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Research on Intelligent Guidance Law and Simulation of Air-to-air Missile

Author: ZhouZhongWang
Tutor: JiangChangSheng
School: Nanjing University of Aeronautics and Astronautics
Course: Weapons systems and the use of engineering
Keywords: Singular perturbation in the Guidance Law Neural network guidance law 3D Terminal Guidance Law Fuzzy Adaptive Guidance Law In the end of the shift Adaptive shift Guidance Law Feedback recursive control law Visual Simulation
CLC: TJ762.23
Type: Master's thesis
Year: 2008
Downloads: 582
Quote: 2
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Abstract


This paper focuses on the three-dimensional air-to-air missiles in the guidance law, 3D Terminal Guidance Law, terminal guidance shift instruction following control law and air-to-air attack 3D visual simulation aspects launched a series of research work: First, based on the singular perturbation The control method and neural network intelligent method guided the design of the air-to-air missiles in the problem. Based on reasonable assumptions, the derivation of the model of the air-to-air missiles, the the target typical motorized model missile and target three-dimensional fugitives model. According to the singular perturbation theory, the guidance and control system is divided into fast and slow circuit, and a slow loop optimal controller and fast loop two border controllers were designed, and then get in Guidance Law singular perturbation. Taking into account the guided air-to-air missiles in case of lack or loss of target information, research and design a neural network guidance law to achieve the air-to-air missile after launching the performance requirements. Followed by the three-dimensional at the end of the air-to-air missile guidance law. For most of the target in the air combat with the actual battlefield mobility, on the basis of parallel close to the law, combined with feedback the recurrence control method, a new 3D Terminal Guidance Law; fuzzy approximation principle designed adaptive fuzzy control were error compensation, the simulation results show that the proposed three-dimensional guidance law based on fuzzy adaptive feedback recursion theory is valid, and in the case of target maneuver than proportional guidance law has stronger robustness and adaptability. Next, the air-to-air missile terminal guidance shift. The main contents include two aspects in terminal guidance seeker shift and ballistic smooth transition. Solve the terminal guidance seeker shift route planning problem, is based in the guidance method to determine the predicted intercept point, shift change time, seeker initial pre declination and missiles the best flight heading such as shift change. In terminal guidance the shift ballistic smooth transition process of adaptive terminal guidance shift the ballistic handover algorithm, and the whole trajectory Simulation. Followed by air-to-air missile control law. Based feedback control methods and neural network theory recursive control, focus on the point of view of the air-to-air missiles instruction to follow and system stability issues, analysis of parameters floating and modeling uncertain impact on the system, and gives feedback based on online neural network the recurrence control law, simulation results show its effectiveness. Finally, on the Windows platform based on the virtual simulation software MultiGen Creator, Vega and VC ground attack 3D visual simulation, a vivid demonstration of the missile attack ground targets.

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CLC: > Industrial Technology > Arms industry > Rockets, missiles > Missile > Missiles: points by means of transmission > Space-based type > Air-to-air
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