Article Title
Optimal terminal-time determination for the ZEM/ZEV feedback guidance law with generalized performance index
Keywords
Zero-Effort-Miss/Zero-Effort-, Velocity (ZEM/ZEV), optimal feedback guidance, terminal-time determination, intercept, rendezvous
Abstract
This paper investigates a problem of determining the optimal terminal-time or time-to-go ofthe ZEM/ZEV (Zero-Effort-Miss/Zero-Effort-Velocity) feedback guidance law for a varietyof orbital intercept or rendezvous maneuvers. A generalized ZEM/ZEV guidance problem,whose objective is to minimize a combination of the control energy and terminal time, isexamined. Algebraic equations whose solution provides the optimal terminal-time of theorbital intercept/rendezvous problems are derived based on the optimal control theory.The effectiveness of the proposed approach is demonstrated for various orbital maneuverproblems.
Publisher
Tsinghua University Press
Recommended Citation
Jaemyung Ahn, Pengyu Wang, Yanning Guo et al. Optimal terminal-time determination for the ZEM/ZEV feedback guidance law with generalized performance index.Astrodyn.2019, 3(2): 127–136.