沉降时间
趋同(经济学)
法学
控制理论(社会学)
期限(时间)
数学
计算机科学
工程类
控制(管理)
物理
控制工程
阶跃响应
人工智能
经济
量子力学
经济增长
政治学
作者
Jianan Wang,Xizi Tao,Wei Dong,Huixia Wang,Chunyan Wang
出处
期刊:Lecture notes in electrical engineering
日期:2023-01-01
卷期号:: 7079-7087
标识
DOI:10.1007/978-981-19-6613-2_682
摘要
A modified finite-time impact angle control guidance (IACG) law is developed. First, based on the biased proportional navigation guidance (PNG) approach, the finite-time convergent impact-angle error dynamic is deduced from the guidance model. Then, a modified IACG law considering finite-time convergence is designed by inserting a time-to-go term into the dominator of the biased term. Furthermore, the finite-time stability and the explicit settling time of the impact-angle error dynamic is derived via utilizing the approach of Lyapunov analysis. Unlike the conventional IACG laws achieving finite-time convergence, the advantage of this modified guidance law is that the settling time for the impact-angle error is always smaller than the final time. Hence, under different initial impact-angle errors, the modified guidance law assures achieving the impact-angle error convergence before interception. Besides, it is convenient to adjust parameters. Finally, some numerical simulations under various scenarios are provided to confirm the properties of the modified finite-time convergent guidance law.
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