Study on Control Technology of Frequency Common Problem of Ultra Wideband(UWB) Communications Systems

超宽带（UWB）通信系统是近年来研究的热点。UWB-IR被定义为使用持续时间小于1秒的脉冲序列的无线电通信方案。它的频谱分布非常广泛，宽度超过几GHz。现有的电波天象、医疗无线、GPS使用系统、航空系统等在使用跳频和OFDM等技术的无线通信系统的超宽带中受到干扰的可能性很高，而UWB系统则因此成为主要问题。针对这种情况，旨在阐明利用微波到达毫米波带的频段在局部区域内短距离传输超高速数据的超宽带无线系统的特点和特性，建立现有系统和频率共享的技术，使其成为可能，并有助于有效利用频率。本研究观察了微波带对UWB信号传播特性的干扰，以及毫米波带内共享频率的系统和接收到的干扰，并通过建模和分类进行了分类。此外，还介绍了超宽带系统抗干扰方法的设计和性能。UWB通信系统实现中物理层技术的问题安排与措施超宽带通信系统脉冲无线电信号产生系统的组成UWB通信系统对现有系统的干扰建模减少和消除超宽带通信系统干扰的方法设计和干扰环境的理论分析多路传播环境下脉冲信号间的抗干扰信号处理方式设计与分析综述了超宽带通信系统中干扰的降低和消除措施技术。少

UWB(Ultra Wideband) communications systems have become a popular research topic in recent times. UWB-IR is defined as a radio communication scheme using a train of pulses with duration of less than 1nsec. Its spectrum is ultra-widely spread over several GHz in width. The possibility that the interferences of existing electric wave heavenly phenomena, the medical treatment wireless, the GPS use system, and the aviation system, etc. used in Ultra-wideband of not the wireless communication system that uses the frequency hopping and the OFDM technology, etc. but the UWB system becomes a major issue is high for that. It aimed to clarify the feature and the characteristic of UWB wireless system that was able to transmit by the short distance in an area local the super-high speed data transmission by the use of the frequency band that arrived from the micro wave at the millimeterwave belt considering such a situation, to establish the technology that an existing system and the frequency shari … More ng become possible, and to contribute to effective use for the frequency. In this research, the interference given from the micro wave belt to the propagation characteristic of the UWB signal and the system in the millimeterwave belt that shared the frequency and the interference received from this system were observed, and classified by modeling and the class. In addition, the design and the performance of the method that the UWB system does the interference cancellation.Concretely,1.Problem arrangement and measures of physical layer technology for UWB communication system achievement2.Composition of system of generation of impulse radio signal of UWB communication system3.Modeling of existing system to which UWB communication system gives interference4.Theoretical analysis on method design and interference environment that reduces and removes interference that UWB communication system gives5.Design and analysis of the interference decrease signal mode of processing between pulse signs under multi-pass propagation environment6.The reduction and the removal measures technology of the interference that UWB communication system gave were summarized. Less