Title :
Distributed fuzzy maximum-censored mean level detector-constant false alarm rate detector based on voting fuzzy fusion rule
Author :
Shufeng Gong ; Minghai Pan ; Weijun Long ; Hao Huang
Author_Institution :
Key Lab. of Radar Imaging & Microwave Photonics, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
In this study, a new distributed fuzzy maximum-censored mean level detector (MX-CMLD) constant false alarm rate (CFAR) detection based on fuzzy space and voting fuzzy fusion rule is presented. In the distributed fuzzy MX-CMLD CFAR detector, each sensor computes the value of the membership function to the false alarm space from the samples of the reference cells and transmits it to the fusion centre. The values are combined according to the voting fuzzy fusion rule and the credibility measure of each sensor to produce a global membership function to the false alarm space in the fusion centre. The simulation results show that the detection performance of the distributed fuzzy MX-CMLD CFAR detector is better than the other fuzzy distributed detectors in homogeneous and non-homogeneous background. Furthermore, the simulation results indicate that the fuzzy algebraic product operator rule gives better performance than the binary AND and the binary OR fusion rules.
Keywords :
algebra; fuzzy set theory; radar signal processing; signal detection; CFAR detection; MX-CMLD; automatic radar target detection; binary AND fusion rules; binary OR fusion rules; constant false alarm rate detector; credibility measure; distributed fuzzy maximum-censored mean level detector; false alarm space; fusion centre; fuzzy algebraic product operator rule; fuzzy space; global membership function; homogeneous background; nonhomogeneous background; reference cells; voting fuzzy fusion rule;
Journal_Title :
Radar, Sonar Navigation, IET
DOI :
10.1049/iet-rsn.2015.0008