Signal Shaping Dual Modular Redundancy for Soft Error Tolerant Finite Impulse Response Filters

Title: Signal Shaping Dual Modular Redundancy for Soft Error Tolerant Finite Impulse Response Filters
Authors: Reviriego, P.
Bleakley, Chris J.
Maestro, J.A.
Permanent link: http://hdl.handle.net/10197/7062
Date: 10-Nov-2011
Abstract: A technique to protect finite impulse response (FIR) filters against soft errors is presented. The approach is based on the use of two copies of the FIR filter. In one of the copies, preprocessing of the input and a postprocessing of the output are added. In the event of a soft error, the outputs of the filters differ or mismatch for one or more samples. The additional processing introduced in the second copy of the filter ensures that the mismatch patterns are unique to each copy. Hence, the copy in error can be identified and the output of the other copy selected as the final error protected filter output. The proposed scheme can efficiently correct isolated soft errors at lower cost than general techniques, such as triple modular redundancy.
Type of material: Journal Article
Publisher: Institute of Engineering and Technology (IET)
Copyright (published version): 2011 The Institution of Engineering and Technology
Keywords: Signal shaping;Dual modular redundancy (DMR);Soft errors
DOI: 10.1049/el.2011.2922
Language: en
Status of Item: Peer reviewed
Appears in Collections:Computer Science Research Collection

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