| 一种基于正交脉冲调制的IR-UWB同步算法 |
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| 引用本文： | 覃银环,杨莘元,李海燕. 一种基于正交脉冲调制的IR-UWB同步算法[J]. 应用科技, 2010, 37(3): 5-8. DOI: 10.3969/j.issn.1009-671X.2010.03.002 |
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| 作者姓名： | 覃银环 杨莘元 李海燕 |
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| 作者单位： | 哈尔滨工程大学信息与通信工程学院,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家蕈础研究基金资助项目 |
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| 摘 要： | 超宽带信号的快速同步捕获是UWB系统实现的一个重大挑战.提出了一种基于修正Hermite多项式脉冲的同步捕获方法,脉冲信号选用零阶和一阶修正Hermite多项式,2种脉冲信号按特殊顺序作为超宽带脉冲信号,同时与滑动相关结合.该算法不需要在本地生成模板,只需进行接收信号与其自身延迟之间的相关运算.其中低阶的修正Hermite多项式的正交性使算法得到更精确的同步参数.理论分析及仿真实验结果表明,该算法实现了预期的性能优化.
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| 关 键 词： | 超宽带 同步捕获 噪声模板 修正Hermite多项式 |
A timing acquisition algorithm of IR-UWB based on orthogonal pulse modulation |
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| QIN Yin-huan,YANG Shen-yuan,LI Hai-yan. A timing acquisition algorithm of IR-UWB based on orthogonal pulse modulation[J]. Applied Science and Technology, 2010, 37(3): 5-8. DOI: 10.3969/j.issn.1009-671X.2010.03.002 |
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| Authors: | QIN Yin-huan YANG Shen-yuan LI Hai-yan |
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| Affiliation: | QIN Yin-huan,YANG Shen-yuan,LI Hai-yan (College of Information , Communication Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | Timing acquisition is one of the major challenges in ultra-wideband(UWB) communications. A timing acquisition algorithm is proposed for pulse amplitude modulation based on the modified Hermite polynomial (MHP), combining the slipping correlation. The zero order MHP and one order MHP are used as the pulse shaper with special sequence. The proposed algorithms only correlate with the operation between the received signals and the delayed signals themselves, not needing to build a template locally. The orthogon... |
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| Keywords: | UWB timing acquisition noise template modified Hermite polynomials |
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