摘要
超宽带(UWB)信号及其功率谱分布是研究超宽带通信系统与其它通信系统频谱共存与兼容问题时,需要考虑的重要因素。该文利用UWB信号的数学模型,在MATLAB环境下建立了产生UWB信号的发生器,并将其与S imu link仿真相结合,实现了对UWB信号功率谱密度的实时观测与控制。这为分析研究UWB信号功率谱分布提供了有效便捷的平台。文中还应用该仿真模型对具有不同参数的UWB信号功率谱进行了仿真,验证仿真模型的可行性。
UWB signals and their power spectrum mask are important factors which need to be considered when studying the spectrum coexisting and compatible problems between UWB systems and other radio systems. In this paper, the UWB signal generator is established based on the math expression of UWB signals by MATLAB, and is combined with the Simulink block to perform the real time simulation to the power spectral density of UWB signals. An efficient and convenient interface is provided for analyzing and studying the power spectral density of UWB signals. Then the power spectral densities of UWB signals with difference parameters are simulated by the simulation model, and the feasibility of the model is validated.
出处
《计算机仿真》
CSCD
2006年第7期305-307,共3页
Computer Simulation
关键词
超宽带
仿真模型
功率谱密度
Ultra Wideband （UWB）
Simulation model
Power spectral density
