Clock jitter has become a problem for integrating IP cores and peripheral devices into a single synchronous SoC. In this paper, we propose an on-chip clock jitter detect circuit to enhance design flexibility, which only consists of twelve transistors and two minor capacitors. The proposed circuit transforms the clock jitter error to deviation of voltage (TVC) but has no use of constant current ...

This paper introduces a novel Markov process formulation of stochastic fault growth modeling, in order to facilitate the development and analysis of prognostics-based control adaptation. A metric representing the relative deviation between the nominal output of a system and the net output that is actually enacted by an implemented prognostics-based control routine, will be used to define the ac...

This paper proposes a new approach for rotating machinery which integrates wavelet transform (WT), principal component analysis (PCA), and artificial neural networks (ANN) to classify the fault and predict the conditions of components, equipment, and machines. The standard deviation of wavelet coefficients are extracted from processed historical signals of manufacturing equipment as features. T...

The high availability and safety requirements for automotive electronics are currently almost exclusively addressed by application-specific engineering solutions to fault tolerance rather than by systematic approaches. Currently, syst e m i c approaches are ruled out because of cost. The reason for this is that a systemic approach to fault tolerance requires ( I ) replication of components and ...

Internal clock synchronization has been investigated, or employed, for quite a number of years, under the requirement of good upper bounds for the deviation, or accuracy, between a predefined master node M and slaves S1, S2, etc. It has been tacitly assumed that the accuracy range between slaves S1 and S2 was just the same as for the master/ slave. In extensive experimental studies of unicast-b...

[1] We compared four interseismic velocity models of the San Andreas Fault based on GPS observations. The standard deviations of the predicted secular velocity from the four models are larger north of the San Francisco Bay area, near the creeping segment in Central California, and along the San Jacinto Fault and the East California Shear Zone in Southern California. A coherence spectrum analysi...

We address the problem of how to integrate faulttolerant internal and external clock synchronization. We propose a new algorithm which provides both external and internal clock synchronization for as long as no more than F reference time servers out of a total of 2F+1 are faulty. When the number of faulty reference time servers exceeds F , the algorithm degrades to a fault-tolerant internal clo...

Automatizing fault localization in programs has been an interesting and active research field for several decades. In order to increase efficiency at least tool support for debugging would be highly required. This holds even more for end-user programs like spreadsheets. In this paper, we discuss three different models for spreadsheet debugging where one relies on qualitative algebra and deviati...

Abstract The accurate identification of the converter transformer magnetizing inrush current can ensure safety operation UHV DC transmission system. In differential protection transformer, it is extremely hard to distinguish between excitation generated when closed and Fault due internal fault, which leads frequent misoperation extent that access fails. This paper proposes a model based on empi...

This paper presents an application of evolution programming (EP), which has no limitation on objective function, for transient stability constrained optimal power flow (TSCOPF) problem. Swing equation and limit of rotor angle deviation with respect to centre of inertia (COI) are treated as additional constraints in transient stability concern. The generator fuel cost minimization is selected as...