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.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
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)
关键词
UWB
PSWF
双正交性
陷波
窄带干扰
UWB
PSWF
double orthogonality
notch
narrowband interference
