Title :
A machine learning approach to distribution identification in non-Gaussian clutter
Author :
Metcalf, Justin ; Blunt, Shannon ; Himed, Braham
Author_Institution :
Electr. Eng. & Comput. Sci. Dept., Univ. of Kansas, Lawrence, KS, USA
Abstract :
We consider a set of non-linear transformations of order statistics incorporated into a machine learning approach to perform distribution identification from data with low sample support with the ultimate goal of determining the appropriate detection threshold. The set of transformations provide a means with which data may be compared to a library of known clutter distributions. Several common non-Gaussian distributions are discussed and incorporated into the initial implementation of the library. This approach allows for the addition of empirically measured clutter distributions, which may not have a known analytic form. The adaptive threshold estimation reduces the probability of false alarm when non-Gaussian clutter is present.
Keywords :
adaptive estimation; learning (artificial intelligence); radar clutter; radar detection; radar signal processing; statistical distributions; adaptive threshold estimation; appropriate detection threshold; clutter distributions; distribution identification; false alarm probability; machine learning approach; nonGaussian clutter; nonGaussian distributions; nonlinear transformations; order statistics; Clutter; Covariance matrices; Distributed databases; Libraries; Radar; Shape; Vectors;
Conference_Titel :
Radar Conference, 2014 IEEE
Conference_Location :
Cincinnati, OH
Print_ISBN :
978-1-4799-2034-1
DOI :
10.1109/RADAR.2014.6875688