UCAV Formation Online Collaborative Trajectory Planning Using hp Adaptive Pseudospectral Method

Nonlinear Optimal Trajectory Planning for Free-Floating Space Manipulators using a Gauss Pseudospectral Method

In this paper, an optimal trajectory guidance law is developed for a free-floating space manipulator through a combination of a Gaussian pseudospectral collocation scheme with a Non-Linear Problem solver. Specifically, the resulting nonlinear optimal guidance problem with path constraints is defined with the general pseudospectral optimal software and numerically solved by the sparse nonlinear ...

An Integrated Multicriterion hp-Adaptive Pseudospectral Method for Direct Optimal Control Problems Solving

Pseudospectral methods PMs for solving general optimal control problems OCPs attract an increasing amount of research and application in engineering. It is challenging to improve the convergence rate, the solution accuracy, and the applicability of PMs, especially for nonsmooth problems. Existing hp-adaptive PMs consider only one heuristic criterion, which cannot produce satisfactory performanc...

Reentry Trajectory Optimization Based on a Multistage Pseudospectral Method

Of the many direct numerical methods, the pseudospectral method serves as an effective tool to solve the reentry trajectory optimization for hypersonic vehicles. However, the traditional pseudospectral method is time-consuming due to large number of discretization points. For the purpose of autonomous and adaptive reentry guidance, the research herein presents a multistage trajectory control st...

Adaptive Robotic Communication using Coordination Costs for Improved Trajectory Planning

Designers of robotic groups are faced with the formidable task of creating effective coordination architectures that can plan and replan trajectories even when faced with changing environment conditions and hardware failures. Communication between robots is one mechanism that can at times be helpful in such systems, but can also create a time and energy overhead that reduces performance. In dea...

Finite-Thrust Trajectory Optimization Using a Combination of Gauss Pseudospectral Method and Genetic Algorithm