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Hybrid Navigation System for Spaceplanes, Launch and Re-Entry Vehicles

Theil, Stephan and Steffes, Stephen and Samaan, Malak and Conradt, Michael and Markgraf, Markus and Vanschoenbeek, Inge (2009) Hybrid Navigation System for Spaceplanes, Launch and Re-Entry Vehicles. In: Proceedings of the 16th International Space Planes and Hypersonics Systems and Technologies Conference. AIAA. 16th AIAA/DLR/DGLR International Space Planes and Hypersonic Systems and Technologies Conference, 19. - 22. Okt. 2009, Bremen, Deutschland.

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Abstract

In 2010 the German Aerospace Center (DLR) will conduct the second experiment of the DLR hypersonic SHarp Edge Flight EXperiment Program SHEFEX-2. The purpose is to investigate possible new shapes for future launcher or re-entry vehicles with faceted surfaces and sharp edges and to demonstrate key technologies for re-entry like hypersonic flight control using steerable canard �fins. Accurate control of the vehicle using the canards requires a highly accurate knowledge of the angle of attack and the side slip angle. Both angles can only be derived from the flight path and an attitude measurement. The �first can be achieved using GPS measurements. The second can be provided only by the most accurate Inertial Navigation Systems (INS) because drifts due to launch vibrations exceed the accuracy requirements. Therefore, a star tracker will be used to update the attitude information shortly before entry. The SHEFEX-2 mission describes an entry scenario which is applicable to other entry missions. There is a general need to develop a high accuracy integrated navigation system which can be used for multiple missions. This navigation system should combine the measurements from an inertial measurement unit (IMU), GPS receiver and star tracker with the option to include additional sensors. This paper will describe the concept of the integrated navigation system with a focus on integrating the star tracker into the SHEFEX-2 experiment.

Document Type:Conference or Workshop Item (Paper)
Title:Hybrid Navigation System for Spaceplanes, Launch and Re-Entry Vehicles
Authors:
AuthorsInstitution or Email of Authors
Theil, StephanUNSPECIFIED
Steffes, StephenUNSPECIFIED
Samaan, MalakUNSPECIFIED
Conradt, MichaelUNSPECIFIED
Markgraf, MarkusUNSPECIFIED
Vanschoenbeek, IngeUNSPECIFIED
Date:21 October 2009
Journal or Publication Title:Proceedings of the 16th International Space Planes and Hypersonics Systems and Technologies Conference
Refereed publication:No
In ISI Web of Science:No
Publisher:AIAA
Status:Published
Keywords:hybrid navigation, Kalman Filter, inertial navigation, star tracker, star sensor
Event Title:16th AIAA/DLR/DGLR International Space Planes and Hypersonic Systems and Technologies Conference
Event Location:Bremen, Deutschland
Event Type:international Conference
Event Dates:19. - 22. Okt. 2009
Organizer:AIAA, DGLR, DLR
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - SHEFEX Programm (old)
Location: Bremen
Institutes and Institutions:Space Operations and Astronaut Training > GSOC-German Space Operations Center
Institute of Space Systems > Regelungs- und Datensysteme
Deposited By: Dr.-Ing. Stephan Theil
Deposited On:01 Dec 2009 13:15
Last Modified:12 Dec 2013 20:45

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