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文章首次将欧拉反演方法应用于航天器内部多磁偶极子的分辨,通过测量航天器外围磁场及其梯度张量数据,采用欧拉反演算法来计算航天器内部主要磁性部组件的位置和磁矩参数。根据磁场梯度张量数据的测量特点,采取了网格式数据采集方式;然后推导了多点联合反演的欧拉方程组,并提出了一种在所有反演解中快速准确寻找最优解的方法;在此基础上利用遗传算法对反演最优解进行了优化。优化后的分辨结果表明:在小范围、多层次磁源分辨方面,计算出的磁源磁矩参数较为准确,且磁源位置最高分辨率优于0.01m。
In this paper, the Euler inversion method is first applied to the resolution of multi-magnetic dipoles in the spacecraft. The outer magnetic field and its gradient tensor data of the spacecraft are measured and the Euler inversion algorithm is used to calculate the main magnetic components of the spacecraft Position and magnetic moment parameters. According to the measurement characteristics of the magnetic field gradient tensor data, a grid-type data acquisition method is adopted. Then the Euler equations of multi-point joint inversion are deduced and a new method of finding the optimal solution quickly and accurately in all inversion solutions Based on this, genetic algorithm is used to optimize the optimal solution. The optimized resolution results show that the calculated magnetic source magnetic moment parameters are more accurate and the highest resolution of the magnetic source position is better than 0.01m in the small range and multi-level magnetic source resolution.