Optimal drag-energy entry guidance via pseudospectral convex optimization

Conference paper (2018)

Authors

Marco Sagliano Deutsches Zentrum für Luft- und Raumfahrt (DLR)
E. Mooij Astrodynamics & Space Missions - Aerospace Engineering
Research Group
Astrodynamics & Space Missions (Aerospace Engineering) (TU Delft)
Copyright: © 2018 Marco Sagliano, E. Mooij
DOI: https://doi.org/10.2514/6.2018-1315
More Info
expand_more

Published Date

2018

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Aerospace Engineering

Department

Space Engineering

Research Group

Astrodynamics & Space Missions

Abstract

In this paper a new drag-energy scheme, based on the use of pseudospectral methods and convex optimization, is proposed. One of the most successful technologies to deal with atmospheric entry is the class of drag-tracking schemes, a direct heritage of the Space Shuttle program. The method that we propose exploits the drag-dynamics, and allows for an effcient automatic design of an optimal entry profile satisfying all the longitudinal constraints acting on the vehicle. A new representation of the entry-guidance problem, able to loss-less convexify the formulation, is provided. Numerical simulations confirm the validity of the proposed scheme as tool for further improving the autonomy of modern entry guidance systems, with a mean final range-to-go error in the order of three hundred meters, and the capability to re-compute a complete constrained trajectory to meet the mission requirements.

Files

Optimal_Drag_Energy_Entry_Guid... (pdf)
(pdf | 1.23 Mb)
- Embargo expired in 01-02-2019
Unknown license