An impact time and angle control guidance law under variable speed condition

被引：0
|
作者：
Cheng Z.-Q. [1 ]
Yan X.-H. [2 ]
Zhang F. [1 ]
Zhu J.-H. [3 ]
机构：
[1] Key Laboratory of Complex Ship System Simulation, Beijing
[2] Northwestern Polytechnical University, Shaanxi, Xi’an
[3] Tsinghua University, Beijing
来源：
Kongzhi Lilun Yu Yingyong/Control Theory and Applications | 2024年 / 41卷 / 02期
关键词：
bezier curve; impact angle; impact time; trajectory design; variable speed;
D O I：
10.7641/CTA.2023.20660
中图分类号：
学科分类号：
摘要：
Impact-time-and-angle-control guidance (ITACG) law can realize that multiple missiles strike from different impact angles at the same time, which has a wide range of military applications. However, the current methods to solve the ITACG problem rarely consider the variable speed which will cause great limitations in practical application. Based on the two-segment trajectory of Bezier curve and straight line, we analyze the pattern of maximum curvature of the trajectory, and prove that the trajectory length is monotonic with straight-line length. Second, this paper uses binary search to determine the whole trajectory. Third, to control the impact time, we design a Bezier-PI controller that dynamically adjusts the straight-line length. The guidance algorithm has small calculation and strong robustness, which is suitable for real-time calculation by missile-borne computers. The simulation results verified that the algorithm has strong robustness to the induced drag and parasite drag disturbance and can reach a high precision impact time and impact angle. © 2024 South China University of Technology. All rights reserved.
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页码：364 / 372
页数：8
相关论文
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