| 刘灵鸽,张启涛,万继响.超大型地面天线辐射特性实地测量技术[J].电子测量与仪器学报,2023,37(9):68-74 |
| 超大型地面天线辐射特性实地测量技术 |
| Onsite measurement technology for radiation characteristics ofultra large ground antennas |
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| DOI： |
| 中文关键词: 超大型天线 平面近场 无人机 实地测量 |
| 英文关键词:ultra large ground antennas planar near-field UAV testing technology |
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| 摘要点击次数: 580 |
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| 中文摘要: |
| 针对口径超过 10 m 的超大型地面天线由于极高成本难以进行精确测量的难题,提出了基于无人机的平面近场实地测
量方法。 首先对无人机散射、定位精度及测量场区选择等影响天线实地测量结果的主要因素进行了仿真分析,确定了测量区
域。 采用多旋翼无人机和高精度飞控技术,在高性能无人机最好 20 mm 飞控精度、5 mm 测量精度的条件下,进行了天线实地测
量系统的射频链路设计,并给出了两种近远场数据变换方法,可以有效解决在较高频段无人机定位精度差导致测量结果不可信
的问题。 采用实例分析验证了方法的有效性,为超大型地面天线低成本精确测量提供了较好的解决途径。 |
| 英文摘要: |
| A planar near field measurement method based on unmanned aerial vehicles (UAVs) is proposed to address the difficulty of
precise measurement of ultra large ground antennas with apertures exceeding 10 meters due to their extremely high cost. Firstly,
simulation analysis was conducted on the main factors that affect the antenna field measurement results, such as drone scattering,
positioning accuracy, and measurement field selection. The measurement area was determined to use multi rotation drones and highprecision flight control technology. Under the condition of high-performance drones with the best 20 mm flight control accuracy and 5 mm
measurement accuracy, the RF link design of the antenna field measurement system was carried out, and two near to far field data
transformation methods were provided, they can effectively solve the problem of unreliable measurement results caused by poor
positioning accuracy of drones in higher frequency bands. The effectiveness of the method was verified through case analysis, providing a
good solution for low-cost and accurate measurement of ultra large ground antennas. |
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