李东林,梁民帅,王志超.Scholte波识别水池缩比实验[J].,2023,42(4):774-780 |
Scholte波识别水池缩比实验 |
Scholte wave identification pool scale experiment |
投稿时间:2022-03-11 修订日期:2022-11-10 |
中文摘要: |
该文基于简正波分离识别Scholte波的方法,分析了之前Scholte波识别水池缩比实验结果中出现较大误差的原因,提出从声场中优先提取其他阶简正波的方法来改善实验结果、降低实验误差,并证实增加合成孔径垂直阵采样点数至119点(一次采样期间首末阵元信号保持良好相关性),有助于改善水池Scholte波识别误差,从而使水池Scholte波识别缩比使实验结果与理论值更为接近。水池缩比实验的结果证明该方法改善了Scholte波识别实验的结果,降低了声源深度较浅、Scholte波激发较弱时的实验误差,使水池缩比实验简正波分离识别Scholte波的方法更加可靠。 |
英文摘要: |
Based on the identification method of Scholte wave using normal wave deposition, this paper analyzes and explains the errors appearing in the previous Scholte wave identification pool scale experiment. Preferentially extracting other normal waves from the sound field and increasing the sampling points of the experimental vertical array to 119 points (the signals of the first and last array elements maintain good correlation during one sampling) to reduce the errors and make the results closer to the theoretical results are confirmed. The results of pool scale experiment prove that these methods improve the results of the identification experiment of Scholte waves, reduce the errors appearing when the source depth is shallow and the Scholte wave excitation is weak, and make the method of Scholte wave identification using normal wave deposition in pool scale experiment more reliable. |
DOI:10.11684/j.issn.1000-310X.2023.04.013 |
中文关键词: Scholte波 水池实验 简正波分离 |
英文关键词: Scholte wave pool experiment normal wave separation |
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