CA-CFAR Performance in K-Distributed Sea Clutter With Fully Correlated Texture

被引:0
作者
Medeiros, Diego Silva [1 ]
Garcia, Fernando Dario Almeida [2 ]
Machado, Renato [1 ]
Santos Filho, Jose Candido S. [2 ]
Saotome, Osamu [3 ]
机构
[1] Aeronaut Inst Technol, Dept Telecommun, BR-12228900 Sao Jose Dos Campos, Brazil
[2] Univ Estadual Campinas, Sch Elect & Comp Engn, Dept Commun, Wireless Technol Lab, BR-13083852 Campinas, Brazil
[3] Aeronaut Inst Technol, Dept Appl Elect, BR-12228900 Sao Jose Dos Campos, Brazil
基金
巴西圣保罗研究基金会;
关键词
Clutter; Detectors; Radar; Speckle; Radar clutter; Radar detection; Shape; Cell-averaging constant false-alarm rate (CA-CFAR); K-distributed clutter; probability of detection; probability of false alarm; sea clutter;
D O I
暂无
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Sea clutter has been a long-standing issue in old and modern radars. Under this context, the K-distribution has emerged as a promising clutter model to accurately mimic sea signal variations in a large variety of radar systems. To guarantee an adequate radar performance in the presence of sea clutter, the family of constant false-alarm rate (CFAR) detectors has been commonly used. In particular, due to its adequate balance between performance and implementation, the cell-averaging CFAR (CA-CFAR) detector has been considered an attractive detection mechanism to enhance radar performance over various clutter environments. In this work, we assess radar performance considering a CA-CFAR detector operating over K-distributed sea clutter with fully correlated texture. More precisely, we derive novel closed-form expressions for the probability of detection (PD) and the probability of false alarm ( PFA) that can be readily evaluated using any mathematical software. Monte-Carlo (MC) simulations corroborate our analytical findings.
引用
收藏
页数:5
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