Research On Optical Landing Aid System

The purpose of this dissertation is to establish the whole control structure of the manually carrier landing aid system for the recovery of carrier aircrafts based on the guidance of the glideslope optical beam, and to present the pilot's corresponding control strategy. Therefor, this dissertation studies futher on the optical principle of forming the"meatball"of the optical landing aid system, creates the kinematics geometry of glideslope, provides the method of adjusting static ship mistrims and stabilizing dynamic deck motions, designs the pilot-in-loop glideslope optical landing aid system, and finally presents the real-time simulation program and a visual demonstrate system.The features and achievements of this dissertation are as follows: Firstly, the components of optical landing aid system are described in detail, and the optical principle of forming glideslope optical beam and the"meatball"is presented briefly. Secondly, in order to establish and design the glideslope optical landing aid system, the kinematics geometry of glideslope is educed, according to which, the pilot's control strategy is obtained. Thirdly, in order to establish and stabilize the reference optical beam, the method of adjusting static ship mistrims and stabilizing dynamic deck motions is presented. And the coresponding landing aid control law is designed. Also, the method of acounting the terminal errors in carrier landing are presented. Fourthly, the function of AVCARS is studied, with the guidance of which, the pilot could control glideslope more easily. Lastly, the pilot's control strategy and coresponding control law in pursuit of the"meatball"is developed. For the glideslope optical landing aid system designed afore, a digital simulation and a discrete disposal is made, a real-time simulation application software is designed in C++ language, and the coresponding visual demonstration system is developed.The achievements of this dissertation contribute to the academic research and engineering application of desinging glideslope optical landing aid system, developing the pilot's control law, and acounting terminal errors in carrier landing.