水声多诱饵对抗环境鱼雷导引方法

摘要

Submarine and decoys exist under the decoy jamming environment. Traditional trajectory guide methods of the torpedo couldn't guarantee the need for identifying and attack requires simultaneously on multiple targets. The torpedo guidance method framework of the multi-decoy environment is suggested. Founding on the theory of the artificial potential field, a multi-objective guidance method is also provided. The method combines the target plausibility probability and the guiding direction systematically which can consider all targets' effect to the torpedo. Firstly, the tract target is decided using the probability of all targets and then the traction attention rate of the target is computed;next, the repulsion in artificial potential field is improved and the concept of attracting attention is posed, the attracting attention and guiding attention rate of all other targets can be got;finally, the angular velocity of the torpedo with the limitation of its maneuvering capability is calculated. Simulation using static target piles and moving objects demonstrated that, the method cannot only guarantee the attack of the maximum probability target and at the same time can give consideration to detection and recognition of as much as possible targets. It can improve the accuracy of the attack significantly.%针对声诱饵对抗环境下,鱼雷常规的弹道导引方法难以兼顾对多个目标进行识别与打击要求,提出了多诱饵环境鱼雷导引方法基本框架,并基于人工势场提出多目标导引方法.该方法把目标似真概率和导引方向结合起来,使各目标在准确度未确定情况下对弹道的影响作用均能得以体现.首先依据各目标的概率确定牵引目标并计算出牵引关注度;进而,改进人工势场法的排斥因素,提出了吸引关注度概念,计算其他目标的吸引关注度及导引关注度;最后在机动能力限定下确定出鱼雷的角速度.静态靶桩仿真和运动目标仿真实验结果表明,该方法在保证对似真概率最大的目标进行打击的同时,能尽可能兼顾对多目标的探测识别,能显著提高水声多诱饵环境下目标打击的准确性.