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Sequential Detection of Transient Changes
Sequential Analysis, 2012Abstract This article addresses the transient change detection problem. It is assumed that a change occurs at an unknown (but nonrandom) change-point and the duration of post-change period is finite and known. A latent detection—that is, a detection that occurs after signal disappearance—is considered as a missed detection.
Blaise Kevin Guépié +2 more
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Adaptive detection of transient signals
IEEE Transactions on Acoustics, Speech, and Signal Processing, 1986The paper discusses the problem of detecting transient signals of unknown waveforms in white Gaussian noise. The signals are modeled as impulse responses of rational transfer functions with unknown parameters. A generalized likelihood ratio test (GLRT) is proposed and its statistical properties are analyzed.
Boaz Porat, Benjamin Friedlander
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Two Strategies in Transient Change Detection
IEEE Transactions on Signal Processing, 2022The paper addresses the transient change detection (TCD) problem, assuming that the duration of change is finite. The TCD criterion minimizes the worst-case probability of missed detection among all tests with a prescribed worst-case probability of false alarm. We study the fixed sample size (FSS) test as a solution to the TCD problem.
Egea-Roca, Daniel +4 more
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On the probability of detection of a transient signal
1995 International Conference on Acoustics, Speech, and Signal Processing, 2002The performance of Page's (1954) test for the detection of a permanent change in distribution is reasonably well understood. However, there are few parallel results on its application to the detection of a temporary (i.e., transient) change, and this is the paper's subject.
Chunming Han +2 more
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The transient detection microscope
Nature, 1988We describe a microscope that preferentially displays moving objects. This all-optical device operates in real-time using the nonlinear coupling of optical beams in a photorefractive crystal of barium titanate. A holographic image is continuously written and compared with the real image, and any discrepancy between the two images is immediately visible.
R. S. Cudney +2 more
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SPIE Proceedings, 2005
When one calculates a time-frequency distribution of white noise there sometimes appear transients of short duration. Superficially, these transients appear to be real signals but they are not. This comes about by random chance in the noise and also because particular types of distributions do not resolve components well in time.
GALLEANI, Lorenzo, COHEN L, NELSON D.
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When one calculates a time-frequency distribution of white noise there sometimes appear transients of short duration. Superficially, these transients appear to be real signals but they are not. This comes about by random chance in the noise and also because particular types of distributions do not resolve components well in time.
GALLEANI, Lorenzo, COHEN L, NELSON D.
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Multiresolution transient detection
Proceedings of IEEE-SP International Symposium on Time- Frequency and Time-Scale Analysis, 2002Designs and studies the performance of a multiresolution-based transient detector. The transients the authors are interested in consist of wide-band, pulse-like, coherent structures in a turbulent flow. To take advantage of the fast pyramidal wavelet algorithm, an important point when processing large amounts of experimental data, the detector makes ...
P. Abry, P. Flandrin
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Transient Fault Detection in State-Automata
2nd International Conference on Dependability of Computer Systems (DepCoS-RELCOMEX '07), 2007State automata are implemented in numerous ways and technologies - from simple traffic light controls to high-performance microprocessors comprising thousands of different states. Highly-integrated microprocessors get more and more susceptible to transient faults induced by radiation, extreme clocking, temperature and decreasing voltage supplies.
Bernhard Fechner, Andre Osterloh
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Detection of Transient Signals With Unknown Localization
IEEE Signal Processing Letters, 2004In the context of real-time detection of transient signals, a likelihood ratio (LR) test is evaluated at every sampling interval. Performing the LR tests at a lower rate reduces significantly the computational complexity of the detection algorithm. However, in general, this simplification also leads to a strong degradation of the detector performance ...
Francisco M. Garcia +1 more
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