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ReFEx: Reusability Flight Experiment - Architecture and Algorithmic Design of the GNC Subsystem

Redondo Gutierrez, Jose Luis and Seelbinder, David and Theil, Stephan and Bernal Polo, Pablo and Gäßler, Björn and Robens, Johannes and Acquatella B., Paul (2023) ReFEx: Reusability Flight Experiment - Architecture and Algorithmic Design of the GNC Subsystem. Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS, 2023-07-09 - 2023-07-13, Lausanne, Switzerland.

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The German Aerospace Center (DLR) "Reusability Flight Experiment" (ReFEx) aims to demonstrate the Guidance, Navigation, and Control (GNC) capabilities for an aerodynamically controlled Reusable Launch Vehicle (RLV) stage. The GNC subsystem is responsible for maintaining stability and steering the vehicle to achieve a target state, specifically transitioning from the supersonic to subsonic flight regime. This objective is accomplished through: 1) planning and updating a feasible trajectory from separation up to the target state (Guidance); 2) estimation of the vehicle’s current state by leveraging sensor measurements (Navigation); and 3) tracking the guidance’s attitude commands while maintaining vehicle’s stability using the actuators (Control). This paper provides a comprehensive overview of the algorithms employed within these modules, their integration into the GNC architecture, and an evaluation of their performance. The results demonstrate that the GNC algorithms meet the requirements, while acknowledging the need for further improvements in the accuracy of the navigation solution. By showcasing the GNC capabilities of the ReFEx project, this research contributes to advancing the field of aerodynamic control for RLV stages.

Item URL in elib:https://elib.dlr.de/196905/
Document Type:Conference or Workshop Item (Speech)
Title:ReFEx: Reusability Flight Experiment - Architecture and Algorithmic Design of the GNC Subsystem
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Redondo Gutierrez, Jose LuisUNSPECIFIEDhttps://orcid.org/0000-0002-0037-2299UNSPECIFIED
Theil, StephanUNSPECIFIEDhttps://orcid.org/0000-0002-5346-8091142534395
Robens, JohannesUNSPECIFIEDhttps://orcid.org/0009-0000-3197-4973UNSPECIFIED
Acquatella B., PaulUNSPECIFIEDhttps://orcid.org/0000-0002-0826-6984UNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:GNC, Reusable Launcher
Event Title:Aerospace Europe Conference 2023 - 10th EUCASS - 9th CEAS
Event Location:Lausanne, Switzerland
Event Type:international Conference
Event Start Date:9 July 2023
Event End Date:13 July 2023
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Project ReFEx - Reusability Flight Experiment
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Navigation and Control Systems
Institute of System Dynamics and Control > Space System Dynamics
Deposited By: Redondo Gutierrez, Jose Luis
Deposited On:18 Sep 2023 09:12
Last Modified:24 Apr 2024 20:57

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