Multimedia Simulation, Anti-torpedo Torpedo Trajectory

With the development of torpedo technology, torpedo does harm to naval ships and submarines more and more. The defending capacity of naval ships and submarines become an important project. The technology of ATT (Anti-Torpedo Torpedo) is an important aspect in anti-torpedo technology. It is very important to develop the technology of ATT to enhance naval ships and submarines' viabilities.In this dissertation, the optimal control & homing law of ATT is explored and the Multimedia Simulation technology is discussed. Research works is follows:(1) The developing status and the specialty of the control & homing law of ATT is surveyed. Especially, the issues of the control & homing law of ATT that must be taken into account are reviewed.(2) On the basis of analyzing relative orientation of ATT and enemy torpedo, we simplified the dynamical equations of the control object.(3) Adopting minimal energy index, we present a head-on interception guidance law. We deemed the zero-effect state and the head-on interception as the terminal condition. According to the control & homing law of torpedo, the head-on interception guidance law is simplified. So, a control & homing instruction of torpedo is presented.(4) According to the control & homing instruction of torpedo, the performance of the ATT intercepting the enemy torpedo is evaluated. The results show preliminarily that the guidance law possesses superior performance.(5) Studying the plane motion of the enemy torpedo and ATT, we generate the precise model. We design a Non-linear control law.(6) An efficient hybrid genetic algorithm is applied to seek for optimum solution to the Non-linear control law. We devise genetic algorithm program and carry through numerical simulation.(7) The Multimedia Simulation process that has 3D real graphics display function is realized. The software can evaluate the performance of ATT.