MODELING, SIMULATION AND ANALYSIS OF ESTIMATION OF FLIGHT STATE FOR GUIDED PROJECTILES
To improve the accuracy of guidance and control for various types of guided projectiles, it is necessary to provide relatively precise control parameters for control system of projectiles. Therefore, how to obtain a better estimation of flight state for guided projectiles by means of Kalman filtering is discussed in this paper. This paper focuses on a type of finstabilized projectile with low rolling speed and develops an extended point-mass trajectory model, based on which both the motion and measurement equation are established with the assumption of radar detection system. The application characteristics of Extended Kalman Filtering (EKF) and Linearized Kalman Filtering (LKF) are analyzed. Finally, an improved LKF is proposed, by using which the online computation burden is reduced and the precision of Kalman filtering is improved.
CHANG Si-jiang WANG Zhong-yuan
Power Engineering College, Nanjing University of Science and Technology, P. O. Box 210094, Nanjing, Ballistic Research Laboratory of China, Nanjing University of Science & Technology, P. O. Box 210094
国际会议
25th International Symposium on Ballistics(第25届国际弹道会议)
北京
英文
286-292
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）