Simplified fault-tolerant FIR filter architecture based on redundant residue number system

Zhibin Luan; Xiang Chen; Ning Ge; Zhaocheng Wang

Simplified fault-tolerant FIR filter architecture based on redundant residue number system

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Author(s): Zhibin Luan ¹ ; Xiang Chen ¹ ; Ning Ge ¹ ; Zhaocheng Wang ¹
- Affiliations: 1: Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing, People's Republic of China
Source: Volume 50, Issue 23, 06 November 2014, p. 1768 – 1770
DOI: 10.1049/el.2014.3508 , Print ISSN 0013-5194, Online ISSN 1350-911X

Received 29/09/2014, Published 28/10/2014

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.

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Simplified fault-tolerant FIR filter architecture based on redundant residue number system

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