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电子学报  2012 

一种提高超宽带无线系统干扰容限的方法

DOI: 10.3969/j.issn.0372-2112.2012.10.006, PP. 1943-1947

Keywords: 超宽带,时分多路,干扰,自适应

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Abstract:

超宽带无线电系统常常因窄带干扰强度超出其干扰容限而无法正常工作,自适应陷波技术可大幅度提升其干扰容限.但在超宽带接收机中,实现高阶陷波非常困难,常规方法复杂度高、稳定性差、难于收敛.本文提出一种时分复用并行高阶自适应陷波方法,能同时快速跟踪并有效滤除一个或多个窄带强干扰,使系统干扰容限大幅度提升,且稳定性好、收敛快、对有用信号损伤小.理论分析与仿真结果验证了其优越性,且具有重要应用价值.

References

[1]  Yang L Q,Giannakis G B.Ultra-wideband communications an idea whose time has come [J].IEEE Signal Processing Magazine,2004,21(6):26-54.
[2]  Chen Y F,Norman C B.Interference analysis of UWB systems for IEEE channel models using first and second -order moments [J].IEEE Transactions on Wireless Communications,2009,57(3):622-625.
[3]  Hu C C,Chang J F.DS-UWB downlink subband adaptive chip-equalization using reduced-rank multistage wiener filtering technique [J].IEEE Transactions on Signal Processing,2011,59(4):1883-1889.
[4]  Giorgetti A,Chiani M,Win M Z.The effect of narrowband interference on wideband wireless communication systems [J].IEEE Transactions on Communications,2005,53(12):2139-2149.
[5]  Yue W,Dong X D,Ivan J F.Spectrum shaping and NBI suppression in UWB communications [J].IEEE Transactions on Wireless Communications,2007,6(5):1944-1952.
[6]  Carvalho P,Dinis R.UWB digital carrier user codes for narrow band interference cancelation [A].Proceedings of the 3rd International Conference on Signal Processing and Communication Systems [C].USA:IEEE Press,2009.1-5.
[7]  Wang J Z,Wong T.Narrowband interference suppression in time-hopping impulse radio UWB communications [J].IEEE Transactions on Wireless Communications,2007,54(6):1057-1067.
[8]  Simon Haykin.Adaptive Filter Theory [M].Fourth Edition,Prentice Hall,2002.120-180.
[9]  熊海良.超宽带无线通信与定位关键技术研究 [D].西安:西安电子科技大学博士论文,2011,02. Xiong H L.Research on key techniques of Ultra Wideband wireless communication and localization [D].Xi''an,Shaanxi:Xidian University,2011,02.(in Chinese)
[10]  Ahmadian Z,Shenouda M B,Lampe L.Design of pre-rake DS-UWB downlink with pre-equalization [J].IEEE Transactions on Communications,2012,60(2):400-410.

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