| 声透镜波束形成和目标成像仿真与试验 |
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| 引用本文： | 卞红雨,吴菊. 声透镜波束形成和目标成像仿真与试验[J]. 哈尔滨工程大学学报, 2010, 31(7). DOI: 10.3969/j.issn.1006-7043.2010.07.001 |
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| 作者姓名： | 卞红雨 吴菊 |
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| 作者单位： | 哈尔滨工程大学水声技术实验室,黑龙江哈尔滨,150001;哈尔滨工程大学水声技术实验室,黑龙江哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 为了促进具有体积小、功耗低、成像速度快等优点的透镜声呐在水下成像中的应用,选取了PMMA(polymethyl methacrylate)和PMP(polymethyl pentene)2种材料,利用混合模型设计并加工了单透镜系统和双透镜系统,对2个透镜系统分别进行了波束形成和目标成像试验研究.试验测得的焦点位置和波束图与仿真结果基本一致,从而验证了混合模型模拟透镜声场的有效性和准确性.得到了十字形和圆环2种目标的成像图,通过综合比较各种试验结果可知:PMMA是一种有效的透镜加工材料,透镜组合在缩短焦距方面具有优势,但同时增大了对声波的吸收,因此透镜组的设计要综合考虑这2方面的因素.
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| 关 键 词： | 透镜声呐 波束形成 目标成像 |
Simulating and testing beam-forming and object imaging with acoustic lens-based sonar |
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| BIAN Hong-yu,WU Ju. Simulating and testing beam-forming and object imaging with acoustic lens-based sonar[J]. Journal of Harbin Engineering University, 2010, 31(7). DOI: 10.3969/j.issn.1006-7043.2010.07.001 |
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| Authors: | BIAN Hong-yu WU Ju |
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| Affiliation: | BIAN Hong-yu,WU Ju(Acoustic Science and Technology Laboratory,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | The advantages of lens-based sonar include small volume,low power consumption and high-speed imaging.In order to promote the application of sonar in underwater imaging,two kinds of lens systems were designed,simulated,and then fabricated for this paper.One was composed of a single lens made from polymethyl methacrylate(PMMA),and the other was composed of two lenses made from polymethyl pentene(PMP).Beam-forming and object imaging experiments for the lens systems were conducted in water tanks.The focal posit... |
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| Keywords: | lens-based sonar beam-forming object imaging |
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