| 自适应变步长恒包络算法AS-CMA用于DS/CDMA中盲干扰抑制 |
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| 引用本文： | 孙丽萍,胡光锐. 自适应变步长恒包络算法AS-CMA用于DS/CDMA中盲干扰抑制[J]. 上海交通大学学报, 2003, 37(6): 843-845,849 |
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| 作者姓名： | 孙丽萍 胡光锐 |
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| 作者单位： | 上海交通大学,电子工程系,上海,200030;上海交通大学,电子工程系,上海,200030 |
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| 基金项目： | 国家自然科学基金资助项目 (60 172 0 18) |
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| 摘 要： | 基于直接序列码分多址(DS／CDMA)系统中的多址干扰(MAI)和窄带干扰(NBI),提出了一种变步长盲恒包络算法(AS-CMA),并同自适应变步长最小均方算法(AS-LMS)进行了比较。仿真结果表明,AS—CMA算法能够自动地适应环境的变化,收敛性和稳定性均优于AS—LMS算法。
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| 关 键 词： | 码分多址 恒包络算法 盲干扰抑制 |
| 文章编号： | 1006-2467(2003)06-0843-03 |
Adaptive Step-Size Constant Modulus Algorithm for Blind Interference Suppression in DS-CDMA Systems |
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| SUN Li ping,HU Guang rui. Adaptive Step-Size Constant Modulus Algorithm for Blind Interference Suppression in DS-CDMA Systems[J]. Journal of Shanghai Jiaotong University, 2003, 37(6): 843-845,849 |
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| Authors: | SUN Li ping HU Guang rui |
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| Abstract: | This paper presented a blind adaptive step size constant modulus algorithm (AS CMA) for suppression of multiple access interference (MAI) and narrow band interference (NBI) in direct sequence/code division multiple access (DS/CDMA) systems and compared this algorithm with adaptive step size LMS algorithm. The simulations indicate that the performance of this algorithm is better than that of AS LMS in convergence and stability and it can adapt to the changes of the environment. |
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| Keywords: | code division multiple access (CDMA) const modulus algorithm blind interference rejection |
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