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Two self-test methods applied to an inertial system problemThe paper describes two self-test procedures applied to the problem of estimating the biases in accelerometers and gyroscopes on an inertial platform. The first technique is the weighted sum-squared residual (WSSR) test, with which accelerator bias jumps are easily isolated, but gyro bias jumps are difficult to isolate. The WSSR method does not take full advantage of the knowledge of system dynamics. The other technique is a multiple hypothesis method developed by Buxbaum and Haddad (1969). It has the advantage of directly providing jump isolation information, but suffers from computational problems. It might be possible to use the WSSR to detect state jumps and then switch to the BH system for jump isolation and estimate compensation.
Document ID
19750063123
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Willsky, A. S.
(MIT Cambridge, Mass., United States)
Deyst, J. J.
(Charles Stark Draper Laboratory, Inc. Cambridge, Mass., United States)
Crawford, B. S.
(Analytic Sciences Corp. Reading, Mass., United States)
Date Acquired
August 8, 2013
Publication Date
July 1, 1975
Publication Information
Publication: Journal of Spacecraft and Rockets
Volume: 12
Subject Category
Instrumentation And Photography
Accession Number
75A47195
Funding Number(s)
CONTRACT_GRANT: F04701-72-C-0377
CONTRACT_GRANT: NGL-22-009-124
Distribution Limits
Public
Copyright
Other

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