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Target Discrimination Against Clutter Based on Unsupervised Clustering and Sequential Monte Carlo Tracking

abstract: The radar performance of detecting a target and estimating its parameters can deteriorate rapidly in the presence of high clutter. This is because radar measurements due to clutter returns can be falsely detected as if originating from the actual target. Various data association methods and multiple hypothesis filtering approaches have been considered to solve this problem. Such methods, however, can be computationally intensive for real time radar processing. This work proposes a new approach that is based on the unsupervised clustering of target and clutter detections before target tracking using particle filtering. In particular, Gaussian mixture modeling is first used to separate detections into two Gaussian distinct mixtures. Using eigenvector analysis, the eccentricity of the covariance matrices of the Gaussian mixtures are computed and compared to threshold values that are obtained a priori. The thresholding allows only target detections to be used for target tracking. Simulations demonstrate the performance of the new algorithm and compare it with using k-means for clustering instead of Gaussian mixture modeling. / Dissertation/Thesis / Masters Thesis Electrical Engineering 2016

Identiferoai:union.ndltd.org:asu.edu/item:41269
Date January 2016
ContributorsFreeman, Matthew Gregory (Author), Papandreou-Suppappola, Antonia (Advisor), Bliss, Daniel (Advisor), Chakrabarti, Chaitali (Committee member), Arizona State University (Publisher)
Source SetsArizona State University
LanguageEnglish
Detected LanguageEnglish
TypeMasters Thesis
Format62 pages
Rightshttp://rightsstatements.org/vocab/InC/1.0/, All Rights Reserved

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