93-153
Neighboring Optimal Guidance For Aeroassisted Orbital Plane Change With G Value Constraint
Jeng-Shing Chern*, Fu-Kuo Hsu** and Ching-Chyuan Lin***
Abstract
In the last decade, the optimal aeroassisted trajectories, either for reentry or orbital transfer, have been investigated extensively At the same time, the guidance and control problems for these missions are attracting scientists gradually. The purpose of this paper IS to develop a neighboring optimal guidance 10r aeroassisted orbital plane change with G-value constraint. The nominal optimal trajectory for maximizing the orbital plane change with G-value constraint is computed with specified initial and final conditions. We then assume that there are small variations in initial values of the state variables, and try to guide the vehicle back to the nominal optimal trajectory under G-value constraint of 2 5 by using the neighboring optimal guidance law developed in this paper. The displacements of the switching points are calculated and discussed.
*Senior Scientist. Chung Shan Institute of Science and Technology, P.0. Box 90008-6-7, Lungtan, Taiwan 432526, Republic of China.
**Associate Scientist, Chung Shan Institute of Science and Technology, P.0. Box 90008-6-7, Lungtan, Taiwan 432526. Republic of China
***Assistant Scientist. Chung Shan Institute of Science and Technology, P.0. Box 90008-6-7, Lungtan, Taiwan 432526. Republic of China.