基于先验目标分布的磁探仪应召搜潜最佳圆周搜索半径研究

摘要

为提高反潜巡逻机利用磁探仪执行应召螺旋搜潜的搜潜效能,运用概率论和最优搜索理论对最佳圆周搜索半径进行研究.综合考虑目标初始位置、航速和航向等分布的特点,建立了磁探仪圆周搜潜概率的解析模型,据此推导出最佳圆周搜索半径.根据飞行线路模拟算法,结合反潜巡逻机的机动性能,建立了反潜巡逻机利用磁探仪执行螺旋搜潜时的航路规划的数学模型,根据数学模型利用蒙特卡洛对搜潜效能进行仿真分析.结果表明:在相同条件下,利用解析模型计算得到的搜潜概率与蒙特卡洛仿真得到的搜潜概率基本一致；与传统的螺旋搜索方法相比,改进后的搜索方法能使搜潜效能得到明显提高.%To improve the search submarine efficiency of on-call spiral search submarine by antisubmarine patrol aircraft with magnetic anomaly detector ( MAD), the optimal circle search radius is explored by using probability and optimal search theories. Considered the distribution characteristics of the submarine' s initial position, speed, course, and so on, an analytic model of search probability on MAD circle search is established, and the circle radius making the search probability maximum is derived. Based on the air line simulation algorithm, considered the maneuverability of patrol aircraft, a mathematic model of route planning for the patrol aircraft to search submarine in spiral is established, and the search efficiency is simulated and analyzed with Monte Carlo method. The simulation results show that the search probability is basically identical to the calculation result by using analytic model and the search efficiency is improved obviously.