海军航空工程学院学报2017，Vol.32Issue(6)：501-505,5.DOI:10.7682/j.issn.1673-1522.2017.06.001
航空磁探中水下目标三维积分方程磁场建模
Magnetic Field Modeling of Underwater Target Using 3D Integral Equation for Aeromagnetic Anomaly Detection
摘要
Abstract
To obtain the spatial distribution of the magnetic field of underwater ferromagnetic target in the aeromagnetic anomaly detection, the analytical equation of spatial magnetic field of the underwater ferromagnetic target was derived based on the fundamentals of the three dimensional integral equations method.The analytical equation of spatial magnetic field was simplified by the vector identity and the Gaussian divergence theorem,and the prediction model of the magnetic field of the underwater ferromagnetic target was established. The theoretical validation of the prediction model was per?formed using the ferromagnetic cuboid.The magnetic field of the ferromagnetic ellipsoid at high altitude was measured by the cesium vapour optically pumped magnetometer.Then the magnetic field of the ferromagnetic ellipsoid was calculated by the proposed prediction model.The prediction values and the measurement values were compared.The results showed that the prediction accuracy of the prediction model was good enough. The mean absolute error was 0.3205nT, and the mean relative error was 12.368%.关键词
航空磁探/水下目标/磁场预测模型/三维积分方程法Key words
aeromagnetic anomaly detection/underwater target/prediction model of magnetic field/3D integral equations method分类
数理科学引用本文复制引用
单志超,周家新,刘贤忠,杨磊,赵海英..航空磁探中水下目标三维积分方程磁场建模[J].海军航空工程学院学报,2017,32(6):501-505,5.基金项目
国家自然科学基金资助项目(61271444) （61271444）
山东省重点研发计划资助项目(2016CYJS02A01) （2016CYJS02A01）
