| 基于Polycycle信号的UWB正交脉冲序列设计 |
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| 引用本文： | 马英杰,周正,蒋华,石磊,唐亮. 基于Polycycle信号的UWB正交脉冲序列设计[J]. 系统工程理论与实践, 2012, 32(11): 2564-2569. DOI: 10.12011/1000-6788(2012)11-2564 |
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| 作者姓名： | 马英杰 周正 蒋华 石磊 唐亮 |
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| 作者单位： | 1. 北京邮电大学 泛网无线通信教育部重点实验室,北京 100876;2. 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(60772021);国家高技术研究发展计划(863计划)(2009AA01Z262);国家科技重大专项(2009ZX03006-006/-009);韩国知识经济部IITA指导下的ITRC项目(HTA-2009-C1090-0902-0019);北京电子科技学院基本科研业务费资助项目(BESTI-JBKY-201106) |
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| 摘 要： | 正交脉冲的产生是超宽带无线应用中的关键技术, 采用Hermite 矩阵特征向量分解方法, 提出了一种基于Polycycle信号的UWB 正交脉冲序列设计方法. 该方法产生的正交成形脉冲功率谱密度分布符合FCC关于室内和室外UWB应用的辐射限制, 有较高的频谱利用率, 脉冲函数自相关性强, 互相关性弱, 利于多址检测. 最后, 分析了2PPM-THMA UWB系统的传输性能, 仿真结果表明正交成形脉冲抗多用户干扰能力优于Scholtz脉冲.
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| 关 键 词： | 超宽带脉冲无线电 Hermite矩阵 Polycycle脉冲 功率谱密度 多用户干扰 |
| 收稿时间： | 2010-07-23 |
UWB orthogonal pulses design based on polycycle signal |
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| MA Ying-jie , ZHOU Zheng , JIANG Hua , SHI Lei , TANG Liang. UWB orthogonal pulses design based on polycycle signal[J]. Systems Engineering —Theory & Practice, 2012, 32(11): 2564-2569. DOI: 10.12011/1000-6788(2012)11-2564 |
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| Authors: | MA Ying-jie ZHOU Zheng JIANG Hua SHI Lei TANG Liang |
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| Affiliation: | 1. Key Lab of Universal Wireless Communications, MOE Wireless Network Lab, Beijing University of Posts and Telecommunications, Beijing 100876, China;2. Beijing Electronic Science and Technology Institute, Beijing 100070, China |
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| Abstract: | The generation of orthogonal pulses is a crucial technology in UWB wireless application. A novel design algorithm to generate orthogonal UWB shaped pulses is proposed based on the eigenvector of Hermite matrix and polycycle signal. The power spectral density (PSD) of the proposed orthogonal UWB pulses meets the FCC UWB indoor and outdoor spectral mask, furthermore, it has many characteristics in favor of multi-access detection, such as high spectral occupation rate, high auto-correlation and very weak cross-correlation. Finally, through the analyses and simulation of suppressing multi-user interference (MUI) in 2PPM-THMA UWB systems, the proposed orthogonal UWB pulses could be proved to have more predominant anti-interference performance than Scholtz pulse. |
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| Keywords: | ultra-wideband impulse radio (UWB-IR) Hermite matrix polycycle pulse power spectral density (PSD) multi-user interference (MUI) |
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