中文摘要：

研究超宽带（ultra-wide band,UWB）信号对IEEE802.16-2004 WiMAX系统电磁干扰.采用基于物理层模型的方法,分析不同技术机制UWB系统对全球微波互联接入（world interoperability for micro-wave access,WiMAX）系统的影响.结合各系统物理特性,使用Simulink仿真工具建立系统物理层仿真模型.根据WiMAX系统的接收机灵敏度和误码率要求,得到两者共存时UWB的发射功率限制参考值.在此基础上,分析多个UWB设备同时存在对WiMAX系统的干扰.研究结果可供规划UWB频谱,解决UWB与WiMAX系统共存问题参考.

英文摘要：

A method based on physical layer modeling was presented. It was to study the interference of uhua-wideband （UWB） on IEEE802. 16-2004 WiMAX system. The effect of UWB systems with various techniques was analyzed. The physical specifications of both UWB and WiMAX systems were considered thoroughly, and the physical layer model of each system was simulated with Simulink in Matlab. The reference value of the UWB power spectral density limit was obtained with the requirements of bit error rate （BER） and the receiver sensitivity of WiMAX. Furthermore, the aggregate interference of multiple UWB devices on WiMAX system was analyzed. The conclusion may offer a reference to UWB spectrum regulation, and provide an effective solution for coexistence analysis between UWB and WiMAX system.