中文摘要：

针对超宽带（UWB）对窄带无线通信系统的潜在干扰分析，使用基于物理层模型的方法分析了脉冲无线电（IR）和多带（MB）等不同技术体制的超宽带系统对塔康（TACAN）系统的影响。在充分考虑了系统的物理特性的情况下，利用Matlab的可视化仿真工具Simulink建立系统的物理层仿真模型，根据塔康系统误码率（BER）和接收机灵敏度的要求，得出了超宽带在塔康系统工作频段（962～1213MHz）的发射功率限制参考值。通过与基于干噪比（I／／N）的链路预算干扰分析方法的比较分析，本文的方法更能反映实际系统的影响状况，因此这个结果能够为规划超宽带在塔康系统工作频段的频谱提供参考。

英文摘要：

For researching into the potential interference caused by uhra-wideband （UWB） with narrowband communication systems, an analysis method based on the physical layer model was presented, and furthermore, the effect of the impulseradio ultra-wideband （IR-UWB） and the multi-band ultra-wideband （MB-UWB） on a tactical air navigation （TACAN） system was analyzed. The physical layer models of the TACAN system and the above two UWB systems were set up based on the full consideration of the physical characteristics of each system, and simulated using the Simulink of the Matlab. Based on the requirements of bit error rate （BER） and the sensitivity of the receiver for TACAN, the reference value of the UWB emission limit was obtained on the operating band （962 - 1213MHz） of TACAN. Compared with the link budget interference method based on an interference to noise ratio （I/N） criteria, this method reflects the effect of the actual system, so the conclusion can provide the reference to constituting the frequency spectrum of UWB on the operating band of TACAN.