High-precision shape approximation low-thrust trajectory optimization method satisfying bi-objective index

Low-Thrust, High-Accuracy Trajectory Optimization

Multirevolution, very low-thrust trajectory optimization problems have long been considered difficult problems due to their large time scales and high-frequency responses. By relating this difficulty to the well-known problem of aliasing in information theory, an antialiasing trajectory optimization method is developed. The method is based on Bellman’s principle of optimality and is extremely s...

Low - Thrust Trajectory Optimization Using Stochastic Optimization Methods

Low-thrust Trajectory Optimization with Simplified Sqp Algorithm

The problem of low-thrust trajectory optimization in highly perturbed dynamics is a stressing case for many optimization tools. Highly nonlinear dynamics and continuous thrust are each, separately, non-trivial problems in the field of optimal control, and when combined, the problem is even more difficult. This paper describes a fast, robust method to design a trajectory in the CRTBP (circular r...

Multi-Objective Evolutionary Algorithms for Low-Thrust Orbit Transfer Optimization

We address the problem of optimizing a spacecraft trajectory by using three different multi-objective evolutionary algorithms: i) Non-dominated sorting genetic algorithm, ii) Pareto-based ranking genetic algorithm, and iii) Strength Pareto genetic algorithm. The trajectory of interest is an orbit transfer around a central body when the spacecraft uses a lowthrust propulsion system. We use a Lya...

Global Low-Thrust Trajectory Optimization through Hybridization of a Genetic Algorithm and a Direct Method

To expand mission capabilities needed for exploration of the Solar System, optimal lowthrust trajectories must be found. However, low-thrust, multiple gravity-assist trajectories pose significant optimization challenges because of their expansive, multimodal design space. Here, a novel technique is developed for global, low-thrust, interplanetary trajectory optimization through the hybridizatio...