TY - JFULL AU - Yanan Yang and Zhigang Wang and Xiang Chen PY - 2012/9/ TI - An Optimization of Orbital Transfer for Spacecrafts with Finite-thrust Based on Legendre Pseudospectral Method T2 - International Journal of Mathematical and Computational Sciences SP - 1040 EP - 1045 VL - 6 SN - 1307-6892 UR - https://publications.waset.org/pdf/6319 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 68, 2012 N2 - This paper presents the use of Legendre pseudospectral method for the optimization of finite-thrust orbital transfer for spacecrafts. In order to get an accurate solution, the System-s dynamics equations were normalized through a dimensionless method. The Legendre pseudospectral method is based on interpolating functions on Legendre-Gauss-Lobatto (LGL) quadrature nodes. This is used to transform the optimal control problem into a constrained parameter optimization problem. The developed novel optimization algorithm can be used to solve similar optimization problems of spacecraft finite-thrust orbital transfer. The results of a numerical simulation verified the validity of the proposed optimization method. The simulation results reveal that pseudospectral optimization method is a promising method for real-time trajectory optimization and provides good accuracy and fast convergence. ER -