The Engineering Application Solutions Of Strapdown Semi-active Laser Seeker About A Certain Type Of Guided Bomb

The laser guided bomb because of its strong anti-interference ability and high accuracy,has played an extremely important role in the modern local war in the world.But the guided bombs have been large-scale used,the cost of the war is greatly improved and the application of strap-down seek,and the body has the advantages of simple structure and reduced volume,so the cost can be reduced.In the paper,the research and analysis of the laser guided bomb strap-down guidance system is presented,and the method of strap-down guidance information extraction and the engineering realization of the strap-down guidance law are given.Firstly,the origin and significance of the subject is introduced in this thesis,describing the current development of the laser guidance technology and its application in the analysis of guided bomb,with the current research and development of strap-down seek at the exhibition;secondly,introduces the related definition and coordinate transformation relation and for the six degree of freedom motion model of guided bomb and small perturbation motion model for mathematical modeling and analysis,detailed analysis of semi active laser strap-down seeker technology scheme,analyzes the strap-down seeker isolation problem;thirdly,according to the strap-down seeker los rate extraction technology studied,a detailed analysis of the extended design Kalman filtering method the los rate estimation method in the wake of the strap-down guidance law;finally,the mathematical simulation verification is carried out based on the strap-down guidance law.The method of combining theoretical analysis with simulation experiments is adopted,according to the characteristics of laser strap-down seeker.The strap-down guidance law is put forward several design schemes,and prove the correctness and feasibility throughthe six degree of freedom simulation.