Browsing by Subject "Signal processing"
Now showing items 21-40 of 46
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Conference Object
M-mode state based identification in ultrasound videos of the atherosclerotic carotid plaque
(2010)Monitoring the wall and plaque changes in the carotid artery (CA) can provide useful information for the assessment of the atherosclerotic disease. Using a motion mode (M-mode) image, detailed information may be obtained ...
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Article
Measurement of the lifetime difference between Bs mass eigenstates
(2005)We present measurements of the lifetimes and polarization amplitudes for Bs 0 → J/ψφ and Bd 0 → J/ψK*0 decays. Lifetimes of the heavy and light mass eigenstates in the Bs 0 system are separately measured for the first time ...
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Conference Object
Minimax rate distortion for a class of sources
(2010)This paper deals with rate distortion or source coding with fidelity criterion, in measure spaces, for a class of source distributions. The class of source distributions is described by a relative entropy constraint set ...
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Article
Modeling 2-D AR processes with various regions of support
(2007)We show that there exists a causal 2-D linear process in the nonsymmetric half-plane having the same autocorrelations as a noncausal 2-D linear process in the whole-plane
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Conference Object
New technique for the classification and decomposition of EMG signals
(IEEE, 1995)The shapes and firing rates of motor unit action potentials (MUAPs) in an electromyographic (EMG) signal provide an important source of information for the diagnosis of neuromuscular disorders. In order to extract this ...
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Conference Object
Optimal preprocessing strategies for perfect reconstruction of binary signals under power-constrained transmission
(2004)In this paper we further explore our deterministic worst-case framework for perfect reconstruction of discrete data transmissions through dispersive communication channels. Specifically, we are concerned with perfect ...
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Conference Object
Optimum immigration policies based on linear quadratic theory
(2010)In this paper, it is demonstrated that the Theory of Linear Quadratic is applicable in deriving optimum immigration policies, while maintaining population and immigration levels close to certain pre-specified reference ...
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Doctoral Thesis Open Access
Outage and ergodic capacity for a class of channels
(Πανεπιστήμιο Κύπρου, Πολυτεχνική Σχολή / University of Cyprus, Faculty of Engineering, 2013-04)Η χρήση πολλαπλών κεραιών τόσο στον πομπό όσο και στον δέκτη σε ασύρματα συστήματα (ΜΙΜΟ) αποτελεί μια πολύ ενεργή ερευνητική περιοχή τα τελευταία χρόνια λόγω των εξαιρετικών βελτιώσεων στην επίδοση σε σύγκριση με τα ...
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Conference Object
Outage capacity and probability for a class of MIMO channels
(2010)This paper is concerned with outage capacity and probability of Multiple-Input Multiple-Output (MIMO) systems for a class of channel distributions. The results illustrate how outage probability and capacity degrade as a ...
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Article
Outage probability under channel distribution uncertainty
(2012)Outage probability and capacity of a class of block-fading MIMO channels are considered under partial channel distribution information. Specifically, the channel or its distribution is not known but the latter is known to ...
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Article
Probabilistic approaches to fault detection in networked discrete event systems
(2005)In this paper, we consider distributed systems that can be modeled as finite state machines with known behavior under fault-free conditions, and we study the detection of a general class of faults that manifest themselves ...
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Doctoral Thesis
Reasoning about systems with evolving structure
(University of Warwick, 1996)
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Conference Object
Robust capacity of a Gaussian noise channel with channel and noise uncertainty
(2005)This paper is concerned with the problem of defining, and computing the capacity of a continuous-time additive Gaussian noise communication channel when the true frequency response of the channel, and the power spectral ...
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Article
Search for excited and exotic electrons in the eγ decay channel in pp̄ collisions at √s= 1.96 TeV
(2005)We present a search for excited and exotic electrons (e*) decaying to an electron and a photon, both with high transverse momentum. We use 202 pb -1 of data collected in pp̄ collisions at √s = 1.96 TeV with the Collider ...
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Article
Search for Kaluza-Klein graviton emission in pp̄ collisions at √s = 1.8 TeV using the missing energy signature
(2004)The results of a search for the direct production of Kaluza-Klein (KK) graviton modes using the rate of events with one or two energetic jets and large ET at the Collider Detector at Fermilab (CFD) were reported. The search ...
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Article
Signal detection in underwater sound using wavelets
(1998)This article considers the use of wavelet methods in relation to a common signal processing problem, that of detecting transient features in sound recordings that contain interference or distortion. In this particular case, ...
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Conference Object
Speckle reduction in ultrasound images of atherosclerotic carotid plaque
(Institute of Electrical and Electronics Engineers Inc., 2002)The objective of this work was to develop six speckle reduction-filtering techniques and evaluate them together with texture analysis in the assessment of 240 ultrasound images of the carotid artery. The de- speckled filters ...
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Article
Spectral estimation
(2010)Wereview spectral analysis and its application in inference for stationary processes. As can be seen from the list of references, the practice of spectral analysis is widespread in diverse scientific and engineering fields, ...
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Article
Stochastic differential equations for modeling, estimation and identification of mobile-to-mobile communication channels
(2009)Mobile-to-mobile networks are characterized by node mobility that makes the propagation environment time varying and subject to fading. As a consequence, the statistical characteristics of the received signal vary continuously, ...
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Article
Structural modification. Part 1: Rotational receptances
(2005)The inverse problem of assigning natural frequencies and antiresonances by a modification to the stiffness, mass and damping of a structure is addressed. Very simple modifications such as the addition of masses and grounded ...