ESTIMATION OF THE RELATION BETWEEN WEIBULL SEA CLUTTER AND THE CA-CFAR SCALE FACTOR

When radars operate in coastal or offshore environments, an undesired signal known as clutter appears as background in the measurements. The CA-CFAR detector is the classic solution for the detection of targets inside clutter, typically using a fixed value for its adjustment factor the entire period...

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Main Author: Machado Fernández, José Raúl
Format: Artículo
Language: Inglés
Published: Universidad de Costa Rica 2015
Online Access: http://revistas.ucr.ac.cr/index.php/ingenieria/article/view/18209
http://hdl.handle.net/10669/24727
id RepoKERWA24727
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spelling RepoKERWA247272017-08-08T18:51:16Z ESTIMATION OF THE RELATION BETWEEN WEIBULL SEA CLUTTER AND THE CA-CFAR SCALE FACTOR Machado Fernández, José Raúl When radars operate in coastal or offshore environments, an undesired signal known as clutter appears as background in the measurements. The CA-CFAR detector is the classic solution for the detection of targets inside clutter, typically using a fixed value for its adjustment factor the entire period of operation. Using MATLAB, the author simulates the CA-CFAR response under amplitude samples from the classical sea clutter Weibull distribution. As a result, a relation between operating conditions (Weibull shape parameter) and the most efficient adjustment factor is obtained for various false alarm probabilities. Thus, the implementation of a new detector that achieves the adaptation to changing environments through the use of a variable adjustment factor is suggested. Note that sea environment is present in most radar scenarios both in military and meteorological applications. 2015-11-06 2016-05-03T15:11:09Z 2016-05-03T15:11:09Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://revistas.ucr.ac.cr/index.php/ingenieria/article/view/18209 10.15517/jte.v25i2.18209 http://hdl.handle.net/10669/24727 eng Copyright (c) 2015 Revista Ingeniería - Engineering Research http://creativecommons.org/licenses/by/4.0 application/pdf Universidad de Costa Rica Journal of Tropical Engineering; Vol 25, No 2 (2015) Revista Ingeniería; Vol 25, No 2 (2015) Ingeniería; Vol 25, No 2 (2015) 2215-2652 1409-2441
institution Universidad de Costa Rica
collection Repositorio KERWA
language Inglés
description When radars operate in coastal or offshore environments, an undesired signal known as clutter appears as background in the measurements. The CA-CFAR detector is the classic solution for the detection of targets inside clutter, typically using a fixed value for its adjustment factor the entire period of operation. Using MATLAB, the author simulates the CA-CFAR response under amplitude samples from the classical sea clutter Weibull distribution. As a result, a relation between operating conditions (Weibull shape parameter) and the most efficient adjustment factor is obtained for various false alarm probabilities. Thus, the implementation of a new detector that achieves the adaptation to changing environments through the use of a variable adjustment factor is suggested. Note that sea environment is present in most radar scenarios both in military and meteorological applications.
format Artículo
author Machado Fernández, José Raúl
spellingShingle Machado Fernández, José Raúl
ESTIMATION OF THE RELATION BETWEEN WEIBULL SEA CLUTTER AND THE CA-CFAR SCALE FACTOR
author_sort Machado Fernández, José Raúl
title ESTIMATION OF THE RELATION BETWEEN WEIBULL SEA CLUTTER AND THE CA-CFAR SCALE FACTOR
title_short ESTIMATION OF THE RELATION BETWEEN WEIBULL SEA CLUTTER AND THE CA-CFAR SCALE FACTOR
title_full ESTIMATION OF THE RELATION BETWEEN WEIBULL SEA CLUTTER AND THE CA-CFAR SCALE FACTOR
title_fullStr ESTIMATION OF THE RELATION BETWEEN WEIBULL SEA CLUTTER AND THE CA-CFAR SCALE FACTOR
title_full_unstemmed ESTIMATION OF THE RELATION BETWEEN WEIBULL SEA CLUTTER AND THE CA-CFAR SCALE FACTOR
title_sort estimation of the relation between weibull sea clutter and the ca-cfar scale factor
publisher Universidad de Costa Rica
publishDate 2015
url http://revistas.ucr.ac.cr/index.php/ingenieria/article/view/18209
http://hdl.handle.net/10669/24727
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score 11.776181