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http://dx.doi.org/10.5139/JKSAS.2021.49.1.21

Mid-course Trajectory Optimization for Boost-Glide Missiles Based on Convex Programming  

Kwon, Hyuck-Hoon (LIG Nex1)
Hong, Seong-Min (LIG Nex1)
Kim, Gyeong-Hun (LIG Nex1)
Kim, Yoon-Hwan (LIG Nex1)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.49, no.1, 2021 , pp. 21-30 More about this Journal
Abstract
Mid-course trajectory of the missiles equipped with seeker should be designed to detect target within FOV of seeker and to maximize the maneuverability at the point of transition to terminal guidance phase. Because the trajectory optimization problems are generally hard to obtain the analytic solutions due to its own nonlinearity with several constraints, the various numerical methods have been presented so far. In this paper, mid-course trajectory optimization problem for boost-glide missiles is calculated by using SOCP (Second-Order Cone Programming) which is one of convex optimization methods. At first, control variable augmentation scheme with a control constraint is suggested to reduce state variables of missile dynamics. And it is reformulated using a normalized time approach to cope with a free final time problem and boost time problem. Then, partial linearization and lossless convexification are used to convexify dynamic equation and control constraint, respectively. Finally, the results of the proposed method are compared with those of state-of-the-art nonlinear optimization method for verification.
Keywords
Convex Optimization; Lossless Convexification; Trajectory Optimization; Second-Order Cone Programming;
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