| 基于PSWF的超宽带通信系统最佳波形设计 |
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| 引用本文： | 迟永钢,王芳. 基于PSWF的超宽带通信系统最佳波形设计[J]. 南京邮电大学学报(自然科学版), 2006, 26(2): 43-46 |
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| 作者姓名： | 迟永钢 王芳 |
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| 作者单位： | 哈尔滨工业大学,电子与信息技术研究院,黑龙江,哈尔滨,150001 |
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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： | 基于脉冲的超宽带通信系统主要以脉冲为信息载体。脉冲的特性影响了整个系统的性能、复杂度和频谱利用情况。以通信系统中波形设计要求为基础，设计了一种可以应用于超宽带通信系统中的正交波形——长球面波（PSWF）。此波形不仅具有正交完备性，同时还可以实现灵活的频谱控制。采用此波形可以设计出满足FCC定义的任意频段、任意带宽的超宽带通信系统波形，同时还可以实现在固定频带内具有灵活陷波特性的波形，从而在波形设计层面上为解决系统干扰和实现频谱兼容提供了一种可行的途径。
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| 关 键 词： | 超宽带 最大似然 欧几里德距离 |
| 文章编号： | 1673-5439（2006）02-0043-04 |
| 收稿时间： | 2005-11-10 |
| 修稿时间： | 2005-11-10 |
Optimum Signal Design for Ultra Wideband Communications System Based on PSWF |
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| CHI Yong-gang,WANG Fang. Optimum Signal Design for Ultra Wideband Communications System Based on PSWF[J]. JJournal of Nanjing University of Posts and Telecommunications, 2006, 26(2): 43-46 |
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| Authors: | CHI Yong-gang WANG Fang |
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| Affiliation: | School of Electronic and Information Technology, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Ultra wideband communication system based on impulse(IR-UWB) carries information via pulse trains.The performance,complexity and spectrum utilizing efficiency of such system are determined by the characteristics of pulse.According to the criterion of signal design in communication system, an optimum orthogonal pulse which named PSWF is designed for IR-UWB communication system.The orthogonal pulse is not only completed but also flexible in spectrum control.With the pulse,an IR-UWB system located at any central frequency with any bandwidth which meets the FCC's definition can be designed.Another IR-UWB system with a controllable notch frequency can be also designed with it.This method offers a practicable solution to narrow interference suppression and spectrum coexistence. |
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| Keywords: | PSWF |
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