| 认知UWB正交脉冲序列设计及性能分析 |
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| 引用本文： | 马英杰,周正,何文才,张静,姚海鹏.认知UWB正交脉冲序列设计及性能分析[J].北京理工大学学报,2011,31(5):583-588. |
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| 作者姓名： | 马英杰 周正 何文才 张静 姚海鹏 |
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| 作者单位： | 马英杰,MA Ying-jie(北京邮电大学,信息与通信工程学院,北京,100876;北京电子科技学院,北京,100070);周正,张静,姚海鹏,ZHOU Zheng,ZHANG Jing,YAO Hai-peng(北京邮电大学,信息与通信工程学院,北京,100876);何文才,HE Wen-cai(北京电子科技学院,北京,100070) |
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| 基金项目： | 国家自然科学基金资助项目，国家"八六三"计划项目，国家科技重大专项资助项目 |
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| 摘 要： | 为了解决超宽带与窄带系统共存问题,基于认知无线电的思想,采用Hermite矩阵特征向量方法和Ray-leigh信号提出了一种认知超宽带(UWB)正交脉冲序列设计方法,从而达到抑制窄带干扰的目的.分析了基于认知UWB脉冲序列的2PPM-TH和2PAM-TH UWB系统的抗多用户干扰以及窄带干扰性能.仿真结果表明,提出的自适应脉冲序列的功率谱密度分布符合FCC关于室内和室外UWB应用的频谱规范,可以实现任意频段陷波,具有灵活的认知避免能力;认知UWB脉冲序列具有较强的窄带干扰抑制能力.
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| 关 键 词： | 超宽带 认知无线电 Hermite矩阵 Rayleigh信号 陷波 干扰抑制 |
| 收稿时间： | 2010/8/28 0:00:00 |
Cognitive UWB Orthogonal Pulses Design and Its Performance Analysis |
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| MA Ying-jie,ZHOU Zheng,HE Wen-cai,ZHANG Jing and YAO Hai-peng.Cognitive UWB Orthogonal Pulses Design and Its Performance Analysis[J].Journal of Beijing Institute of Technology(Natural Science Edition),2011,31(5):583-588. |
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| Authors: | MA Ying-jie ZHOU Zheng HE Wen-cai ZHANG Jing and YAO Hai-peng |
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| Institution: | MA Ying-jie1,2,ZHOU Zheng1,HE Wen-cai2,ZHANG Jing1,YAO Hai-peng1(1.School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China,2.Beijing Electronic Science and Technology Institute,Beijing 100070,China) |
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| Abstract: | By the aid of cognitive radio technology,a novel cognitive ultra-wideband(UWB) orthogonal pulses designing method based on the eigenvector of Hermite matrix and Rayleigh signal is presented for narrow band interference suppression.Simulation results show that the power spectral density(PSD) distribution of proposed adaptive UWB pulses can meet the FCC UWB indoor and outdoor spectral norms and realize adaptive spectral notches.Finally,through the analysis and simulation of suppressing multi-user interference... |
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| Keywords: | ultra-wideband(UWB) cognitive radio Hermite matrix Rayleigh pulse spectral notch interference suppression |
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