| 适用于非常模信号的常数模新算法 |
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| 引用本文： | 饶 伟,易志平,许惠君,郭业才,谭文群,夏 非,刘剑冰.适用于非常模信号的常数模新算法[J].通信学报,2011(9):167-173. |
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| 作者姓名： | 饶 伟 易志平 许惠君 郭业才 谭文群 夏 非 刘剑冰 |
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| 作者单位： | 南昌工程学院信息工程学院;南京信息工程大学电子与信息工程学院; |
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| 基金项目： | 江西省教育厅自然科学基金项目(GJJ09609); 全国博士学位论文作者专项资金资助项目(200753); 国家自然科学基金资助项目(61102022)~~ |
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| 摘 要： | 常数模算法在对非常模信号进行均衡时,稳态均方误差无法收敛至零.对常数模算法中的代价函数进行修正,该代价函数能将非常模信号的多个幅度模值变换成单一幅度模值,从而使新算法的稳态均方误差为零.理论分析和仿真结果证明了新算法的优良性能.
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| 关 键 词： | 常数模算法 盲均衡 非常模信号 |
New constant modulus algorithm suitable for nonconstant modulus signals |
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| RAO Wei,SUN Hui,GUO Ye-cai,DENG Cheng-zhi,WANG Sheng-qian,TIAN Wei.New constant modulus algorithm suitable for nonconstant modulus signals[J].Journal on Communications,2011(9):167-173. |
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| Authors: | RAO Wei SUN Hui GUO Ye-cai DENG Cheng-zhi WANG Sheng-qian TIAN Wei |
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| Institution: | RAO Wei1,SUN Hui1,GUO Ye-cai2,DENG Cheng-zhi1,WANG Sheng-qian1,TIAN Wei1(1.College of Information Engineering,Nanchang Institute of Technology,Nanchang 330099,China,2.College of Electronic & Information Engineering,Nanjing University of Information Science & Technology,Nanjing 210044,China) |
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| Abstract: | The steady-state mean square error(MSE) of constant modulus algorithm(CMA) can not converge to zero for nonconstant modulus signals.By changing the multimodulus of nonconstant modulus source to single modulus,a new cost function was defined.And the new CMA based on such cost function can lead the steady-state MSE to zero.Theoretic analysis and computer simulation results demonstrate that the proposed algorithm offer high performance. |
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| Keywords: | constant modulus algorithm blind equalization nonconstant modulus signals |
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