| DS/FH混合系统鲁棒自适应抗干扰技术 |
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| 引用本文： | 刘继承,邵定蓉,李署坚. DS/FH混合系统鲁棒自适应抗干扰技术[J]. 北京航空航天大学学报, 2003, 29(8): 734-736 |
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| 作者姓名： | 刘继承 邵定蓉 李署坚 |
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| 作者单位： | 北京航空航天大学 电子信息工程学院, 北京 100083 |
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| 摘 要： | 根据鲁棒估计理论,采用一种基于广义M估计的自适应滤波器消除DS/FH混合扩频系统中的部分带宽干扰,并推导了鲁棒自适应算法.比较了2种M估计中常用的ψ函数的性能:Huber函数(Huber function)、三权重函数(Tri-weight function).Monte Carlo 仿真结果表明,采用鲁棒自适应滤波器的DS/FH系统抗非稳态干扰性能显著提高,且具有拒绝特性的三权重函数性能明显优于Huber函数.
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| 关 键 词： | 扩频通信 鲁棒性 自适应滤波 广义M估计 窄带干扰抑制 |
| 文章编号： | 1001-5965(2003)08-0734-03 |
| 收稿时间： | 2002-06-17 |
| 修稿时间： | 2002-06-17 |
Robust adaptive interference rejection in DS/FH hybrid system |
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| Liu Jicheng,Shao Dingrong,Li Shujian. Robust adaptive interference rejection in DS/FH hybrid system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2003, 29(8): 734-736 |
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| Authors: | Liu Jicheng Shao Dingrong Li Shujian |
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| Affiliation: | School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | According to robust estimator theory, an adaptive filter based on generalized M estimation was used to reject partial band interference in DS/FH hybrid communication system, and the robust adaptive algorithm was deduced. The performance of two M estimation functions (Huber function and Tri-weight function) which are widely used in M estimation was also compared. Monte Carlo simulation results indicate that the performance of DS/FH system using robust adaptive filter is improved remarkably in nonstationary interference environment ,and the performance of Tri-weight function excels the Huber function's obviously. |
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| Keywords: | spread spectrum communication robustness adaptive filtering generalized M estimation partial band interference |
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