摘要
论文以BELLHOP声线模型作为水声信号在水声信道中的传播模型,对水声信道的相关特性做了研究。首先研究了水声信道中声线的传播损失随深度和距离的变化关系;接着研究了声速剖面对传播路径、海底掠射角、海底反射损失、传播损失随深度的变化和传播损失随距离的变化的影响;最后研究了水声信道的冲击响应特性,并以线性调频信号作为发射的水声信号,研究了水声信号经过水声信道后的接收信号的特性。
This manuscript has investigated underwater acoustic channel properties using the BELLHOP acoustic rays model as the acoustic signals propagating model.Firstly,the impacts of the change of depth and distance on the transmission loss are inves-tigated.Secondly,the influences of sound speed profile on acoustic rays propagating paths,grazing angle,ocean bottom reflection loss and transmission loss change with depth and distance are studied.At last,underwater acoustic channel impulse response is in-vestigated.The linear frequency modulation signal is chosen as the transmitting signal.The received signal properties after the trans-mitting signal passes through the underwater acoustic channel are researched.
作者
代伟
DAI Wei(No.91388 Troops of PLA,Zhanjiang 524022)
出处
《舰船电子工程》
2023年第7期200-204,共5页
Ship Electronic Engineering
关键词
声线模型
传播损失
声速剖面
水声信道冲击响应
线性调频信号
acoustic rays model
transmission loss
sound speed profile
underwater acoustic channel impulse response
lin-ear frequency modulation signal Class Number TB566
