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Software-Implemented Fault Detection for High-Performance Space Applications

10 years 10 months ago
Software-Implemented Fault Detection for High-Performance Space Applications
We describe and test a software approach to overcoming radiation-induced errors in spaceborne applications running on commercial off-the-shelf components. The approach uses checksum methods to validate results returned by a numerical subroutine operating subject to unpredictable errors in data. We can treat subroutines that return results satisfyinganecessaryconditionhavingalinearform;thechecksum tests compliance with this condition. We discuss the theory and practice of setting numerical tolerances to separate errors caused by a fault from those inherent in finite-precision numerical calculations. We test both the general effectiveness of the linear fault tolerant schemes we propose, and the correct behavior of our parallel implementation of them.
Michael J. Turmon, Robert Granat, Daniel S. Katz
Added 30 Jul 2010
Updated 30 Jul 2010
Type Conference
Year 2000
Where DSN
Authors Michael J. Turmon, Robert Granat, Daniel S. Katz
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