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Attitude identification for SCOLE using two infrared camerasAn algorithm is presented that incorporates real time data from two infrared cameras and computes the attitude parameters of the Spacecraft COntrol Lab Experiment (SCOLE), a lab apparatus representing an offset feed antenna attached to the Space Shuttle by a flexible mast. The algorithm uses camera position data of three miniature light emitting diodes (LEDs), mounted on the SCOLE platform, permitting arbitrary camera placement and an on-line attitude extraction. The continuous nature of the algorithm allows identification of the placement of the two cameras with respect to some initial position of the three reference LEDs, followed by on-line six degrees of freedom attitude tracking, regardless of the attitude time history. A description is provided of the algorithm in the camera identification mode as well as the mode of target tracking. Experimental data from a reduced size SCOLE-like lab model, reflecting the performance of the camera identification and the tracking processes, are presented. Computer code for camera placement identification and SCOLE attitude tracking is listed.
Document ID
19920002120
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Shenhar, Joram (Lockheed Engineering and Sciences Co. Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
October 1, 1991
Publication Information
Publisher: NASA
Subject Category
Instrumentation And Photography
Report/Patent Number
NAS 1.26:4397
NASA-CR-4397
Accession Number
92N11338
Funding Number(s)
PROJECT: RTOP 506-59-61-01
CONTRACT_GRANT: NAS1-19000
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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