| 空间过滤简正波的模拟实验研究 |
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| 引用本文： | 王蕴玉, 周纪浔, 李红海, 张正中, 姜胜立, 尚尔昌, 包青华, 许龙江, 严国光. 空间过滤简正波的模拟实验研究[J]. 声学学报, 1981, 6(2): 65-79. DOI: 10.15949/j.cnki.0371-0025.1981.02.001 |
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| 作者姓名： | 王蕴玉 周纪浔 李红海 张正中 姜胜立 尚尔昌 包青华 许龙江 严国光 |
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| 作者单位： | 中国科学院声学研究所(王蕴玉，周纪浔，李红海，张正中，姜胜立，尚尔昌)，山东海洋学院物理系(包青华，许龙江)，山东海洋学院物理系(严国光) |
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| 摘 要： | 在侧壁无消声的波浪槽（70×2×0.6m3）内,利用9根有水平指向性的长圆管换能器作阵元,实现了前四号简正波的空间过滤,定性地研究了简正波过滤阵抑制近场点源干扰的理论概念,并对起伏波浪表面对各号简正波振幅起伏的影响作了初步观察。
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| 收稿时间： | 1980-07-02 |
THE MODEL EXPERIMENTAL STUDIES ON THE SPATIAL FILTERING OF MODES |
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| WANG Yun-yu, ZHOU Ji-xun, LI Hong-hai, ZHANG Zheng-zhong, JIANG Sheng-li, SHANG Er-chang, BAO Qing-hua, XU Long-jiang, YAN Guo-guang. THE MODEL EXPERIMENTAL STUDIES ON THE SPATIAL FILTERING OF MODES[J]. ACTA ACUSTICA, 1981, 6(2): 65-79. DOI: 10.15949/j.cnki.0371-0025.1981.02.001 |
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| Authors: | WANG Yun-yu ZHOU Ji-xun LI Hong-hai ZHANG Zheng-zhong JIANG Sheng-li SHANG Er-chang BAO Qing-hua XU Long-jiang YAN Guo-guang |
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| Abstract: | The spatial filtering of modes is very important both for theoretical purpose and practical purpose. Spatial filtering of modes is a main approach to verify the normal-mode theory and it is also the foundation to realize the field matching in the wave guide. It will have an important application in the investigation of the interaction between the sound wave and some environment factors such as the acoustic characteristics of ocean bottom, internal waves… etc, because the process of separated mode is simpler than the point source. |
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