中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
声场数值预报及其在军事上的应用

文献类型:学位论文

作者邹润
学位类别博士
答辩日期2005
授予单位中国科学院声学研究所
授予地点中国科学院声学研究所
关键词声场计算模型 演示系统
中文摘要海洋覆盖了地球表面四分之三的面积,蕴含了丰富的物产资源,同时作为全球运输的必经途径,其战略意义也非常重要。到目前为止,声波是已知的唯一能够在水中远距离传播的信息载体。为了在海水中进行远距离的探测和通讯,人们就必须了解声波在水中的传播过程,掌握声波在水中传播的规律。目前,比较常用的水中声场数值计算模型主要有简正波模型,射线模型和抛物线模型(PE模型)。为了更好地利用已存在的这些算法资源,有必要在现有的较成熟的计算模型库上建立一个综合传播特性、混响、噪声和一些工程应用在内的水下声环境特性演示系统,模拟和仿真水下战场环境景象,可以为海军装备的研制和验收以及性能评估、海军舰艇的作战使用提供技术支持和保障。本文就是在这种设计思想下,利用面向对象的设计方法,设计了一个综合了声场预报、混响预报和噪声预报的演示系统,文章的主要内容如下:首先介绍了简正波、射线和PE等常用的声场数值计算模型,对其适用范围进行了比较。其次,介绍了系统设计时使用的思想,系统的模块设置及功能实现,具体描述了数据模块、显示模块和控制模块,还对计算模块的接口进行了规范化定义。再次,利用该演示系统对各种典型水文条件下的声场进行预报,给出各种预报的实例。最后介绍了该系统在军事应用上的可行性。
英文摘要The ocean covers three quarters of the Earth's surface, and is the basis for all life on our planet. It contains a large number of resources, and is the important part of the global network. By now, the sound is the only one wave that can transfer for a long distance in the water as known. So the sound propagation must to be studied. There are three kinds of underwater sound propagation models that are mainly used, they are normal mode model, ray trace model, and PE(Parabolic Equation) model. It is necessary to design a software-hardware demo-platform based on the existing acoustic propagation models, including the numerical sound propagation predication models, reverberation models and ocean ambient noise, so that we can easily simulate the typical underwater environment. The system can give the Navy some advices to develop and evaluate the equipments used underwater and also the advices to adopt which kind of tactics. So an integral multi-media demo-system built on those prediction models is designed in this paper, using the object-oriented design method. In this paper, at first, the theories of the sound propagation models are introduced, and the applicability of the models is compared. Then, the settings and the function of the modules used in the system are described, mainly including the data module, the display module and the control module. And the interfaces of the modules are standarized here. And then, many kinds of typical environment are simulated, the sound propagation prediction are given. At last, the usage of the system in military affairs is discussed.
语种中文
公开日期2011-05-07
页码62
源URL[http://159.226.59.140/handle/311008/956]  
专题声学研究所_声学所博硕士学位论文_1981-2009博硕士学位论文
推荐引用方式
GB/T 7714
邹润. 声场数值预报及其在军事上的应用[D]. 中国科学院声学研究所. 中国科学院声学研究所. 2005.

入库方式: OAI收割

来源:声学研究所

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