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An Instantaneous Impact Point Guidance for Rocket with Aerodynamics Control

Jung, Ki Wook and Lee, Chang-Hun and Lee, Junseong and Im, Sunghyuck and Lee, Keejoo and Sagliano, Marco and Seelbinder, David (2021) An Instantaneous Impact Point Guidance for Rocket with Aerodynamics Control. In: 21st International Conference on Control, Automation and Systems, ICCAS 2021. The 21st International Conference on Control, Automation and Systems, 12-15 Oct 2021, Jeju, South Korea. doi: 10.23919/ICCAS52745.2021.9649922. ISBN 978-899321521-2. ISSN 1598-7833.

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Official URL: http://2021.iccas.org/


This paper aims to propose a new guidance algorithm for a rocket with aerodynamics control for launch operations, based on the concept of the instantaneous impact point (IIP). In this study, the rocket with aerodynamics control is considered with the purpose of reducing dispersion of the impact point after separation of the rocket for safety reasons. Since a very limited aerodynamic maneuverability is typically allowed for the rocket due to the structural limit, a guidance algorithm producing a huge acceleration demand is not desirable. Based on this aspect, the proposed guidance algorithm is derived directly from the underlying principle of the guidance process: forming the collision geometry towards a target point. To be more specific, the collision-ballistic-trajectory where the instantaneous impact point becomes the target point, and the corresponding heading error are first determined using a rapid ballistic trajectory prediction technique. Here, the trajectory prediction method is based on the partial closed-form solutions of the ballistic trajectory equations considering aerodynamic drag and gravity. And then, the proposed guidance algorithm works to nullify the heading error in a finite time, governed by the optimal error dynamics. The key feature of the proposed guidance algorithm lies in its simple implementation and exact collision geometry nature. Hence, the proposed method allows achieving the collision course with minimal guidance command, and it is a desirable property for the guidance algorithm of the rocket with the aerodynamics control. Finally, numerical simulations are conducted to demonstrate the effectiveness of the proposed guidance algorithms

Item URL in elib:https://elib.dlr.de/185560/
Document Type:Conference or Workshop Item (Lecture)
Title:An Instantaneous Impact Point Guidance for Rocket with Aerodynamics Control
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Sagliano, MarcoUNSPECIFIEDhttps://orcid.org/0000-0003-1026-0693UNSPECIFIED
Seelbinder, DavidUNSPECIFIEDhttps://orcid.org/0000-0003-4080-3169UNSPECIFIED
Journal or Publication Title:21st International Conference on Control, Automation and Systems, ICCAS 2021
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Keywords:Aerodynamic Guidance, Instantaneous Impact Point (IIP) Guidance, Optimal Error Dynamics, Rocket Landing Guidance, Aerodynamic Control
Event Title:The 21st International Conference on Control, Automation and Systems
Event Location:Jeju, South Korea
Event Type:international Conference
Event Dates:12-15 Oct 2021
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Navigation and Control Systems
Deposited By: Sagliano, Marco
Deposited On:09 Mar 2022 10:45
Last Modified:09 Mar 2022 10:45

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