MIMO vector channel sounder measurement for smart antenna system evaluation
MIMO vector channel sounder measurement for smart antenna system evaluation
复制标题
用于智能天线系统评估的 MIMO 矢量通道探测仪测量
DOI：
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发表时间：
2001
影响因子：
3.6
通讯作者：
U. Trautwein
中科院分区：
文献类型：
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作者：
R. Thomä;D. Hampicke;A. Richter;G. Sommerkorn;U. Trautwein
对于移动无线电中智能天线传输原理的仿真和设计，需要精确了解各种无线电环境中的时变定向多径结构。本文描述了一种新型实时多输入多输出（MIMO）矢量无线电信道探测仪，它在发射机和接收机位置使用多个天线。所提出的MIMO测量原理可以有效地利用来同时估计无线链路两端的传播方向，从而显着提高多个路径参数的整体分辨率。应用适当的天线架构和多维酉 ESPRIT 算法，可以对传播波的出发方向 (DOD)、到达时间延迟 (TDOA)、多普勒频移和到达方向 (DOA) 进行联合超分辨率估计。测量结果还可直接用于多用户场景中组合发射接收分集（MIMO）传输原理和空时（ST）自适应接收机的仿真。参考了基于不同位置测量的结果，包括工业 WLAN 应用典型的复杂室内环境。
For the simulation and design of smart antenna transmission principles in mobile radio, precise knowledge of the time-variant directional multipath structure in various radio environments is required. In this paper, a new real-time multiple-input-multiple-output (MIMO) vector radio channel sounder is described, which uses multiple antennas at the transmitter as well as at the receiver position. The proposed MIMO measurement principle can be effectively exploited to estimate the propagation direction at both ends of the wireless link simultaneously, and thus, dramatically enhance overall resolution of the multiple path parameters. Applying a proper antenna architecture and the multidimensional unitary ESPRIT algorithm, joint superresolution estimation of the direction of departure (DOD), time- delay of arrival (TDOA), Doppler shift, and direction of arrival (DOA) of the propagating waves becomes possible. The measured results can also be used directly for the simulation of combined transmit-receive diversity (MIMO) transmission principles and space-time (ST) adaptive receivers in a multi-user scenario. Results based on measurements in different locations are referenced, including a complicated indoor environment as is typical for industrial WLAN applications.