
| Keywords: | blind equalization constant modulus algorithm residual error |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
