摘要
包络谱是舰船辐射噪声的特征之一,可作为目标识别的重要依据。快速预报海洋信道对包络谱传播的影响,可对目标识别提供帮助。提出并从理论上分析了用射线模型快速预报海洋信道对包络谱影响的方法,利用这种方法计算了几种典型海洋信道中包络谱随接收距离的变化,分析了声速剖面、海底参数、声源和接收深度对包络谱传播的影响。
Demon spectrum is one of the characters of ship radiated noise.It can be used as an important basis in target identification.Target identification could be improved if ocean channel’s effects on Demon spectrum propagation can be forecasted quickly.The method of quickly forecasting the effects of ocean channel on Demon spectrum is proposed and analyzed theoretically.Changes of Demon spectrum verses receiving distance in some typical channels are calculated.Effects of sound profile,waterbed parameters,depth of source and receiver on Demon spectrum propagation are ana-lyzed.
出处
《声学技术》
CSCD
2010年第3期258-263,共6页
Technical Acoustics
关键词
射线模型
海洋信道
包络谱
传播
ray model
ocean channel
Demon spectrum
propagation
作者简介
作者简介：赵春梅（1969-），女，山西平遥人，博士研究生，工程师，研究方向为目标特性与传播。通讯作者：赵春梅．E-mail：zhaochm@263．net
