航天器近距离视觉制导自主机动轨道优化

研究具有视觉导引路径约束的航天器近距离机动轨道优化数值计算问题。首先,给出了带路径约束的椭圆参考轨道航天器近距离轨道机动最优化问题数学模型。利用高斯伪谱法将上述最优化问题转化为非线性规划问题,优化参数为配点上的状态量和控制量。然后,利用MATLAB的SNOPT软件包对非线性规划问题进行求解。最后通过数值仿真验证了方法的有效性和鲁棒性。

Trajectory Optimization for Spacecraft Proximity Autonomous Maneuver with Vision Guidance

Trajectory optimization for spacecraft proximity maneuver with vision guidance path constraints is studied in this paper.At the beginning,the model of spacecraft proximity orbit maneuver for elliptic orbit optimization problem with path constraints is built.After that,the optimal problem is transformed into a Nonlinear Programming problem(NLP) by using gauss pseudospectral method.The state variables and control variables are selected as optimization parameters at all collocation nodes.Then,the resulting NLP is solved by using MATLAB software package SNOPT.Finally,simulation results verify that the proposed method is valid and robust.