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Author: G. R. Redinbo
Publisher:
ISBN:
Category :
Languages : en
Pages : 2
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Book Description
New fault-tolerant architectures are investigated to protect modern VLSI implementations against soft errors, internal momentary errors, random in both time and space, characterized by their short and infrequent nature. Work has progressed on both recursive and nonrecursive digital filters. One approach in the recursive case uses many parallel sections, each employing distinct finite field arithmetic and protected by powerful cyclic codes distributed throughout the realization. These results are easily extended to the signal processing aspects of other important systems such as protecting and speeding the operations in cyclic error-correcting code decoders. In another direction, convolutions between data arrays can be protected with cyclic codes defined over the real rings and fields commonly used in arithmetic units. On the other hand, recursive realizations can be made fault-tolerant by embedding convolutional error-correcting codes, defined over either real or complex fields or finite integer rings, directly with the filter weighting. This is a natural integration since both the filtering operations and those generating the convolutional codes are essentially the same once the time-varying nature of the code structure is properly located. The impact of fault tolerance on system overhead is being analyzed, and the advantages of interacting with existing test subsystems, such as scan designs and built-in self-test, are being evaluated.
Author: G. R. Redinbo
Publisher:
ISBN:
Category :
Languages : en
Pages : 2
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Book Description
New fault-tolerant architectures are investigated to protect modern VLSI implementations against soft errors, internal momentary errors, random in both time and space, characterized by their short and infrequent nature. Work has progressed on both recursive and nonrecursive digital filters. One approach in the recursive case uses many parallel sections, each employing distinct finite field arithmetic and protected by powerful cyclic codes distributed throughout the realization. These results are easily extended to the signal processing aspects of other important systems such as protecting and speeding the operations in cyclic error-correcting code decoders. In another direction, convolutions between data arrays can be protected with cyclic codes defined over the real rings and fields commonly used in arithmetic units. On the other hand, recursive realizations can be made fault-tolerant by embedding convolutional error-correcting codes, defined over either real or complex fields or finite integer rings, directly with the filter weighting. This is a natural integration since both the filtering operations and those generating the convolutional codes are essentially the same once the time-varying nature of the code structure is properly located. The impact of fault tolerance on system overhead is being analyzed, and the advantages of interacting with existing test subsystems, such as scan designs and built-in self-test, are being evaluated.
Author: G. R. Redinbo
Publisher:
ISBN:
Category :
Languages : en
Pages : 98
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Book Description
Finite field arithmetic may be efficiently applied for implementing signal processing architectures. The fundamental theoretical work in this area was done by Matluk and Gill. This report presents several new approaches for incorporating error-correcting codes with signal processing operations yielding fault tolerant systems. Fault tolerant levels can be distributed throughout the system's architecture. Such architectures will become necessary when very sophisticated and dense systems are implemented with Very Large Scale Integration.
Author: Michael Butler
Publisher: Springer
ISBN: 3642008674
Category : Computers
Languages : en
Pages : 350
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Book Description
The growing complexity of modern software systems increases the di?culty of ensuring the overall dependability of software-intensive systems. Complexity of environments, in which systems operate, high dependability requirements that systems have to meet, as well as the complexity of infrastructures on which they rely make system design a true engineering challenge. Mastering system complexity requires design techniques that support clear thinking and rigorous validation and veri?cation. Formal design methods help to achieve this. Coping with complexity also requires architectures that are t- erant of faults and of unpredictable changes in environment. This issue can be addressed by fault-tolerant design techniques. Therefore, there is a clear need of methods enabling rigorous modelling and development of complex fault-tolerant systems. This bookaddressessuchacuteissues indevelopingfault-tolerantsystemsas: – Veri?cation and re?nement of fault-tolerant systems – Integrated approaches to developing fault-tolerant systems – Formal foundations for error detection, error recovery, exception and fault handling – Abstractions, styles and patterns for rigorousdevelopment of fault tolerance – Fault-tolerant software architectures – Development and application of tools supporting rigorous design of depe- able systems – Integrated platforms for developing dependable systems – Rigorous approaches to speci?cation and design of fault tolerance in novel computing systems TheeditorsofthisbookwereinvolvedintheEU(FP-6)projectRODIN(R- orous Open Development Environment for Complex Systems), which brought together researchers from the fault tolerance and formal methods communi- 1 ties. In 2007 RODIN organized the MeMoT workshop held in conjunction with the Integrated Formal Methods 2007 Conference at Oxford University.
