Open AccessSimplified fault‐tolerant FIR filter architecture based on redundant residue number system
Author(s) -
Luan Zhibin,
Chen Xiang,
Ge Ning,
Wang Zhaocheng
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2014.3508
Subject(s) - residue number system , finite impulse response , chinese remainder theorem , fault tolerance , digital filter , computer science , soft error , binary number , algorithm , control theory (sociology) , filter (signal processing) , electronic engineering , computer hardware , arithmetic , mathematics , engineering , distributed computing , control (management) , artificial intelligence , computer vision
A low‐cost fault‐tolerant finite impulse response (FIR) filter is presented to save logic resources. Based on the redundant residue number system (RRNS), it eliminates soft errors generated by single event upset (SEU) in space applications, which requires only one three‐moduli set residue to binary converter based on the Chinese remainder theorem. When a soft error happens, only one small‐sized first‐in–first‐out and rollback operations are needed to refresh the FIR filter corrupted by SEU. Theoretical analysis and fault injections are performed to validate that there is no fault missing event. In addition, the proposed scheme can save 21% cell area compared with the conventional RRNS method.