Calibration of millimeter-wave channel sounders for super-resolution multipath component extraction
Calibration of millimeter-wave channel sounders for super-resolution multipath component extraction
复制标题
用于超分辨率多径分量提取的毫米波通道探测仪校准
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
K. Remley
中科院分区：
文献类型：
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作者：
P. Papazian;Jae;Jelena Senic;P. Jeavons;C. Gentile;N. Golmie;Ruoyu Sun;D. Novotny;K. Remley
毫米波通信系统将依靠高度定向的天线来补偿其工作频带中预期的更大的路径损耗。因此，电子波束形成将成为该技术的基石。为了有效地设计这些系统，准确估计环境的多径分量特征是必不可少的，特别是它们的三维到达角。超分辨率技术能够以高保真度提取这些成分，即使存在漫射散射。然而，应用这些技术需要对28,60和83 GHz通道测深仪进行精确校准。本文概述了实现这种精度的校准程序。具体来说，我们考虑了由内部系统反射和射频元件线性失真引起的脉冲响应失真。我们还描述了接收机阵列元件的相位中心和复杂天线模式，并测量了同步时钟的漂移。
Millimeter-wave communication systems will rely on highly directional antennas to compensate for the greater pathloss expected in their frequency bands of operation. Hence, electronic beamforming will form a cornerstone for the technology. For the effective design of these systems, accurate estimation of the multipath component characteristics of the environment is essential, in particular their three-dimensional angle-of-arrival. Super-resolution techniques enable extracting these components with high fidelity, even in the presence of diffuse scattering. Applying these techniques, however, requires precision calibration of our 28, 60, and 83 GHz channel sounders. This paper outlines calibration procedures implemented to deliver such precision. Specifically, we account for impulse-response distortion stemming from internal system reflections and linear distortion by RF components. We also characterize the phase centers and complex antenna patterns of the receiver array elements, and gauge the drift of our synchronization clocks.