Identification of high-spinning projectile drag coefficient using an unscented Kalman filter

摘要：

　　To obtain the drag coefficient of a high-spinning projectile, an Unscented Kalman Filter (UKF) is used in this paper to estimate the parameter.First, the feasibility and scientificalness of why to choose the 4D ballistic model is analysed.Then, the basic theory of UKF is given with a brief introduction and designing the filter.Lastly, in order to verify the accuracy of UKF identification, the results of Extended Kalman Filter (EKF) identification are compared.The result shows that in the case of the variational drag coefficient with the Mach number, the UKF can estimate the drag coefficient effectively, and the UKF has a better performance than the EKF.

关键词： Spinning stabilized projectile Aerodynamic parameter estimation Unscented Kalman filter Drag coefficient

作者: Yu-cheng ZHENG Wen-jun YI Jun GUAN

作者单位: National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing, Jiangsu, China

会议类型: 国际会议

会议名称: 2018 International Conference on Defence Technology (2018国际防务技术会议)

会议地点: 北京

会议语种:英文

页码: 893-897

在线出版日期: 2018-10-21（万方平台首次上网日期，不代表论文的发表时间）