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一种适合于CPM信号的盲均衡与调制指数盲估计的联合算法

Joint Algorithm for Simultaneous Blind Equalization and Modulation Index Estimation of CPM Signals
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摘要 CPM是一种非线性调制技术,常用的线性盲均衡算法难以直接用来对该类信号进行有效的均衡.本文通过分析传统常模准则用于CPM信号盲均衡时存在的问题,提出一种适合于全响应CPM信号的线性盲均衡与调制指数盲估计的联合算法.该算法在使用线性均衡器对CPM信号进行均衡的同时,可以对未知调制指数进行准确的估计.算法的性能在计算机仿真实验中得到验证. Continuous-phase modulated （CPM） signals, as nonlinear modulation schemes, can＇t be equalized directly by usual linear blind equalizers. In this paper, based on the analysis of solutions to the traditional CM criterion with input of CPM signals, a joint algorithrn is proposed for blind equalization and modulation index estimation of full-response CPM signals. The new algorithm can simultaneously achieve blind equalization of channel and estimation of unknown modulation index. Simulation results illustrate the performance of the proposed algorithm.
作者 杨琳 路友荣 戴旭初 徐佩霞
机构地区 中国科学技术大学电子工程与信息科学系 西南电子电信技术研究所
出处 《小型微型计算机系统》 CSCD 北大核心 2009年第9期1899-1902,共4页 Journal of Chinese Computer Systems
关键词 连续相位调制(CPM) 盲均衡 调制指数 常模 continuous phase modulation （CPM） blind equalization modulation index constant modulus （CM）
分类号 TN92 [电子电信—通信与信息系统]
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参考文献13

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小型微型计算机系统
2009年 第9期

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