Journal of Astronautics ›› 2020, Vol. 41 ›› Issue (9): 1184-1194.doi: 10.3873/j.issn.1000-1328.2020.09.009

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Method of Predicted Impact Point Planning for Near Space Target Interception

YIN Zhong jie , LIU Kai , ZHU Bai yang , WEI Wen shu , AN Shuai bin   

  1. 1. School of Aeronautics and Astronautics, Dalian University of Technology, Dalian 116024, China; 2. Key Laborator of Adranced  Technology for Aerospace Vehicles, Dalian 116024, China; 3. Beijing Institute of Aerospace Technology, Beijing 100074, China; 4. China Academy of Launch Vehicle Technology,Beijing 100076, China

  • Received:2020-02-03 Revised:2020-03-18 Online:2020-09-15 Published:2020-09-27

Abstract: The conceptual scheme of target interception in near space based on air breathing hypersonic platform is proposed. Considering that the flight strategy of an air breathing interceptor platform is different from that of a rocket power interceptor, the traditional design method for the planning of predicted impact point is not applicable. Thus, the research on the design method for the planning of predicted impact point for air breathing hypersonic platform is carried out. Firstly, based on the principle of maximum intercepting airspace, the nominal trajectories of hypersonic intercepting platform are constructed by combining with the air breathing dynamic flight strategy. Then, the problem of iterative intercept points satisfying the multiple constraints is transformed into the problem of iterative intercept time based on the range constraints and the process of filtering out the intercept points that meet the high constraint. Finally, the simulation results show the effectiveness of the proposed predicted impact point planning method for an air breathing hypersonic interception platform.

Key words: Hypersonic vehicle, Predicted impact point, Nominal trajectories

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