Analyzing Reduced Precision Triple Modular Redundancy under Proton Irradiation
Articles
Overview
published in
publication date
- March 2022
start page
- 470
end page
- 477
issue
- 3
volume
- 69
Digital Object Identifier (DOI)
full text
International Standard Serial Number (ISSN)
- 0018-9499
Electronic International Standard Serial Number (EISSN)
- 1558-1578
abstract
- This work analyzes the performance of the reduced precision redundancy (RPR) error mitigation technique using the fast Fourier transform (FFT) as a case study. To this purpose, several configurations of an FFT IP design were implemented in field-programmable gate array (FPGA) using reduced precision triple modular redundancy (RP-TMR) and tested under proton irradiation and fault injection. The cross section, the sensitivity to common-mode failures (CMFs), and the signal-to-noise ratio of these configurations were evaluated. The results of the radiation experiments and fault injection campaigns are in agreement and show that the RP-TMR technique may be used as an alternative to triple modular redundancy (TMR) if small errors can be tolerated, as it has a good performance in terms of error correction capabilities, area usage, and sensitivity to critical errors.
Classification
subjects
- Electronics
- Nuclear Energy
keywords
- common-mode failures (cmfs); fast fourier transform (fft); reduced precision redundancy (rpr); static random access memory (sram)-based field-programmable gate array (fpga); triple modular redundancy (tmr)