摘要
航磁补偿就是要去除飞行平台引入的干扰磁场.本文按照磁补偿工作的一般流程介绍了固定翼无人机航磁测量系统的构成、平台干扰源、干扰场建模、补偿飞行方案.在将有人机的磁补偿工作扩展应用到固定翼无人机的过程中,由于固定翼无人机很难进行常规的补偿飞行,没有获得相应数据.但考虑到无人机本身的磁干扰相对较小,而且移动方便,根据对实验区内航磁数据的分析掌握的信号特性,试探性地提出一种基于地面测量的静态补偿方案,初步建立针对低磁无人机平台获取的航磁总场数据补偿的方法,并对以后进一步实验的关键问题进行了讨论.
Since the UAV advantages in security and economy,compared to manned aircrafts,it has been applied experimentally in aerogeophysics.The fixed-wing UAV were employed in our aeromagnetic detection system to obtain the geophysical magnetic anomaly information.The purpose of magnetic compensation is to remove the interference introduced by the aircraft platform.Herein states the composition of the fixed-wing UAV aeromagnetic detection system,interference sources,interference field modeling and the compensation flight scheme.The magnetic compensation of manned aircrafts has been well eatablished,but it＇s hard for the fixed-wing UAV to make the routinely compensation flight like the manned aircraft,therefore we didn＇t get the corresponding data.The fuselage is made of glass steel,howerver,it could be assumed the eddy-current magnetic field generated by the UAV is negligible.In this way,aground-based method for compensation is tentatively proposed,based on the signal characteristics obtained from analysis of aeromagnetic data,aiming at the magnetic compensation processing of the aeromagnetic total field data acquired through low magnetic UAV platform.
出处
《地球物理学进展》
CSCD
北大核心
2015年第6期2931-2937,共7页
Progress in Geophysics
基金
国家深部探测技术与实验研究专项SinoProbe-09-03(201011080)资助
关键词
磁补偿
航磁测量系统
固定翼无人机
magnetic compensation
aeromagneic detection system
fixed-wing UAV
