Title :
Detection of Underwater Target Based on Diagonal Slice of Fourth-Order Cumulant
Author :
He Guangjin ; Cheng Jinfang ; He Xiying ; You Xiudong
Author_Institution :
Dept. of Weaponry Eng., Naval Univ. of Eng., Wuhan, China
Abstract :
Target detection is a key part of underwater acoustic signal detection. The target noise may conclude signals with symmetric distribution, which the third-order statistics are blind to. A fourth-order statistic method is proposed to detect underwater target radiated noises. The detection statistic is based on the diagonal slice of fourth-order cumulant and is applied to detect simulated signal, ship model´s noise and the real ship-radiated noise. The detection performance is compared with that of bispectrum method. The results indicate that the detection method based on fourth-order cumulant is better than that based on bispectrum and has a less computation burden.
Keywords :
acoustic signal detection; underwater acoustic communication; fourth order cumulant; fourth order statistic method; underwater acoustic signal detection; underwater target detection; Detectors; Estimation; Gaussian noise; Higher order statistics; Marine vehicles; Signal to noise ratio;
Conference_Titel :
Intelligent Systems and Applications (ISA), 2011 3rd International Workshop on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-9855-0
Electronic_ISBN :
978-1-4244-9857-4
DOI :
10.1109/ISA.2011.5873271
