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http://dx.doi.org/10.5139/JKSAS.2004.32.6.072

Trajectory Optimization and Guidance for Terminal Velocity Constrained Missiles  

Ryoo, Chang-Kyung (한국과학기술원 항공우주공학과)
Tahk, Min-Jea (한국과학기술원 항공우주공학과)
Kim, Jong-Han (국방과학연구소)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.32, no.6, 2004 , pp. 72-80 More about this Journal
Abstract
In this paper, the design procedure of a guidance algorithm in the boosting phase of missiles with free-flight after thrust cut-off is introduced. The purpose of the guidance is to achieve a required velocity vector at the thrust cut-off. Trajectory optimizations for four cost functions are performed to investigate implementable trajectories in the pitch plane. It is observed from the optimization results that high angle of attack maneuver in the beginning of the flight are required to satisfy the constraints. The proposed guidance algorithm consists of the pitch program to produce open-loop pitch attitude command and the yaw attitude command generator to nullify the velocity to go. The pitch program utilizes the pitch attitude histories obtained from the trajectory optimization.
Keywords
Guidance Algorithm; Trajectory Optimization; Pitch Program; High Angle of Attack Maneuver;
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