![](/images/graphics-bg.png)
Steepest-Ascent Revisited: Unconstrained Missile Trajectory
Joint Authors
Khalil, Elsayed M.
Zhou, Hao
Chen, Wanchun
Source
International Journal of Aerospace Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-09-14
Country of Publication
Egypt
No. of Pages
11
Abstract EN
A Steepest-Ascent numerical procedure for offline trajectory optimization of a surface-to-surface missile attacking a stationary target is presented.
A detailed numerical solution, starting from building the mathematical formulation till generating an offline angle of attack control history, is illustrated.
A novel approach for guessing a nominal control program is conducted.
The formulation entails nonlinear 2-DOF missile flight dynamics with mixed boundary conditions.
The technique of changing of variables is adopted to convert the free-final-time optimization problem to a fixed-final-time one.
The influences of the optimization algorithm controlling parameters are investigated.
A new form of the weighting matrix is proposed.
A novel technique of relaxation factors for eliminating the terminal states violation is described.
Finally, a comparison between the obtained control history and the one obtained by a nonlinear optimal control package “GPOPS” is presented.
The results indicate that the use of Steepest-Ascent method, to a great extent, is comparable in accuracy and iteration time to the pseudospectral optimization package “GPOPS.” This paper, to a great extent, is a detailed procedure for the method of Steepest-Ascent analyzed and verified by the authors from many undetailed sources to disclosure of the main problems faced by user of Steepest-Ascent.
American Psychological Association (APA)
Khalil, Elsayed M.& Zhou, Hao& Chen, Wanchun. 2014. Steepest-Ascent Revisited: Unconstrained Missile Trajectory. International Journal of Aerospace Engineering،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1035955
Modern Language Association (MLA)
Khalil, Elsayed M.…[et al.]. Steepest-Ascent Revisited: Unconstrained Missile Trajectory. International Journal of Aerospace Engineering No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-1035955
American Medical Association (AMA)
Khalil, Elsayed M.& Zhou, Hao& Chen, Wanchun. Steepest-Ascent Revisited: Unconstrained Missile Trajectory. International Journal of Aerospace Engineering. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1035955
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1035955