Reachable set modeling and engagement analysis of exoatmospheric interceptor  

作　　者：Chai Hua Liang Yangang Chen Lei Tang Guojin 

机构地区：[1]College of Aerospace Science and Engineering, National University of Defense Technology

出　　处：《Chinese Journal of Aeronautics》2014年第6期1513-1526,共14页中国航空学报（英文版）

基　　金：co-supported by the National Natural Science Foundation of China (No. 11272346);the National Basic Research Program of China (No. 2013CB733100)

摘　　要：A novel reachable set（RS） model is developed within a framework of exoatmospheric interceptor engagement analysis. The boost phase steering scheme and trajectory distortion mechanism of the interceptor are firstly explored. A mathematical model of the distorted RS is then formulated through a dimension–reduction analysis. By treating the outer boundary of the RS on sphere surface as a spherical convex hull, two relevant theorems are proposed and the RS envelope is depicted by the computational geometry theory. Based on RS model, the algorithms of intercept window analysis and launch parameters determination are proposed, and numerical simulations are carried out for interceptors with different energy or launch points. Results show that the proposed method can avoid intensive on-line computation and provide an accurate and effective approach for interceptor engagement analysis. The suggested RS model also serves as a ready reference to other related problems such as interceptor effectiveness evaluation and platform disposition.A novel reachable set（RS） model is developed within a framework of exoatmospheric interceptor engagement analysis. The boost phase steering scheme and trajectory distortion mechanism of the interceptor are firstly explored. A mathematical model of the distorted RS is then formulated through a dimension–reduction analysis. By treating the outer boundary of the RS on sphere surface as a spherical convex hull, two relevant theorems are proposed and the RS envelope is depicted by the computational geometry theory. Based on RS model, the algorithms of intercept window analysis and launch parameters determination are proposed, and numerical simulations are carried out for interceptors with different energy or launch points. Results show that the proposed method can avoid intensive on-line computation and provide an accurate and effective approach for interceptor engagement analysis. The suggested RS model also serves as a ready reference to other related problems such as interceptor effectiveness evaluation and platform disposition.

关 键 词：Engagement analysis Flight dynamics Interception Reachable set Spherical convex hull 

分 类 号：TJ760[兵器科学与技术—武器系统与运用工程]