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

近年来，超宽带(UWB)通信系统已成为一个热门的研究课题。UWB-IR被定义为使用持续时间小于1nsec的脉冲序列的无线电通信方案。它的频谱超广泛地分布在几个GHz的宽度上。现有的电波天象、医疗无线、GPS使用系统、航空系统等在超宽带中使用的可能性很高，而超宽带系统却不是使用跳频和OFDM技术的无线通信系统。针对这种情况，阐述了在毫米波频段利用微波到达的频段在局部区域短距离传输超高速数据的超宽带无线系统的特点和特点，建立了现有系统和频率共享…的技术更多的NG成为可能，并有助于该频率的有效利用。在本研究中，观测了微波带对UWB信号传播特性的干扰和毫米波带内共频系统以及从该系统接收到的干扰，并对其进行了建模和分类。具体而言，1.超宽带通信系统实现物理层技术的问题安排和措施2.超宽带通信系统冲激无线电信号产生系统的组成3.超宽带通信系统对现有系统的干扰建模4.对超宽带通信系统产生干扰的方法设计和干扰环境进行理论分析5.多径传播环境下脉冲信号间处理的干扰减小信号方式的设计和分析6.总结了超宽带通信系统对干扰的减小和消除措施技术。较少

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