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Semi-analytical guidance algorithm for autonomous close approach to non-cooperative low-gravity targets

Lunghi, P, Lavagna, M and Armellin, R (2014) Semi-analytical guidance algorithm for autonomous close approach to non-cooperative low-gravity targets In: 24th AAS/AIAA Space Flight Mechanics Meeting, 2014, 2014-01-26 - 2014-01-30, Santa Fe, U.S.A..

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Abstract

An adaptive guidance algorithm for close approach to and precision landing on uncooperative low-gravity objects (e.g. asteroids) is proposed. The trajectory, updated by means of a minimum fuel optimal control problem solving, is expressed in a polynomial form of minimum order to satisfy a set of boundary constraints from initial and final states and attitude requirements. Optimal guidance computation, achieved with a simple two-stage compass search, is reduced to the determination of three parameters, time-of-flight, initial thrust magnitude and initial thrust angle, according to additional constraints due to actual spacecraft architecture. A NEA landing mission case is analyzed.

Item Type: Conference or Workshop Item (Conference Paper)
Subjects : Electronic Engineering
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
AuthorsEmailORCID
Lunghi, PUNSPECIFIEDUNSPECIFIED
Lavagna, MUNSPECIFIEDUNSPECIFIED
Armellin, RUNSPECIFIEDUNSPECIFIED
Date : 2014
Copyright Disclaimer : Copyright 2014 by AMERICAN ASTRONAUTICAL SOCIETY
Contributors :
ContributionNameEmailORCID
EditorWilson, RSUNSPECIFIEDUNSPECIFIED
EditorZanetti, RUNSPECIFIEDUNSPECIFIED
EditorMackison, DLUNSPECIFIEDUNSPECIFIED
EditorAbdelkhalik, OUNSPECIFIEDUNSPECIFIED
PublisherUnivelt Inc., UNSPECIFIEDUNSPECIFIED
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 05 Dec 2016 11:16
Last Modified : 05 Dec 2016 11:16
URI: http://epubs.surrey.ac.uk/id/eprint/813034

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