کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1715934 1519987 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimal guidance for reentry vehicles based on indirect Legendre pseudospectral method
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
Optimal guidance for reentry vehicles based on indirect Legendre pseudospectral method
چکیده انگلیسی

Development of a feasible guidance scheme for reentry vehicles is a challenge because of its significant nonlinearity and multi-constraints. A method for the implementation of three-degree-of-freedom guidance for constrained reentry vehicle is presented in the paper. First, the constrained trajectory is generated by Legendre pseudospectral method (LPM) and then the feasibily of the trajectory is validated. Based on the obtained reference trajectory, the guidance problem is converted into a trajectory state regulation problem which is a linear time varying system. A robust state feedback guidance law is generated in real time using indirect Legendre pseudospectral feedback method. Finally, simulation results illustrate that the overall guidance scheme can lead to a very accurately controlled flight with all the constraints satisfied even in the presence of initial state uncertainty.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Astronautica - Volume 68, Issues 7–8, April–May 2011, Pages 1176–1184
نویسندگان
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