Adaptive Hardware and Systems, NASA/ESA Conference on (2008)
June 22, 2008 to June 25, 2008
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/AHS.2008.67
Majority voting is a commonly used approach to increase system reliability. Standard triple-module-redundancy (TMR) methods are frequently used in space applications. Using these methods, triple modules and voting circuits are implemented onto an Application Specific Integrated Circuit (ASIC) or an FPGA. When a single event upset occurs, the voting circuit neglects the failure value of a module receiving the single event upset and takes a correct value of the other two modules not receiving it.However, the triple-module implementation requires a large implementation area on VLSIs. Therefore, to reduce the area of TMR implementation, this paper presents a novel double or triple module redundancy (DTMR) method for dynamically reconfigurable devices using a design example of a state machine. Furthermore, this paper presents experimental results of the method using a highly reliable optically reconfigurable gate array.
M. Watanabe and K. Shinohara, "A Double or Triple Module Redundancy Model Exploiting Dynamic Reconfigurations," Adaptive Hardware and Systems, NASA/ESA Conference on(AHS), vol. 00, no. , pp. 114-121, 2008.