| 基于Hermite多项式的超宽带脉冲波形研究 |
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| 引用本文： | 游路路,邹传云,耿鹏. 基于Hermite多项式的超宽带脉冲波形研究[J]. 电视技术, 2006, 0(7): 57-59 |
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| 作者姓名： | 游路路 邹传云 耿鹏 |
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| 作者单位： | 桂林电子科技大学,通信与信息工程系,广西,桂林,541004;桂林电子科技大学,通信与信息工程系,广西,桂林,541004;桂林电子科技大学,通信与信息工程系,广西,桂林,541004 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 基于Hermite多项式理论,给出了一种适合超宽带通信的窄脉冲函数,即修正的Hermite多项式.分析了脉冲形成因子和Hermite多项式的阶数对其脉冲波形及能量谱密度的影响.研究了跳时扩频脉冲位置调制的超宽带系统在加性高斯白噪声信道下使用该脉冲的系统性能.仿真结果表明,该系统中三阶修正Hermite多项式的性能要比其它阶好.
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| 关 键 词： | Hermite多项式 超宽带 脉冲波形 |
| 文章编号： | 1002-8692(2006)07-0057-03 |
| 收稿时间： | 2006-05-09 |
| 修稿时间： | 2006-05-09 |
The Research of UWB Pulse Shapes Based on Hermite Polynomials |
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| YOU Lu-lu,ZOU Chuan-yun,GENG Peng. The Research of UWB Pulse Shapes Based on Hermite Polynomials[J]. Ideo Engineering, 2006, 0(7): 57-59 |
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| Authors: | YOU Lu-lu ZOU Chuan-yun GENG Peng |
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| Abstract: | Based on the theory of Hermite polynomial, this paper presents a kind of narrow pulse function which is suitable for ultra wideband (UWB) communications, namely Modified Hermite Polynomial (MHP). The effects of time-shaping factor and the orders of MHP to the pulse shape and the energy spectrum density are analyzed. The performance of time-hopping pulse position modulation (TH-PPM) UWB system using MHP is studied under additive white Gaussian noise(AWGN)channel. The simulation results show that the performance of the UWB system using the third order of MHP is better than that using other orders. |
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| Keywords: | Hermite polynomials UWB pulse shape |
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