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

作     者：ZHANG Renhe WANG Futang HOU Wenliang and JI shunxin(State Key Laboratory of Acoustics, Chinese Academy of Sciences, Beijing 100080) 

出 版 物：《Chinese Journal of Acoustics》 (声学学报（英文版）)

年 卷 期：1995年第14卷第3期

页      面：276-279页

学科分类：07[理学] 082403[工学-水声工程] 08[工学] 070206[理学-声学] 0824[工学-船舶与海洋工程] 0702[理学-物理学] 

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

摘      要：The characteristics of frequency correlation and group time delay of ambient noise and ship radiated-noise in the sea are studied. The theoretical and experimental results show that the frequency correlation of ship radiated-noise is much greater than that of ambient noise,and the frequency correlation of ship radiated-noise at long distance has obvious group time delay