| 不同波束形成的参量阵近场比较 |
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| 引用本文： | 李颂文. 不同波束形成的参量阵近场比较[J]. 声学技术, 2001, 20(2): 81-83 |
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| 作者姓名： | 李颂文 |
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| 作者单位： | 中国科学院东海研究站, |
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| 摘 要： | 文章采用KZK方程数值求解均匀平面阵，聚焦阵及非衍射阵形成的参量阵波束近场声场，比较了不同波束声轴上的原、差叔声压级及声截面。
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| 关 键 词： | 聚焦阵 非衍射阵 KZK方程 数值求解 参量阵声场 波束 均匀平面阵 差频声压级 声截面 线性声学 |
| 文章编号： | 1000-3630（2001）02-0081-03 |
| 收稿时间： | 2000-01-26 |
| 修稿时间： | 2000-01-26 |
Comparison of nearfields of several kinds of parametric array |
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| LI Song-wen. Comparison of nearfields of several kinds of parametric array[J]. Technical Acoustics, 2001, 20(2): 81-83 |
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| Authors: | LI Song-wen |
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| Affiliation: | Shanghai Acoustics Laboratory, The Chinese Academy of Sciences, Shanghai 200032, China |
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| Abstract: | The nearfields of parametric array produced by circular focus beam,circular uniform beam and nondiffracting beam was calculated by using KZK equation.The numeric result of the sound levels with difference frequency on the sound axises and the beam patterns were analyzed. |
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| Keywords: | focus beam nondiffracting beam parametric array |
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