کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1718034 1520097 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Unified nonlinear optimal flight control and state estimation of highly maneuverable aircraft
ترجمه فارسی عنوان
کنترل پرواز بهینه غیر خطی متحد و تخمین وضعیت هواپیماهای بسیار منهدم کننده
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
چکیده انگلیسی

In this paper, a nonlinear flight control and a nonlinear state observer are designed in one unified framework for a high performance aircraft. The flight control is formulated as a nonlinear optimal control problem and the θ-D technique is utilized to design a closed-form optimal control law by solving the associated Hamilton–Jacobi–Bellman equation approximately via a perturbation process. Motivated by the notion that control and estimation are dual concepts, a new θ-D observer is developed to estimate the state used in the feedback by constructing the dual of the θ-D controller. Theoretical analysis of the proposed observer is given. Since both the optimal flight control and the state observer are unified in the same θ-D algorithm that leads to closed-form solutions to the optimal control and observer gains, this scheme greatly facilitates onboard implementation due to its computation efficiency. The unified design method is applied to a highly maneuverable aircraft operating at high angles of attack. Simulation results show that the θ-D control-θ-D observer suite exhibits excellent performance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aerospace Science and Technology - Volume 37, August 2014, Pages 70–80
نویسندگان
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