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:: Volume 10, Issue 1 (3-2023) ::
2023, 10(1): 84-97 Back to browse issues page
A Composite Nonlinear Feedback Based Guidadance Law for Guidance Problem in Presence of Constrained Latteal Accelation
Valiollah Ghaffari * , Hasan Mohammadkhan
Persian Gulf University , vghaffari@pgu.ac.ir
Abstract:   (1395 Views)
Usually, constrained lateral acceleration would have undesirable effects on the stability and performance of a guidance system. The composite nonlinear feedback (CNF) can be effectively used to improve the transient response of the closed-loop system in the presence of the constrained input. In this way, guidance law consists of an extra nonlinear term besides the conventional linear one. As a result, such a term adjusts the qualitative characteristics of the transient response. Meanwhile, the nonlinear term is a function of the rate of line-of-sight (LOS) angle which is not activated at origin and infinity. Thus it would be effective only in a specified region. In this paper, proportional navigation is employed for the linear term of the CNF-based guidance law. Therefore, a guidance algorithm is developed for tracking problems using the CNF idea. Applying the proposed guidance method, the closed-loop stability is analytically proved via the well-known Lyapunov stability theory. The suggested approach is simulated in a numerical example. Then the results are compared with an existing technique. As expected, guaranteeing closed-loop stability, in contrast to a similar method, the addressing scheme considerably improves the performance and transient response of the guidance system in the presence of lateral acceleration limitations.
Article number: 4
Keywords: Guidance law, composite nonlinear feedback, line-of-sight.
Full-Text [PDF 10304 kb]   (432 Downloads)    
Type of Study: Research | Subject: Nonlinear Control
Received: 2023/04/29 | Accepted: 2023/07/6 | Published: 2023/12/12
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Ghaffari V, Mohammadkhan H. A Composite Nonlinear Feedback Based Guidadance Law for Guidance Problem in Presence of Constrained Latteal Accelation. Nonlinear Systems in Electrical Engineering 2023; 10 (1) : 4
URL: http://journals.sut.ac.ir/jnsee/article-1-447-en.html

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Volume 10, Issue 1 (3-2023) Back to browse issues page
سامانه های غیرخطی در مهندسی برق Journal of Nonlinear Systems in Electrical Engineering
نشریه سامانه‌های غیرخطی در مهندسی برق در خصوص اصول اخلاقی انتشار مقاله، از توصیه‌های «کمیته بین‌المللی اخلاق نشر» موسوم به COPE و «منشور و موازین اخلاق پژوهش» مصوب معاونت پژوهش و فناوری وزارت علوم، تحقیقات و فناوری تبعیت می‌کند.
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