UWB通信系统双正交PSWF脉冲波形设计  

Doubly orthogonal PSWF pulse waveform design in UWB communication system

作　　者：徐玉滨[1] 王芳[1] 沙学军[1] 

机构地区：[1]哈尔滨工业大学通信技术研究所,哈尔滨150001

出　　处：《哈尔滨工业大学学报》2007年第1期81-84,共4页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金资助项目(60432040)

摘　　要：分析UW B脉冲波形设计原则,对基于长球面波函数(PSW F)的双正交脉冲进行研究.给出获得PSW F脉冲的两种解法,及基于PSW F的陷波设计,并用MATLAB对时域波形和功率谱进行了仿真.结果表明,PSW F脉冲具有中心频率可调、带宽可控的优点,并具有双正交性,能实现任意频点不同深度的陷波,更好地抑制窄带干扰.双正交PSW F脉冲是符合UW B通信系统要求的一种性能较理想的脉冲.This paper first analyze the principles of UWB pulse waveforms design, then give thorough researches of the doubly orthogonal pulse based on Prolate Spheroidal wave functions. Two algorithms to obtain PSWF pulses and notch design based on PSWF are presented. The waveforms and spectrums are simulated via MATLAB. The simulation results show that PSWF pulses have the advantages of adaptively changeable center frequency, easily controlled band, and double orthogonality. Variable notch depth at random frequency can be achieved, hence narrowband interferences can be suppressed dramatically. Doubly orthogonal PSWF pulse is an ideal pulse according with the requirements of UWB communication system.

关 键 词：UWB PSWF 双正交性 陷波 窄带干扰 

分 类 号：TN914.3[电子电信—通信与信息系统]