Costate mapping for indirect trajectory optimization  

作　　者：Ehsan Taheri Vishala Arya John L.Junkins 

机构地区：[1]Department of Aerospace Engineering,Auburn University,Auburn,AL 36849,USA [2]Department of Aerospace Engineering,Texas A&M University,College Station,TX 77843-3141,USA

出　　处：《Astrodynamics》2021年第4期359-371,共13页航天动力学（英文）

摘　　要：Numerical solutions of optimal control problems are influenced by the appropriate choice of coordinates.The proposed method based on the variational approach to map costates between sets of coordinates and/or elements is suitable for solving optimal control problems using the indirect formalism of optimal control theory.The Jacobian of the nonlinear map between any two sets of coordinates and elements is a key component of costate vector mapping theory.A new solution for the class of planar,free-terminal-time,minimum-time,orbit rendezvous maneuvers is also presented.The accuracy of the costate mapping is verified,and its utility is demonstrated by solving minimum-time and minimum-fuel spacecraft trajectory optimization problems.

关 键 词：indirect optimization SPACECRAFT trajectory optimization optimal control theory minimum time minimum fuel INTERPLANETARY Earth-centered low thrust 

分 类 号：P185[天文地球—天文学]