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http://dx.doi.org/10.5139/JKSAS.2017.45.8.662

Optimization-Based Determination of Apollo Guidance Law Parameters for Korean Lunar Lander  

Jo, Byeong-Un (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology)
Ahn, Jaemyung (Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.45, no.8, 2017 , pp. 662-670 More about this Journal
Abstract
This paper proposes an optimization-based procedure to determine the parameters of the Apollo guidance law for Korean lunar lander mission. A lunar landing mission is formulated as a trajectory optimization problem to minimize the fuel consumption and the reference trajectory for the lander is obtained by solving the problem in the pre-flight phase. Some parameters of the Apollo guidance, which are coefficients of the polynomial used to define the guidance command, are selected based on the reference trajectory obtained in the pre-flight phase. A case study for the landing guidance of Korean lunar lander mission using the proposed procedure is conducted to demonstrate its effectiveness.
Keywords
Apollo Mission; Trajectory Optimization; Polynomial Guidance Law; Targeting Program;
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