Frequency correlation and group time delay of ambient noise and ship radiated-noise in the sea 期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Frequency correlation and group time delay of ambient noise and ship radiated-noise in the sea

摘要：	I.IntroductionTheambientnoiseintheseaisthenoisebackgroundforsonarsignaldetection.Ontheotherhand,theambientnoiseistheuscfu1signa1forextractingtheoceanenvironmenta1parametersbecausethereisagreatdealofinformationonoceanenvironmcntinambientnoise.Theshipradiated-noiscofothershipsistheusefulsignalforpassivesonardetectionwhereastheshipselfnoiseisthenoisebackground.Variouskindsofsignalprocessingmeth-odsessentia1lyutilizethediffcrencesofcharactCristicsbctweensignalandnoisebackgroundtoextractuscfulinfo…
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