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Reduced-Precision Redundancy for Reliable FPGA Communications Systems in High-Radiation Environments

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4 Author(s)
Pratt, B. ; Commun. Syst. - West, L-3 Commun., Salt Lake City, UT, USA ; Fuller, M. ; Rice, M. ; Wirthlin, M.

Triple modular redundancy (TMR) is the traditional mitigation technique for field-programmable gate arrays (FPGAs) subject to single-event upsets (SEUs) in high-radiation environments. Reduced-precision redundancy (RPR) as an alternative to TMR for communications systems is demonstrated. RPR reduces the number of "catastrophic" SEUs in several simple communications receivers by over 95%, thus increasing the mean time to failure (MTTF) by 25 to 99 times, while consuming less than half of the resources that TMR does in most cases.

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Aerospace and Electronic Systems, IEEE Transactions on  (Volume:49 ,  Issue: 1 )