基于低增益近场测量的多直升机平面定位误差灵敏度分析

2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI:10.1109/ICEAA.2016.7731456

H. Pienaar, D. Davidson

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引用次数: 4

摘要

使用基于多架直升机的人工源进行近场扫描，可以帮助校准大型中频孔径阵列(MFAA)站的元素模式，计划用于平方公里阵列(SKA)项目的第二阶段。目前在多架直升机上使用的高端定位系统的精度在厘米量级。本研究探讨了宽视场(FoV)天线近场扫描中平面定位的不确定性所引起的误差程度。在平面定位精度为1 cm的情况下，450 MHz时远场误差上限为10%，1450 MHz时远场误差上限为30%。

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Error sensitivity analysis for multi-copter planar positioning on low-gain nearfield measurements

Near-field scanning using multi-copter based artificial sources could aid calibration of elemental patterns on large Mid Frequency Aperture Array (MFAA) stations, planned for phase 2 of the Square Kilometre Array (SKA) project. Current high-end positioning systems used on multi-copters have an accuracy in the order of centimetres. This study investigates the extent of errors caused by uncertainties in planar positioning during a near-field scan on wide field of view (FoV) antennas. It is found that at planar positioning accuracies of 1 cm, an upper bound far-field error of 10% at 450 MHz to 30 % at 1450 MHz can be expected.

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2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)

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