| 基于最大峰度准则和判决引导的短波信道盲均衡算法 |
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| 引用本文： | 刘郁林,朱行涛,敖卫东,王康年,陈于平.基于最大峰度准则和判决引导的短波信道盲均衡算法[J].安徽大学学报(自然科学版),2009,33(3). |
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| 作者姓名： | 刘郁林 朱行涛 敖卫东 王康年 陈于平 |
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| 作者单位： | 1. 重庆通信学院,军事信息工程系,重庆,400035
2. 通信指挥学院,信息作战系,湖北,武汉,430010 |
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| 基金项目： | 国家自然科学基金资助项目(60672157;60672158) |
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| 摘 要： | 通过研究短波信道中的Watterson模型，将线性系统盲均衡中的最大峰度准则与输出信号的判决引导均方误差相结合，作为短波信道的盲均衡算法．针对传统梯度搜索方法容易陷入局部收敛问题，提出利用实数编码的遗传算法对准则函数进行最优化搜索．仿真实验表明，该算法收敛速度快和精确度高，能够大大提高均衡后的输出信噪比．
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| 关 键 词： | 短波信道 盲均衡 最大峰度准则 判决引导 遗传算法 |
Blind equalization algorithm of short-wave channel based on kurtosis criterion and decision directed algorithm |
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| LIU Yu-lin,ZHU Xing-tao,AO Wei-dong,WANG Kang-nian,CHEN Yu-ping.Blind equalization algorithm of short-wave channel based on kurtosis criterion and decision directed algorithm[J].Journal of Anhui University(Natural Sciences),2009,33(3). |
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| Authors: | LIU Yu-lin ZHU Xing-tao AO Wei-dong WANG Kang-nian CHEN Yu-ping |
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| Institution: | 1.Department of Militray Information Engineering;Chongqing Communication College;Chongqing 400035;China;2.Department of Information Operations;Commanding Communications Academy;Wuhan 430010;China |
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| Abstract: | A new blind equalization algorithm for Watterson model was proposed,based on kurtosis criterion which was often used in linear blind equalization problem and decision directed of output signal.To overcome the drawback of traditional gradient search approaches,likely falling into local minimum,the real coded genetic algorithm was adopted to search the optimum solution.Simulation results demonstrated the algorithm not only had fast convergence rate and high accuracy,but also could greatly improved the output ... |
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| Keywords: | short-wave channel blind equalization maximum kurtosis criterion decision directed genetic algorithm |
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