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A General CA-CFAR Performance Analysis for Weibull-Distributed Clutter Environments

delete2022-01-01
delete11
PRE
AI
L
Lenin Patricio Jiménez Jiménez *
F
Fernando Darío Almeida García
M
Maria Cecilia Luna Alvarado
G
Gustavo Fraidenraich
E
Eduardo Rodrigues de Lima
DOI:10.1109/LGRS.2022.3187554delete
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摘要

摘要

En 中文
In this letter, we provide a general cell-averaging constant false alarm rate (CA-CFAR) performance analysis considering homogeneous Weibull-distributed clutter environments. To do so, we provide generalized expressions for the probability of detection (PD) and probability of false alarm (PFA). Notably, these expressions permit arbitrary values for the shape parameter of the Weibull interference. So far, all CA-CFAR performance analyses were carried out by setting the shape parameter of the Weibull samples within the CFAR window equal to one, which narrows the overall evaluation spectrum. In this study, we allow the shape parameter to take values greater than or equal to one-regime of paramount importance in many practical applications-and still manage to derive manageable and easy-to-implement solutions. All our expressions are confirmed via Monte-Carlo simulations. Numerical results indicate that radar detection is improved as the shape parameter increases.
Keyword:
Clutter
Detectors
Shape
Radar
Weibull distribution
Synthetic aperture radar
Radar detection
Cell-averaging constant false alarm rate (CA-CFAR)
probability of detection (PD)
probability of false alarm (PFA)
radar detection
Weibull clutter

期刊

IEEE Geoscience and Remote Sensing Magazine 封面图
IEEE Geoscience and Remote Sensing Magazine
IF:
16.4
论文数:
1.0W
被引数:
5.1K

机构

U
universidade estadual de campinas
学者数:
3.3W
论文数: 2.3W
被引数: 19
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