基于无人机的下滑天线外场信号检测与分析

中国民航大学学报 ›› 2021, Vol. 39 ›› Issue (6): 7-13.

基于无人机的下滑天线外场信号检测与分析

瞿淳清

（中国民用航空华东地区空中交通管理局设备维修中心，上海 200335）

收稿日期:2021-02-05 修回日期:2021-02-05 接受日期:2020-10-13 出版日期:2021-12-01 发布日期:2022-06-05
作者简介:瞿淳清（1986—），男，上海人，高级工程师，硕士，研究方向为无线电导航。
基金资助:
华东管理局科技项目（KJ1807，KJ1706）

Analysis of field signal of glide path antenna based on drone

QU Chunqing

（East China Regional Air Traffic Management Bureau of Civil Aviation of China, Equipment-Maintenance Center, Shanghai 200335, China）

Received:2021-02-05 Revised:2021-02-05 Accepted:2020-10-13 Online:2021-12-01 Published:2022-06-05

摘要/Abstract

摘要： 从理想场地建模计算与实测平台共同评估下滑信号，以天线阵工作特性得出的空间信号辐射场型为参考依据设定实测区域，通过工业无人机搭载机载接收设备，实现外场辐射信号的动态检测。通过 WGS-84 坐标确立空间信号采样区域，对比分析理论模型与实测信号分布特征，并消除测试位置的高度误差。由 GPS 定位结合多旋翼无人机空中悬停特性，精确获取下滑道固定区段的调制度差零点高度，按照飞行校验中入口高度的算法，拟合得出入口高度。结果表明：无人机测试结果与实际飞行校验存在一定差异，且低于天线在理想情况得出的计算结果。

关键词: 无人机, 下滑信标, 外场信号检测, 入口高度

Abstract: Glide path(GP) signal assessment is made via a virtual site modelling and real site monitoring. The testing area is located through the space signal radiation pattern which is obtained according to the characteristics of antenna array. Signals are received in space dynamically by an industrial drone with airborne signal receiver. The space sampling location is sited by WGS -84 coordinate system. The mathematical model and testing result are compared, and the test error of height is offset. The height of the zero point of the difference in depth of modulation of the fixed section of the GP path is achieved precisely by hovering multi-rotor drone along with GPS positioning. The value of threshold crossing height(TCH) is fitted according to the algorithm. The result shows that TCH achieved by drone is not totally identical with the value reported by flight checking. Also, TCH tested by drone is slightly lower than the calculation result of ideal condition.

Key words: drone, glide path (GP) beacon, field signal measurement, threshold crossing height (TCH)

中图分类号:

瞿淳清. 基于无人机的下滑天线外场信号检测与分析[J]. 中国民航大学学报, 2021, 39(6): 7-13.

QU Chunqing. Analysis of field signal of glide path antenna based on drone [J]. Journal of Civil Aviation University of China, 2021, 39(6): 7-13.

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