】描述了基于ITU-R M.1225的包括室内、室外到室内/步行和车载等测试环境的IMT-2000信道模拟器设计及仿真实现。重点分析了实现该信道模拟器慢衰落的相关性整形和频率选择性多径衰落的实时硬件实现两个算法，给出了数值计算和仿真结果，结果表明该信道模拟器较好地仿真出了2 GHz信道的一阶和二阶统计特性，可作为第三代移动通信研究和设备研制的有效工具。关 键 词 IMT-2000; 信道模拟器; 传播模型; 基带This paper describes models and algorithms for realizing the reference model proposed in ITU-R M.1225 for each test-operating environment including indoor office, outdoor-to-indoor/pedestrian and vehicular. Besides the brief des cription of the scheme as a whole, we discuss two algorithms in detail that are adapted to be realized in real time: shaping of slow fading with correlation and generation of frequency-selected multipath fading. The numerical results and simulation statistics given in the end show that the simulator gives good simulations of the first-order and second-order statistic characteristics.
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