【摘要】 一种应用于复杂室内环境的超宽带信号信道仿真模型,用以分析和描述超宽带信号经室内透射、反射和绕射传播后的时域电场强度。在已有的由射线法结合反射、绕射系数的仿真模型基础上,增加了对墙壁透射的分析,比较了不同墙壁参数对透射系数的影响。结果表明,在弱损耗情况下,存在较强的透射信号,因而包含透射的仿真模型具有实际意义。更多还原

【Abstract】 In this paper, an ultra wide-band (UWB) channel model is developed to analyze and describe the time-domain electric field of an UWB signal propagating in a complex indoor environment. Based on the ray tracing, reflection and diffraction method, the refraction analysis is added. The refraction through a wall with different parameters is simulated. The results show that for low loss medium wall, the refracted signal has strong power and cannot be ignored.更多还原