固定翼无人机航磁探测系统的磁补偿模型分析

发布时间：2018-04-16 03:15

本文选题：磁补偿 + 固定翼无人机　；参考：《航空学报》2016年11期

【摘要】：近年来,无人机的应用日益广泛,逐渐用于航空物探。在使用固定翼无人机搭载磁力仪进行航磁测量时,必然引入飞行平台干扰,包括与机动无关的干扰和与机动有关的干扰。去除和飞机机动有关的磁干扰,即为磁补偿工作。航磁补偿的经典TOLLES-LAWSON模型将磁干扰分为剩余磁场、感应磁场和涡流磁场。对于固定翼无人机,涡流磁场可以不考虑,将剩余磁场和感应磁场合称为稳态干扰场。主要对飞机干扰的来源和性质进行分析,并在地面设计实验验证铁磁性材料的性质,以加深对磁补偿模型的假设和推导过程的理解。最后,在地面实验平台上测量了飞机磁干扰场的平面分布图,指导航空磁力仪的安装。在将TOLLES-LAWSON模型应用于固定翼无人机航磁探测系统的磁补偿工作时,无人机与有人机相比,在结构和材料方面都有较大差异,因此对模型的物理意义和假设条件的深入理解至关重要,此即本文所述工作成果的出发点。
[Abstract]:In recent years, unmanned aerial vehicles (UAVs) have been widely used in aeronautical geophysical exploration.When using fixed wing UAV to carry on aeromagnetic measurement with magnetometer, the interference of flight platform, including maneuvering independent interference and maneuvering related interference, is inevitable.Removing the magnetic interference associated with aircraft maneuvering is called magnetic compensation.The classical TOLLES-LAWSON model of aeromagnetic compensation classifies magnetic interference into residual magnetic field, inductive magnetic field and eddy current magnetic field.For a fixed-wing UAV, the eddy current magnetic field can be ignored, and the residual magnetic field and the induction magnetic field are called steady disturbance field.The sources and properties of aircraft interference are analyzed, and the properties of ferromagnetic materials are verified by experiments designed on the ground in order to deepen the understanding of the assumption and derivation of the magnetic compensation model.Finally, the plane distribution of the aircraft magnetic interference field is measured on the ground experimental platform to guide the installation of the aero magnetometer.When the TOLLES-LAWSON model is applied to the magnetic compensation of the aeromagnetic detection system of the fixed-wing UAV, the structure and material of the UAV are different from those of the man-machine.Therefore, it is very important to understand the physical meaning and hypothetical conditions of the model, which is the starting point of the work in this paper.
【作者单位】：中国科学院遥感与数字地球研究所遥感科学国家重点实验室;
【分类号】：V248.1;;P631.2+22

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