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This paper analyzes the problem of timing related common mode failures in redundant systems. The specific case of duplex systems in the presence of delay faults is analyzed by providing a probabilistic characterization of undetectable errors. PDF simulation was used to evaluate the probability of undetectable errors in conventional duplex systems and in duplex systems making use of a simple kind of data diversity.
Online error detection, duplex systems, timing related failures.

M. Favalli, "Diversity Analysis in the Presence of Delay Faults Affecting Duplex Systems," in IEEE Transactions on Computers, vol. 55, no. , pp. 348-352, 2006.
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