基于扰动大气模型的空基拦截器轨迹规划

山东大学学报(工学版)

基于扰动大气模型的空基拦截器轨迹规划

王萍¹, 潘伟²

1. 西北工业大学航天学院, 陕西西安 710072;
2. 山东大学机械学院, 山东济南 250061

收稿日期:2008-03-10 修回日期:1900-01-01 出版日期:2008-10-16 发布日期:2008-10-16
通讯作者: 王萍

Trajectory planning for an air-based interceptor using a perturbation atmosphere model

WANG Ping¹, PAN Wei²

1. College of Astronautics, Northwestern Polytechnical University, Xi’an 710072, China;
2. School of Mechanical Engineering, Shandong University, Jinan 250061, China

Received:2008-03-10 Revised:1900-01-01 Online:2008-10-16 Published:2008-10-16
Contact: WANG Ping

摘要/Abstract

摘要： 针对运行于地球低轨的威胁目标,提出了一种可用于空基拦截器的精确轨迹规划方法. 考虑了大气密度与风场的系统性扰动,建立了有限推力拦截器最优控制问题动力学模型,并用直接配置法与序列二次规划法(sequential quadratic programming, SQP)进行了数值求解,得到了更加精确的拦截轨迹. 最后用算例证明了方法的有效性.

关键词: 拦截器, 扰动大气模型, 轨迹规划

Abstract: Aiming at enemy targets in low earth orbit, a more accurate trajectory planning method used for air-based interceptors was put forward. Considering the system perturbation of the atmosphere’s density and wind field, the optimal control model of a finite-thrust interceptor was derived. This model was resolved by the direct collocation method and SQP, which led to a more accurate trajectory of the interceptor. Results of a simulation study show the effectiveness of this proposed trajectory planning method.

Key words: interceptor, perturbation atmosphere model, trajectory planning

中图分类号:

V448

王萍,潘伟 . 基于扰动大气模型的空基拦截器轨迹规划[J]. 山东大学学报(工学版), 2008, 38(5): 62-66 .

WANG Ping,PAN Wei . Trajectory planning for an air-based interceptor using a perturbation atmosphere model[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2008, 38(5): 62-66 .

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