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Umut Orguner
E-mail
umut@metu.edu.tr
Department
Department of Electrical and Electronics Engineering
ORCID
0000-0002-7670-5635
Scopus Author ID
6506245711
Web of Science Researcher ID
A-5234-2013
Publications
Theses Advised
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Projects
Decorrelation of Previously Communicated Information for an Interacting Multiple Model Filter
Acar, Duygu; Orguner, Umut (2021-02-01)
In a sensor network compensation of the correlated information caused by previous communication is of utmost interest for distributed estimation. In this article, we investigate an information decorrelation approach that c...
Performance limits for the amplitude estimation of power system harmonics & interharmonics
Altintasi, Cagri; Orguner, Umut; Salor, Ozgul (Institution of Engineering and Technology (IET), 2020-10-01)
In this study, the problem of amplitude estimation of (inter)harmonics is investigated. Specifically performance limits are provided for the accuracy of unbiased amplitude estimation algorithms and for the analysis window ...
Slow moving target detection for airborne radar systems by dynamic programming on SAR images
Gurer, Gorkem; Koc, Sencer; Candan, Çağatay; Orguner, Umut (2019-04-01)
A dynamic programming based approach is proposed to detect slow moving, low reflectivity targets for airborne radar systems. The suggested method utilizes the reflectivity amplitudes of the SAR image, possibly containing m...
Nonlinear Decentralized Data Fusion with Generalized Inverse Covariance Intersection
Noack, Benjamin; Orguner, Umut; Hanebeck, Uwe D. (2019-01-01)
Decentralized data fusion is a challenging task even for linear estimation problems. Nonlinear estimation renders data fusion even more difficult as dependencies among the nonlinear estimates require complicated parameteri...
A TIGHTER BAYESIAN CRAMER-RAO BOUND
Bacharach, Lucien; Fritsche, Carsten; Orguner, Umut; Chaumette, Eric (2019-01-01)
It has been shown lately that any "standard" Bayesian lower bound (BLB) on the mean squared error (MSE) of the Weiss-Weinstein family (WWF) admits a "tighter" form which upper bounds the "standard" form. Applied to the Bay...
Some Inequalities Between Pairs of Marginal and Joint Bayesian Lower Bounds
Bacharach, Lucien; Chaumette, Eric; Fritsche, Carsten; Orguner, Umut (2019-01-01)
In this paper, tightness relations (or inequalities) between Bayesian lower bounds (BLBs) on the mean-squared-error are derived which result from the marginalization of a joint probability density function (pdf) depending ...
Information Decorrelation for an Interacting Multiple Model Filter
Acar, Duygu; Orguner, Umut (2018-07-13)
In a sensor network compensation of the correlated information caused by previous communication is of utmost interest for distributed estimation. In this paper, we investigate different information decorrelation approaches...
A Random Matrix Measurement Update Using Taylor-Series Approximations
Sarıtaş, Elif; Orguner, Umut (2018-07-13)
An approximate extended target tracking (ETT) measurement update is derived for random matrix extent representation with measurement noise. The derived update uses Taylor series approximations. The performance of the propo...
Bobrovsky-Zakai Bound for Filtering, Prediction and Smoothing of Nonlinear Dynamic Systems
Fritsche, Carsten; Orguner, Umut; Gustafsson, Fredrik (2018-07-13)
In this paper, recursive Bobrovsky-Zakai bounds for filtering, prediction and smoothing of nonlinear dynamic systems are presented. The similarities and differences to an existing Bobrovsky-Zakai bound in the literature fo...
MARGINAL BAYESIAN BHATTACHARYYA BOUNDS FOR DISCRETE-TIME FILTERING
Fritsche, Carsten; Orguner, Umut; Özkan, Emre; Gustafsson, Fredrik (2018-04-20)
In this paper, marginal versions of the Bayesian Bhattacharyya lower bound (BBLB), which is a tighter alternative to the classical Bayesian Cramer-Rao bound, for discrete-time filtering are proposed. Expressions for the se...
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