Mr. Adam R. Lawman Profile

Adam R. Lawman

at Univ of North Dakota

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Proceedings Article | 22 May 2015 Paper

A suborbital IMU test mission

Adam Lawman, Jeremy Straub, Scott Kerlin

Proceedings Volume 9469, 94690H (2015) https://doi.org/10.1117/12.2177611

KEYWORDS: Global Positioning System, Rockets, Visualization, Space operations, Software development, Document management, Aerospace engineering, Data conversion, Computer science, ITAR

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This paper presents work conducted in preparation for a suborbital test flight to test an inertial measurement unit’s (IMU’s) ability to serve as a position determination mechanism in a GPS-denied environment. Because the IMU could potentially be used at several points during flight, it is not guaranteed that a GPS fix can be used to reset the IMU after the stresses of launch. Due to this, the specific goal of this work is to characterize whether a rocket launch disrupts the IMU-based position knowledge to the extent that it is unusable. This paper discusses preparations for a sub-orbital launch mission to this end. It include a description of the hardware and software used. A discussion of the data logging mechanism and the onboard and post-flight processing which is required to compare the GPS fixes and IMU-generated positions is also presented. Finally, the utility of an IMU capable of maintaining position awareness during launch is discussed.

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