摘要
在磁偶极子模型条件下,提出了一种利用磁矩信息替换磁场强度值的磁异常探测改进算法,设计了一种磁传感器阵列结构。利用磁梯度张量概念和磁矩信息降低测量过程中地磁场的影响,分析磁性目标磁矩方向、测量系统结构、高斯白噪声对该算法定位结果的影响,仿真结果表明该算法具有较高的定位精度,克服了目前利用磁梯度张量系统进行单点定位过程中测量系统姿态对定位结果的不良影响。
An improved magnetic anomaly detection algorithm using magnetic moment information to replace the magnetic field strength value was proposed under the condition of magnetic dipole model. A magnetic sensor array structure was designed in a targeted manner. The magnetic gradient tensor concept and magnetic moment information were used to reduce the influence of the geomagnetic field during the measurement process. The influence of magnetic target magnetic moment direction,measurement system structure and Gaussian white noise on the positioning result of the algorithm was analyzed. The simulation results show that the algorithm has higher positioning accuracy and effectively overcomes the current single point positioning process using magnetic gradient tensor system and the bad influence of the attitude of the measurement system on the positioning result.
引文
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