参考信号耦合有用信号对干扰对消系统的影响及其抑制
Influence and its suppression of desired signal coupling to reference signal to interference cancellation system
- 通信学报 2015年36卷第9期 页码：98-108
- 作者机构：
1. 湖北工业大学 太阳能高效利用湖北省协同创新中心，湖北 武汉 430068
2. 湖北工业大学 电气与电子工程学院，湖北 武汉 430068
3. 海军工程大学 舰船综合电力技术国防科技重点实验室，湖北 武汉 430033
- 作者简介：
[ "蒋云昊（1977-），男，湖北工业大学讲师，主要研究方向为自适应干扰对消技术、电力电子技术应用。" ]
[ "赵治华（1962-），男，海军工程大学教授、博士生导师，主要研究方向为电磁干扰和抑制、电磁场理论和自适应干扰对消技术。" ]
- 基金信息：太阳能高效利用湖北省协同创新中心开放基金资助项目(HBSKFZD2014013);湖北工业大学高层次人才基金资助项目(BSQD13026)
DOI：10.11959/j.issn.1000-436x.2015205
中图分类号： TN911.4-
网络首发：2015-09，
纸质出版：2015-09-25
- 稿件说明：
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蒋云昊, 赵治华. 参考信号耦合有用信号对干扰对消系统的影响及其抑制[J]. 通信学报, 2015,36(9):98-108.
Yun-hao JIANG, Zhi-hua ZHAO. Influence and its suppression of desired signal coupling to reference signal to interference cancellation system[J]. Journal on Communications, 2015, 36(9): 98-108.
蒋云昊, 赵治华. 参考信号耦合有用信号对干扰对消系统的影响及其抑制[J]. 通信学报, 2015,36(9):98-108. DOI： 10.11959/j.issn.1000-436x.2015205.
Yun-hao JIANG, Zhi-hua ZHAO. Influence and its suppression of desired signal coupling to reference signal to interference cancellation system[J]. Journal on Communications, 2015, 36(9): 98-108. DOI： 10.11959/j.issn.1000-436x.2015205.
摘要
分析了参考信号耦合有用信号时，实际自适应干扰对消系统的时域特性。分析表明，参考信号含有用信号导致系统时变，改变系统的最佳权值，使系统的干扰对消效果下降，并对有用信号的接收产生影响。根据实际共平台通信系统的收发耦合特性，从时域角度分析得到系统干扰对消比和有用对消比的计算表达式，并得到干扰对消比和有用对消比随相对时延相位变化的规律。提出一种时延匹配方法，通过匹配参考信号提取点至正交功分器输出与接收天线至合成信号注入点间的时延，可以有效抑制参考信号耦合有用信号导致干扰对消效果下降的问题。仿真结果表明，所提出的时延匹配方法能消除有用信号对干扰对消比的影响，还能提高干扰对消效果。
Abstract
The time-domain characteristics of adaptive interference cancellation system with desired signal coupling to reference signal were analyzed.The analyses reveal the desired signal makes the system a time-variation system and the optimal weights were changed
which made the performance of cancellation system decreased and infulence the reception of the desired signal.According to the coupling characteristics of common platform communication system
the formulas of (ICR) interference cancellation ratio and (DCR) desired cancellation ratio were gained in time-domain.The law of ICR and DCR varying with relative delay phase was got.The method of delay time matching was brought forward.Through matching the delay time of the extraction point of the reference signal to the output of the orthogonal divider and the receiv-ing antenna to the injection point of the synthetic signal could suppress the decrease of ICR for the reference signal coupling desired signal.The simulation results reveal that the delay time matching can not only prevent the decrease of ICR for de-sired signal in reference signal but also improve the performance of cancellation system.
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references
WIDROW B , GLOVER J R , MCCOOL J M . Adaptive noise cancel-ling:principles and applications [J ] . Proceedings of the IEEE , 1975 , 63 ( 12 ): 1692 - 1716 .
GLOVER J R . Adaptive noise canceling applied to sinusoidal inter-ferences [J ] . IEEE Transactions on Acoustics,Speech,and Signal Processing , 1977 , 25 ( 6 ): 484 - 491 .
TOBIAS O J , SEARA R . On the LMS algorithm with constant and variable leakage factor in a nonlinear environment [J ] . IEEE Transac-tions on Signal Processing , 2006 , 54 ( 9 ): 3448 - 3458 .
AKHTAR M T , ABE M , KAWAMATA M . A new variable step size LMS algorithm-based method for improved online secondary pathmodeling in active noise control systems [J ] . IEEE Transactions on Audio,Speech,and Language processing , 2006 , 14 ( 2 ): 720 - 726 .
DAS D P , PANDA G , KUO S M . New block filtered-X LMS algo-rithms for active noise control systems [J ] . IET Signal Processing , 2007 , 1 ( 2 ): 73 - 81 .
MUHAMMAD T A , MASAHIDE A , MASAYUKI K . A new variable step size LMS algorithm-based method for improved online secondary path modeling in active noise control systems [J ] . IEEE Transactions on Acoustics,Speech,and Signal Processing , 2007 , 14 ( 2 ): 720 - 726 .
杜武林 . 干扰抵消技术的原理和应用 . 电信科学 , 1988 ( 5 ): 51 - 55 .
DU W L . Principle and application of interference cancellation tech-nology [J ] . Telecom Science , 1988 ( 5 ): 51 - 55 .
郑伟强 ， 杜武林 . 自适应干扰抵消研究 [J ] . 电讯技术 , 1991 , 31 ( 6 ): 20 - 27 .
ZHENG W Q , DU W L . Study of adaptive interference canceling [J ] . Telecommunication Engineeting , 1991 , 31 ( 6 ): 20 - 27 .
马义广 ， 杜武林 . 自适应干扰抵消系统的性能分析与设计 [J ] . 西安电子科技大学学报， , 1992 , 19 ( 1 ): 84 - 92 .
MA Y G , DU W L . Performance analysis and design of adaptive interfer-ence canceling system [J ] . Journal of Xi'dian University , 1992 , 19 ( 1 ): 84 - 92 .
GERMAN F , ANNAMALAI K , YOUNG M , et al . Simulation and data management for cosite interference prediction [A ] . Electromag-netic Compatibility (EMC),IEEE International Symposium on [C ] . 2010 . 869 - 874 .
JIANG Y H , MA W M , ZHAO Z H . Influence of non quadrature of phase shifter to adaptive interference cancellation system [A ] . Proceed-ings of the International Conference on Intelligent Human-Machine Sys-tems and Cybernetics [C ] . Piscataway,USA , 2009 . 359 - 363 .
蒋云昊 ， 马伟明 ， 赵治华 . 斩波稳零下自适应干扰对消系统的性能分析 [J ] . 通信学报 ， 2010 , 31 ( 3 ): 65 - 74 .
JIANG Y H , MA W M , ZHAO Z H . Analysis of chopping stabilizing zero for adaptive interference cancellation system [J ] . Journal on Communications , 2010 , 31 ( 3 ): 65 - 74 .
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