ESTIMATION OF THE RELATION BETWEEN WEIBULL DISTRIBUTED SEA CLUTTER AND THE CA-CFAR SCALE FACTOR
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| Format: | Artículo científico |
| Sprache: | en |
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Universidad de Costa Rica
2015
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| _version_ | 1876456489514696704 |
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| author | José Raúl Machado Fernández |
| author_facet | José Raúl Machado Fernández |
| contents | ESTIMATION OF THE RELATION BETWEEN WEIBULL DISTRIBUTED SEA CLUTTER AND THE CA-CFAR SCALE FACTOR José Raúl Machado Fernández Ingeniería CA CFAR sea clutter Weibull distribution false alarm probability 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 artículo científico 1409-2441 https://www.redalyc.org/articulo.oa?id=44170535002 en http://www.redalyc.org/revista.oa?id=441 Ingeniería. Revista de la Universidad de Costa Rica application/pdf Universidad de Costa Rica Ingeniería. Revista de la Universidad de Costa Rica (Costa Rica) Num.2 Vol.25 |
| format | Artículo científico |
| id | redalyc_44170535002 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Universidad de Costa Rica |
| spellingShingle | ESTIMATION OF THE RELATION BETWEEN WEIBULL DISTRIBUTED SEA CLUTTER AND THE CA-CFAR SCALE FACTOR José Raúl Machado Fernández Ingeniería CA CFAR sea clutter Weibull distribution false alarm probability ESTIMATION OF THE RELATION BETWEEN WEIBULL DISTRIBUTED SEA CLUTTER AND THE CA-CFAR SCALE FACTOR José Raúl Machado Fernández Ingeniería CA CFAR sea clutter Weibull distribution false alarm probability 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 artículo científico 1409-2441 https://www.redalyc.org/articulo.oa?id=44170535002 en http://www.redalyc.org/revista.oa?id=441 Ingeniería. Revista de la Universidad de Costa Rica application/pdf Universidad de Costa Rica Ingeniería. Revista de la Universidad de Costa Rica (Costa Rica) Num.2 Vol.25 |
| title | ESTIMATION OF THE RELATION BETWEEN WEIBULL DISTRIBUTED SEA CLUTTER AND THE CA-CFAR SCALE FACTOR |
| topic | Ingeniería CA CFAR sea clutter Weibull distribution false alarm probability |
| url | https://www.redalyc.org/articulo.oa?id=44170535002 |