Author: Liangkung Lin
Publisher:
ISBN:
Category :
Languages : en
Pages : 208
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Book Description
Author: Mogens Blanke
Publisher: Springer
ISBN: 3662479435
Category : Technology & Engineering
Languages : en
Pages : 701
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Book Description
Fault-tolerant control aims at a gradual shutdown response in automated systems when faults occur. It satisfies the industrial demand for enhanced availability and safety, in contrast to traditional reactions to faults, which bring about sudden shutdowns and loss of availability. The book presents effective model-based analysis and design methods for fault diagnosis and fault-tolerant control. Architectural and structural models are used to analyse the propagation of the fault through the process, to test the fault detectability and to find the redundancies in the process that can be used to ensure fault tolerance. It also introduces design methods suitable for diagnostic systems and fault-tolerant controllers for continuous processes that are described by analytical models of discrete-event systems represented by automata. The book is suitable for engineering students, engineers in industry and researchers who wish to get an overview of the variety of approaches to process diagnosis and fault-tolerant control. The authors have extensive teaching experience with graduate and PhD students, as well as with industrial experts. Parts of this book have been used in courses for this audience. The authors give a comprehensive introduction to the main ideas of diagnosis and fault-tolerant control and present some of their most recent research achievements obtained together with their research groups in a close cooperation with European research projects. The third edition resulted from a major re-structuring and re-writing of the former edition, which has been used for a decade by numerous research groups. New material includes distributed diagnosis of continuous and discrete-event systems, methods for reconfigurability analysis, and extensions of the structural methods towards fault-tolerant control. The bibliographical notes at the end of all chapters have been up-dated. The chapters end with exercises to be used in lectures.
Author: Michel Banatre
Publisher: Springer Science & Business Media
ISBN: 9783540577676
Category : Computers
Languages : en
Pages : 332
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Book Description
Fault tolerance has been an active research area for many years. This volume presents papers from a workshop held in 1993 where a small number of key researchers and practitioners in the area met to discuss the experiences of industrial practitioners, to provide a perspective on the state of the art of fault tolerance research, to determine whether the subject is becoming mature, and to learn from the experiences so far in order to identify what might be important research topics for the coming years. The workshop provided a more intimate environment for discussions and presentations than usual at conferences. The papers in the volume were presented at the workshop, then updated and revised to reflect what was learned at the workshop.
Author: G. G. L. Meyer
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
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Book Description
We analyze the effects of hardware faults on the performance of computer-implemented signal detectors, as measured by the probability of detection and the probability of false alarm. We then use these results to design fault-tolerant detectors using hardware redundancy. Keywords include. Fault tolerance, Signal Processing, and Parallel Architecture.
Author: Per Gunningberg
Publisher:
ISBN:
Category : Computer network protocols
Languages : en
Pages : 138
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Book Description
Author: Mogens Blanke
Publisher: Springer Science & Business Media
ISBN: 3540356533
Category : Science
Languages : en
Pages : 685
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Book Description
This book presents model-based analysis and design methods for fault diagnosis and fault-tolerant control. Architectural and structural models are used to analyse the propagation of the fault through the process, test fault detectability and reveal redundancies that can be used to ensure fault tolerance. Case studies demonstrate the methods presented. The second edition includes new material on reconfigurable control, diagnosis of nonlinear systems, and remote diagnosis, plus new examples and updated bibliography.
Author: Michael Butler
Publisher: Springer
ISBN: 3540482679
Category : Computers
Languages : en
Pages : 413
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Book Description
This book brings together 19 papers focusing on the application of rigorous design techniques to the development of fault-tolerant, software-based systems. It is an outcome of the REFT 2005 Workshop on Rigorous Engineering of Fault-Tolerant Systems held in conjunction with the Formal Methods 2005 conference at Newcastle upon Tyne, UK, in July 2005.
