时间演进非平稳莱斯衰落信道建模及产生方法

发布时间：2018-06-19 16:30

本文选题：非平稳衰落 + 信道模型　；参考：《应用科学学报》2017年01期

【摘要】：针对基站-移动台之间的动态传播场景,构建一个时间演进的非平稳莱斯衰落信道模型,提出了一种基于线性调频信号叠加的产生方法,并给出模型参数的计算及更新算法.实验表明,该方法不仅可以保证衰落信道状态的平滑切换及衰落信道幅值和相位的连续性,还能复现衰落信道的非平稳特性,从而保证信道模型输出的时变包络分布和时变多普勒功率谱与期望值一致.该方法可用于时变场景下移动通信系统的性能评估和验证.
[Abstract]:Aiming at the dynamic propagation scene between base station and mobile station, a time-evolution non-stationary Rice fading channel model is constructed. A method based on LFM signal superposition is proposed, and the calculation and updating algorithm of model parameters are given. Experiments show that the proposed method can not only guarantee smooth handover of fading channel state and continuity of amplitude and phase of fading channel, but also reproduce non-stationary characteristics of fading channel. Thus, the time-varying envelope distribution and time-varying Doppler power spectrum of the channel model output are consistent with the expected value. This method can be used to evaluate and verify the performance of mobile communication systems in time-varying scenarios.
【作者单位】：南京航空航天大学江苏省物联网与控制技术重点实验室;中国电子科技集团公司第41研究所;
【基金】：中央高校基本科研业务费青年科技创新基金(No.NS2015046,No.NS2016044) 国家自然科学基金(No.61571225) 江苏省普通高校研究生科研创新计划项目基金(No.SJZZ15_0040)资助
【分类号】：TN929.5

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