潜艇磁矩对反潜直升机磁探宽度的影响

The Effect of the Submarine Magnetic Moment on Helicopter Magnetic Anomaly Detection Width

通过潜艇磁场的偶极子模型和直升机磁异探测模型建立了潜艇的磁异场模型,然后依据文中所提出的磁异强度指标曲线确定了直升机的磁异探测宽度,在此基础上对潜艇磁矩与反潜直升机磁探宽度的关系进行了仿真分析。大量仿真结果表明,潜艇磁矩对磁探仪探测宽度的影响较大,随着潜艇磁矩的减小磁探仪的探测宽度快速减小,当潜艇磁矩减小为原来的0.3倍时,探测宽度减小一半。同时反潜机航向对磁异探测宽度随潜艇磁矩变化关系的影响在东西航向上达到最大。另外,在对潜艇磁矩对磁探仪探测宽度的影响近似估计时,可采用偶极子磁场的最小探测宽度模型进行计算。

Based on the dipole model of submarine magnetic field and the magnetic anomaly detection model of helicopter, the model of submarine magnetic anomaly field is established. And then, the magnetic anomaly detection width of helicopter is estimated through the magnetic anomaly intensity index curve which is proposed firstly in this paper. Last, based on these, the relationship of the magnetic anomaly detection width of helicopter and the submarine moment is analyzed through simulation experiment. The experimental results show that the submarine magnetic moment affects the magnetic anom,aly detection width of helicopter, and especially with the submarine magnetic moment reducing, the magnetic anomaly detection width decreases ~＇apidly. The changes of the magnetic moment by a factor of 0.3 result in one half decrease in detection width. Also, their relationship is affected by the heading of helicopter, especially at east and west heading. When estimating the effect of detection width from the submarine magnetic moment approximately, the minimum detection width model of magnetic dipole can be used.