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。
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.
出处
《南京邮电大学学报（自然科学版）》
EI
2006年第2期43-46,共4页
Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition
基金
国家自然科学基金重点项目(60432040)资助项目
