Search Results - "Kovvali, Narayan"
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An adaptive learning damage estimation method for structural health monitoring
Published in Journal of intelligent material systems and structures (01-01-2015)“…Structural health monitoring is an important problem of interest in many civil infrastructure and aerospace applications. In the last few decades, many…”
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Analysis of wideband forward looking synthetic aperture radar for sensing land mines
Published in Radio science (01-08-2004)“…Signal processing algorithms are considered for the analysis of wideband, forward looking synthetic aperture radar data and for sensing metal and plastic land…”
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A novel probabilistic approach for damage localization and prognosis including temperature compensation
Published in Journal of intelligent material systems and structures (01-03-2016)“…The development of a reliable structural damage prognostics framework, which can accurately predict the fatigue life of critical metallic components subjected…”
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Electrocardiogram Signal Modeling With Adaptive Parameter Estimation Using Sequential Bayesian Methods
Published in IEEE transactions on signal processing (15-05-2014)“…The automatic classification of electrocardiogram (ECG) signals is of great clinical significance in eliminating the strenuous process of manually annotating…”
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Generalized normal window for digital signal processing
Published in 2013 IEEE International Conference on Acoustics, Speech and Signal Processing (01-05-2013)“…The bandwidth and smoothness of windows play an important role in digital signal processing. In applications such as manufacturing process and quality…”
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Conference Proceeding -
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Damage Classification Structural Health Monitoring in Bolted Structures Using Time-frequency Techniques
Published in Journal of intelligent material systems and structures (01-07-2009)“…The analysis, detection, and classification of damage in complex bolted structures is an important component of structural health monitoring. In this article,…”
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Pseudospectral method based on prolate spheroidal wave functions for semiconductor nanodevice simulation
Published in Computer physics communications (15-07-2006)“…We solve Schrödinger's equation for semiconductor nanodevices by applying prolate spheroidal wave functions of order zero as basis functions in the…”
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On the Use of Hidden Markov Modeling and Time-frequency Features for Damage Classification in Composite Structures
Published in Journal of intelligent material systems and structures (01-07-2009)“…A novel approach based on hidden Markov models (HMMs) is proposed for damage classification in composite structures. Time-frequency damage features are first…”
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Waveform selection for range and Doppler estimation via Barankin bound signal-to-noise ratio threshold
Published in 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (01-05-2014)“…In this paper, we consider the tracking of a radar target with unknown range and range rate at low signal-to-noise ratio (SNR). For this nonlinear estimation…”
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Conference Proceeding -
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Multi-source Neural Activity Estimation and Sensor Scheduling: Algorithms and Hardware Implementation
Published in Journal of signal processing systems (01-02-2013)“…Electroencephalography (EEG) and magnetoencephalography (MEG) measurements are used to localize neural activity by solving the electromagnetic inverse problem…”
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Workshop on transitioning structural health monitoring technology to military platforms
Published in Journal of intelligent material systems and structures (01-11-2013)“…Interest in structural health monitoring/management is attracting lots of attention across a spectrum that ranges from sensor developers to end users. The US…”
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Adaptive learning of immunosignaturing features for multi-disease pathologies
Published in 2013 Asilomar Conference on Signals, Systems and Computers (01-11-2013)“…Previously, adaptive learning algorithms have been used with immunosignaturing in order to identify disease states in patients. However, in these algorithms…”
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Conference Proceeding -
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Volumetric fast multipole method for modeling Schrödinger’s equation
Published in Journal of computational physics (10-06-2007)“…A volume integral equation method is presented for solving Schrödinger’s equation for three-dimensional quantum structures. The method is applicable to…”
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A measure of difference between discrete sample sets
Published in 2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR) (01-11-2011)“…The estimation of statistical distance between populations is a task of importance for many applications. Conventional methods often rely on the use of a…”
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Pseudospectral method based on prolate spheroidal wave functions for frequency-domain electromagnetic simulations
Published in IEEE transactions on antennas and propagation (01-12-2005)“…We apply prolate spheroidal wave functions of order zero as basis functions in the pseudospectral method for frequency-domain electromagnetic simulation…”
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Direct algorithm for computation of derivatives of the Daubechies basis functions
Published in Applied mathematics and computation (15-11-2005)“…We extend the direct algorithm for computing the derivatives of the compactly supported Daubechies N-vanishing-moment basis functions. The method yields exact…”
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Electrocardiogram signal modeling using interacting multiple models
Published in 2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR) (01-11-2011)“…The automatic classification of different heart diseases for monitoring cardiac health through the use of dynamic modeling of electrocardiogram (ECG) signals…”
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Conference Proceeding