Multistatic mm-Wave Imaging with Planar 2D-Arrays
Multistatic mm-Wave Imaging with Planar 2D-Arrays
复制标题
使用平面二维阵列进行多基地毫米波成像
DOI：
10.1109/gemic.2009.4815908
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
L. Schmidt
中科院分区：
文献类型：
--
作者：
S. Ahmed;A. Schiessl;L. Schmidt
这项工作报告了使用多基地配置的有源 2D 平面阵列和数字波束成形技术在 W 频段（75 至 110 GHz）扫描 2D 和 3D 物体的测量结果。物体反射率的图像质量主要取决于频段、阵列配置、信号偏振和聚焦方法。多基地测量可实现更高的动态范围、减少的天线数量以及交叉极化测量的可行性。测量结果满足理论预期，仿真结果分辨率低至 4 毫米。将介绍两个多基地阵列，并在图像分辨率、天线数量、信噪比和所需的数字处理方面进行比较。
This work reports measurement results for the scanning of 2D and 3D objects in W-band (75 to 110 GHz) using active 2D planar arrays in multistatic configuration with digital beamforming technique. The image quality of the object reflectivity depends mainly on the frequency band, array configuration, signal polarization, and focusing method. Multistatic measurements allow for higher dynamic range, reduced antennas count and the feasibility for cross-polarization measurements. Measurements meet the theoretical expectation and the simulation results down to 4 mm resolution. Two multistatic arrays will be presented and compared in terms of image resolution, antennas count, SNR and digital processing needed.