Results 221 to 230 of about 23,927 (265)

Fault Identification Using Wavelet Transform

2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific, 2005
This paper presents wavelet analysis technique for identification of faults in high voltage direct current power transmission systems and A.C current systems. The analysis for fast identification of fault is evaluated based on the representation of the travelling waves through wavelet modulus maxima.
K. Rajesh, N. Yadaiah
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Identification of redundant faults.

2009
This thesis presents a redundancy identification (RI) method, namely, the Improved Structure Based (ISB) method, which identifies redundant faults in logic circuits. Redundant faults are those faults that are found not detectable by any test pattern in the process of automatic test pattern generation (ATPG) because they do not affect the normal circuit
openaire   +2 more sources

On-Line Rotor Fault Identification

Noise & Vibration Worldwide, 2004
The dynamics and diagnostics of rotor with faults have been gaining importance in recent years. In the present study a model-based method is proposed for the on-line identification of faults in a rotor. The fault-induced change of the rotor system is taken into account by equivalent loads in the mathematical model.
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Fault identification using competitive learning

10th International Congress of the Brazilian Geophysical Society, 2007
Manual fault mapping from 3D seismic data is a timeconsuming task. A plethora of seismic attributes have been proposed to enhance the discontinuity measures associated with the faults. However, some features in the attribute data make extraction of the fault surfaces as separate objects difficult.
Marcos Machado, Marcelo Gattass
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On-line identification of faults in fault-tolerant imagers

20th IEEE International Symposium on Defect and Fault Tolerance in VLSI Systems (DFT'05), 2006
Detection of defective pixels that develop on-line is a vital part of fault tolerant schemes for repairing imagers during operation. This paper presents a new algorithm for the identification of stuck low, stuck high and partially stuck pixels in both regular and fault tolerant APS systems.
G.H. Chapman, I. Koren, Z. Koren, J. Dudas, C. Jung   +4 more
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Identification of robust untestable path delay faults

Proceedings of the Fourth Asian Test Symposium, 1997
This paper presents a theoretical analysis to identify robust untestable path delay faults. It first classifies the path reconvergence of fanouts into seven cases and deduces the necessary conditions to robustly test path delay faults for each case. It then proposes a procedure, based on the deduced conditions, to identify the robust untestable path ...
Wen Ching Wu, Chung Len Lee, Jwu E. Chen
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System Identification for Fault Diagnosis

2003
The problem of identifying an unknown system given samples of its behaviour is well-known [Soderstrom and Stoica, 1987, Kaiman, 1990, Ljung, 1999] to be ill-posed in the sense of Hadamard [Hadamard, 1964], as its solution is neither unique nor depends continuously on the given data.
Silvio Simani, Cesare Fantuzzi, Ronald Jon Patton   +2 more
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Crash faults identification in wireless sensor networks

Computer Communications, 2002
In this paper we consider the problem of identifying faulty (crashed) nodes in a wireless sensor network. This problem is of fundamental importance in those applicative scenarios of wireless sensor networks in which battery replacement is feasible. The diagnostic information gathered by operational sensors can be used by an external operator for the ...
CHESSA, STEFANO, Santi P.
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Fault Identification by Passive Testing

2004
In this paper, fault identification in passive testing is investigated. First, the fault detection algorithm and an existing fault identification algorithm in passive testing are introduced. Then, two more efficient fault identification algorithms which can give out fewer possible faults than the existing one are proposed.
X. H. Guo, B. H. Zhao, L. Qian
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Fault Detection, Diagnosis and Identification

1998
In this work we distinguish between two kind of faults: slowly changing and abrupt changing faults. The first often originate from wearing and the latter from a abrupt errors within the process control system. In practice, a supervision system has to deal simultaneously with both types of faults, but here we make a distinction because different methods
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