舰船外部磁场特征推算及验证

Extrapolation and Verification of Magnetic Field Outside Ship

舰船外部磁场特征的精确推算是实现在目标深度上最佳磁异常补偿的关键技术。通过舰船内部布置的一定数量传感器,根据其测量值可推算舰船外部一定目标位置处磁场特征。作者给出了舰船外部磁场推算公式,并采取了基于神经网络的优化算法,给出了实施步骤,并通过实测结果进行了验证,推算相对误差可控制在5%以内,满足工程应用需求。

The calculation of ship external magnetic field characteristics is the key technology to realize the optimal magnetic anomaly compensation at a certain target depth.According to a certain number of sensors arranged inside the ship,magnetic field characteristics at a certain external target position are calculated by the measured value.In this paper,the calculation formula of external magnetic field is given,the optimization algorithm based on neural network is adopted,the implementation steps are given,and verified by the measured results.The relative error of calculation can be controlled within 5%,meet engineering application requirements.