反鱼雷鱼雷自适应滑模导引律

摘要

针对在目标机动性加大的情况下常规鱼雷导引方法不能满足反鱼雷鱼雷迎面拦截来袭鱼雷需求的问题，为提高反鱼雷鱼雷拦截概率，提出了利用滑模观测/微分器对来袭鱼雷视线角速率进行估计的方法，基于李雅普诺夫稳定性理论，根据准平行接近的原理，推导出一种自适应滑模导引律。将该方法运用于反鱼雷鱼雷跟踪拦截，仿真结果表明，该导引律对干扰和参数摄动具有强鲁棒性，与传统比例导引法相比，其对机动目标的导引精度高，脱靶量小，可以满足反鱼雷战技术的需求。%For highly maneuvering targets,the guidance law of traditional torpedo can’t satisfy the requirement of anti-torpedo-torpedo frontally intercepting incoming torpedo.Aiming at this problem,the LOS angular rate was estimated by using the sliding mode observer/differentiator. An adaptive sliding mode guidance law was proposed based on Lyapunov’s stability theory.The method was applied in tracking and interception of anti-torpedo-torpedo.The simulation results show that the guidance law is highly robust to noise and parameter disturbance.Campared with the traditional proportional guidance law,the proposed law has high accuracy,and the miss distance is small.The proposed law can satisfy the tactical and technical requirement of anti-torpedo torpedo.