Computing the set of Epsilon-efficient solutions in multiobjective space mission design [PDF]
, 2011 In this work, we consider multiobjective space mission design problems. We will start from the need, from a practical point of view, to consider in addition to the (Pareto) optimal solutions also nearly optimal ones.
Vasile, Massimiliano +2 more
core +4 more sources
Time-optimal trajectories to circumsolar space using solar electric propulsion [PDF]
, 2013 The aim of this paper is to explore the capabilities of a solar electric propelled spacecraft on a mission towards circumsolar space. Using an indirect approach, the paper investigates minimum time of transfer (direct) trajectories from an initial ...
Vasile, Massimiliano +2 more
core +4 more sources
Optimal trajectory design for interception and deflection of Near Earth Objects [PDF]
, 2010 Many asteroids and comets orbit the inner solar system; among them Near Earth Objects (NEOs) are those celestial bodies for which the orbit lies close, and sometimes crosses, the Earth's orbit.
Colombo, Camilla +2 more
core +3 more sources
Optimal low-thrust trajectories to asteroids through an algorithm based on differential dynamic programming [PDF]
, 2009 In this paper an optimisation algorithm based on Differential Dynamic Programming is applied to the design of rendezvous and fly-by trajectories to near Earth objects. Differential dynamic programming is a successive approximation technique that computes
Colombo, Camilla +2 more
core +4 more sources
A set oriented approach to global optimal control [PDF]
, 2002 We describe an algorithm for computing the value function for 'all source, single destination' discrete-time nonlinear optimal control problems together with approximations of associated globally optimal control strategies.
Oliver Junge +3 more
core +1 more source
Global optimisation of multiple gravity assist trajectories [PDF]
, 2010 Multiple gravity assist (MGA) trajectories represent a particular class of space trajectories in which a spacecraft exploits the encounter with one or more celestial bodies to change its velocity vector; they have been essential to reach high Delta-v ...
Ceriotti, Matteo, Ceriotti, M.
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Preliminary design of multiple gravity-assist trajectories [PDF]
, 2006 In this paper the preliminary design of multiple gravity-assist trajectories is formulated as a global optimization problem. An analysis of the structure of the solution space reveals a strong multimodality, which is strictly dependent on the complexity ...
Vasile, Massimiliano +2 more
core +5 more sources
Greedy systems of linear inequalities and lexicographically optimal solutions [PDF]
, 2019 The present note reveals the role of the concept of greedy system of linear inequalities played in connection with lexicographically optimal solutions on convex polyhedra and discrete convexity. The lexicographically optimal solutions on convex polyhedra
藤重, 悟, Fujishige, Satoru
core +2 more sources
Generating Feasible Trajectories for Autonomous On-Orbit Grasping of Spinning Debris in a Useful Time [PDF]
, 2013 The grasping and stabilization of a spinning, noncooperative target satellite by means of a free-flying robot is addressed. A method for computing feasible robot trajectories for grasping a target with known geometry in a useful time is presented ...
Hirzinger, Gerd +3 more
core +1 more source
Search space pruning and global optimization of multiple gravity assist trajectories with deep space manoeuvers [PDF]
, 2007 This paper deals with the design of optimal multiple gravity assist trajectories with deep space manoeuvres. A pruning method which considers the sequential nature of the problem is presented.
Becerra, Victor M. +4 more
core +4 more sources