北京邮电大学学报

  • EI核心期刊

北京邮电大学学报

• 研究报告 • 上一篇    

一种基于PSWFs的UWB自适应脉冲设计(增刊)

陈国东

  

  1. 北京邮电大学继续教育学院(即北京邮电大学通信网络综合技术研究所;北京邮电大学培训中心)
  • 收稿日期:2006-10-13 修回日期:2006-11-27 出版日期:2007-06-30 发布日期:2007-06-30
  • 通讯作者: 贾嘉

Adaptive pulse design based on PSWFs for UWB

  • Received:2006-10-13 Revised:2006-11-27 Online:2007-06-30 Published:2007-06-30

摘要: 从自适应频谱环境变化和兼容FCC频谱模板的角度出发, 建立了基于频谱感知来动态构建UWB系统自适应辐射掩模的机制。然后,利用PSWFs函数的特性,提出了一种基于多频带的PSWFs函数基的加权线性组合来设计UWB自适应脉冲波形的算法。仿真结果表明,该算法所产生的脉冲波形不仅能满足FCC频谱掩模的要求,而且能自适应掩模的动态变化。

关键词: 超宽带系统, 自适应频谱掩模, 自适应脉冲, 回转椭球波函数

Abstract: This paper gave a scheme of dynamically obtaining adaptive emission mask based on spectrum sensing to adapt to spectrum environment and be compatible with FCC spectral mask. Then, a method to generate adaptive UWB shaping pulse was proposed based on weight combination of prolate spheroidal wave functions(PSWFs) matching UWB multiple sub-band spectral mask. The simulation results show that the pulse waveforms shaped by this method conform the spectral mask constraint for UWB, and adapt to dynamical variety of the spectral mask .

Key words: ultra wideband system, adaptive spectral mask, adaptive pulse, prolate spheroidal wave functions