Title :
Underwater acoustic target recognition based on multi-timeslice demodulation line spectrum feature
Author :
Shi, Guangzhi ; Hu, Junchuan ; Han, Mei ; Li, Yuyang
Author_Institution :
Dept. of Navig. & Commun., Navy Submarine Acad., Qingdao
Abstract :
The underwater acoustic target recognition based on multi-timeslice demodulation line spectrum feature of radiated-noise is researched. Firstly, the multi-timeslice demodulation line spectrum feature is obtained from the multi-timeslice demodulation spectrum. Secondly, the evaluation method of multi-timeslice demodulation spectrum confusion degree is put forward by using the information entropy. Thirdly, the multi-timeslice target recognition method based on multi-timeslice demodulation line spectrum is researched by using the information entropy evaluation criterion. The comparative result shows that the multi-timeslice target recognition could improve effectively recognition rate of underwater acoustic target.
Keywords :
acoustic signal processing; demodulation; entropy; underwater sound; information entropy evaluation criterion; multi-timeslice demodulation line spectrum feature; underwater acoustic target recognition; Acoustic noise; Demodulation; Frequency; Information entropy; Propellers; Support vector machine classification; Support vector machines; Target recognition; Underwater acoustics; Underwater vehicles;
Conference_Titel :
Information and Automation, 2008. ICIA 2008. International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-2183-1
Electronic_ISBN :
978-1-4244-2184-8
DOI :
10.1109/ICINFA.2008.4608114
