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Integrated Navigation System for the second SHarp Edge Flight EXperiment (SHEFEX-2)

Theil, Stephan and Schlotterer, Markus and Conradt, Michael and Hallmann, Marcus (2008) Integrated Navigation System for the second SHarp Edge Flight EXperiment (SHEFEX-2). In: Proceedings of the 31th Annual AAS Guidance and Control Conference. 31th Annual AAS Guidance and Control Conference, 2008-02-01 - 2008-02-06, Breckenridge, Colorado (USA).

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Abstract

In October 2005 the first experiment of the DLR hypersonic SHarp Edge Flight EXperiment Program was successfully launched at the Andøya Rocket Range in northern Norway with the purpose to investigate possible new shapes for future launcher or re-entry vehicles applying a shape with faceted surfaces and sharp edges. For spring 2010 the execution of the SHEFEX II experiment is planned. It shall focus on hypersonic flight control using steerable canard fins while new thermal-protection system concepts will also be a subject of investigation. The accurate control of the vehicle using the canards requires a high accuracy in knowledge of the angle of attack and the side slip angle. Both angles can only be derived from the flight path and an accurate inertial attitude measurement. The first can be achieved by using GPS measurements. The second can not be provided by an Inertial Navigation System due to the fact that drifts due to launch vibrations are exceeding the requirement. Therefore a star tracker is foreseen to update the attitude information shortly before re-entry. Since the case of SHEFEX II describes a re-entry scenario which is applicable to other re-entry missions the need arises to develop an integrated navigation system which can provide the navigation solution with needed accuracy. This navigation system shall combine the measurements from inertial measurement unit (IMU), GPS receiver and star tracker. A further extension to include other sensors shall be foreseen. The paper will describe the concept of the integrated navigation. A special focus is also laid on the analysis how the star tracker can be integrated into the SHEFEX II probe.

Item URL in elib:https://elib.dlr.de/57208/
Document Type:Conference or Workshop Item (Poster)
Title:Integrated Navigation System for the second SHarp Edge Flight EXperiment (SHEFEX-2)
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Theil, StephanUNSPECIFIEDUNSPECIFIED
Schlotterer, MarkusUNSPECIFIEDUNSPECIFIED
Conradt, MichaelUNSPECIFIEDUNSPECIFIED
Hallmann, MarcusUNSPECIFIEDUNSPECIFIED
Date:February 2008
Journal or Publication Title:Proceedings of the 31th Annual AAS Guidance and Control Conference
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:integrated navigation, inertial navigation, GPS, Kalman Filter, SHEFEX
Event Title:31th Annual AAS Guidance and Control Conference
Event Location:Breckenridge, Colorado (USA)
Event Type:international Conference
Event Dates:2008-02-01 - 2008-02-06
Organizer:AAS
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignment
DLR - Research area:Space
DLR - Program:W - no assignment
DLR - Research theme (Project):W - no assignment (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Regelungs- und Datensysteme
Deposited By: Theil, Dr.-Ing. Stephan
Deposited On:12 Jan 2009
Last Modified:12 Dec 2013 20:35

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