| 利用射线模型快速预报海洋信道对包络谱的影响 |
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| 引用本文： | 赵春梅,徐江,宋俊.利用射线模型快速预报海洋信道对包络谱的影响[J].声学技术,2010,29(3):258-263. |
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| 作者姓名： | 赵春梅 徐江 宋俊 |
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| 作者单位： | 1. 中国科学院研究生院,北京,100190;中国科学院声学研究所,北京,100190;海军装备研究院,北京,100161
2. 海军装备研究院,北京,100161 |
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| 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。
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| 关 键 词： | 射线模型 海洋信道 包络谱 传播 |
| 收稿时间： | 2009/8/31 0:00:00 |
| 修稿时间： | 2009/11/24 0:00:00 |
Fast forecasting of ocean channel's effects on demon spectrum with ray model |
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| ZHAO Chun-mei,XU Jiang and SONG Jun.Fast forecasting of ocean channel''s effects on demon spectrum with ray model[J].Technical Acoustics,2010,29(3):258-263. |
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| Authors: | ZHAO Chun-mei XU Jiang and SONG Jun |
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| Affiliation: | 1.Graduate School of Chinese Academy of Sciences,Beijing 100190,China;2.Insitute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China;3.Naval Academy of Armament,Beijing 100161,China) |
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| Abstract: | 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. |
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| Keywords: | ray model ocean channel Demon spectrum propagation |
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