摘要
简要阐述了多频带-正交频分复用(MB-OFDM)超宽带系统的基本原理及信号格式,具体分析了相应的发射机与接收机的基本组成与工作原理。在此基础上,利用SystemView仿真平台对发射机、接收机以及信道进行了仿真设计,并互连成一个MB-OFDM超宽带系统。最后,分别给出了功率谱密度、子频带切换以及发射端与接收端信号比较结果,通过对仿真结果的分析证明了整个系统的正确性与可靠性。
The basic principle and transmitted signal structure for the MB-OFDM-UWB system are discussed firstly; more details about the basic structure and operation principle of transmitter and receiver are given. Based on above analyses, the transmitter, receiver and signal channel are simulated separately, and then the three parts are assembled into a complete MB-OFDM-UWB system. At last, the power spectrum, frequency band switch and comparison of transmitted and received signal are shown. The analysis of the simulation result proves the correctness and reliability of the system.
出处
《时间频率学报》
CSCD
2007年第2期89-96,共8页
Journal of Time and Frequency
基金
863资助项目(2006AA12Z314)
西部之光人才培养计划资助项目(2005ZD02)
