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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| Formato: | Online |
| Lenguaje: | eng |
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Universidad de Costa Rica
2015
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/ingenieria/article/view/18209 |
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| _version_ | 1804238517322121216 |
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| author | Machado Fernández, José Raúl |
| author_facet | Machado Fernández, José Raúl |
| author_sort | Machado Fernández, José Raúl |
| collection | Revista Ingeniería (RI) |
| 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. |
| first_indexed | 2024-07-10T23:58:54Z |
| format | Online |
| id | INII-RI-article-18209 |
| institution | Instituto de Investigaciones en Ingeniería (INII) |
| language | eng |
| last_indexed | 2024-07-10T23:58:54Z |
| publishDate | 2015 |
| publisher | Universidad de Costa Rica |
| record_format | ojs |
| spelling | INII-RI-article-182092021-06-09T19:54:45Z ESTIMATION OF THE RELATION BETWEEN WEIBULL SEA CLUTTER AND THE CA-CFAR SCALE FACTOR Machado Fernández, José Raúl sea clutter Weibull distribution CA-CFAR false alarm probability radar targets detection 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. Universidad de Costa Rica 2015-11-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Artículo application/pdf application/x-rar https://revistas.ucr.ac.cr/index.php/ingenieria/article/view/18209 10.15517/jte.v25i2.18209 Ingeniería; Vol. 25 No. 2 (2015): July-December 2015; 19-28 Ingeniería; Vol. 25 Núm. 2 (2015): Julio-Diciembre 2015; 19-28 Ingeniería; Vol. 25 N.º 2 (2015): Julio-Diciembre 2015; 19-28 2215-2652 1409-2441 eng https://revistas.ucr.ac.cr/index.php/ingenieria/article/view/18209/21911 https://revistas.ucr.ac.cr/index.php/ingenieria/article/view/18209/34858 Derechos de autor 2015 Revista Ingeniería - International Journal of Engineering Research |
| spellingShingle | sea clutter Weibull distribution CA-CFAR false alarm probability radar targets detection Machado Fernández, José Raúl ESTIMATION OF THE RELATION BETWEEN WEIBULL SEA CLUTTER AND THE CA-CFAR SCALE FACTOR |
| title | 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_short | 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 |
| topic | sea clutter Weibull distribution CA-CFAR false alarm probability radar targets detection |
| topic_facet | sea clutter Weibull distribution CA-CFAR false alarm probability radar targets detection |
| url | https://revistas.ucr.ac.cr/index.php/ingenieria/article/view/18209 |
| work_keys_str_mv | AT machadofernandezjoseraul estimationoftherelationbetweenweibullseaclutterandthecacfarscalefactor |