|제목(국문)||이중화 구조를 이용한 비동기 디지털 시스템의 방사선 고장 극복|
|제목(영문)||A New Hardening Technique Against Radiation Faults in Asynchronous Digital Circuits Using Double Modular Redundancy|
곽성우 (Sungwoo Kwak ,계명대학교 전자공학과 ) ▷공저자네트워크등록하기
Asynchronous digital circuits working in military and space environments are often subject to the adverse effects of radiation faults. In this paper, we propose a new hardening technique against radiation faults. The considered digital system has the structure of DMR (Double Modular Redundancy), in which two sub-systems conduct the same work simultaneously. Based on the output feedback, the proposed scheme diagnoses occurrences of radiation faults and realizes immediate recovery to the normal behavior by overriding parts of memoiy bits of the faulty sub-system. As a case study, the proposed control scheme is applied to an asynchronous dual ring counter implemented in VHDL code.
|keyword||asynchronous digital circuits, fault diagnosis and tolerance, radiation faults, DMR (Double Modular Redundancy)