论文标题
SDR的信号恢复和通道估算的通道估计
Signal Restoration and Channel Estimation for Channel Sounding with SDRs
论文作者
论文摘要
在本文中，考虑使用软件定义的无线电（SDR）的频道声音的任务。与经典的频道探测设备相反，SDR是通用设备，需要在执行此任务时实现其他步骤。最重要的是，SDR可能会表现出怪癖，从而导致信号伪像，从而阻碍有效收集通道估计数据。基于这些考虑，在这项工作中，设计了一种实用算法来补偿混凝土设置中遇到的SDR进行频道声音的缺点。所提出的方法利用时间序列和傅立叶分析中的概念，包括一个信号恢复程序，用于减轻记录信号中的人工制品和一个包含通道的声音过程。对给定设置中产生的实际测量值评估了算法的功效。经验结果表明，所提出的方法能够抵消设备的缺点并提供合理的渠道估计。
In this paper, the task of channel sounding using software defined radios (SDRs) is considered. In contrast to classical channel sounding equipment, SDRs are general purpose devices and require additional steps to be implemented when employed for this task. On top of this, SDRs may exhibit quirks causing signal artefacts that obstruct the effective collection of channel estimation data. Based on these considerations, in this work, a practical algorithm is devised to compensate for the drawbacks of using SDRs for channel sounding encountered in a concrete setup. The proposed approach utilises concepts from time series and Fourier analysis and comprises a signal restoration routine for mitigating artefacts within the recorded signals and an encompassing channel sounding process. The efficacy of the algorithm is evaluated on real measurements generated within the given setup. The empirical results show that the proposed method is able to counteract the shortcomings of the equipment and deliver reasonable channel estimates.
