通过匹配到达角域中的干扰结构来估计音色源的源深度
Yubo Qi1, Shihong Zhou1, Changpeng Liu1
1State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.
The Journal of the Acoustical Society of America
|November 2, 2023
概括
这项研究增强了使用垂直线阵列 (VLA) 的移动声源的被动源深度估计. 它考虑了声速配置文件,提高了远距离源的准确性.
科学领域:
- 水下声学 水下声学
- 声学信号处理 声学信号处理
- 海洋学 海洋学 海洋学
背景情况:
- 使用垂直线阵列 (VLA) 的被动源深度估计依赖于声学到达角度干扰模式.
- 使用等速近似的现有方法在较长的范围内失败,因为忽视了声速特征效应.
研究的目的:
- 为移动的音调源开发一种改进的被动源深度估计方法.
- 为了提高准确性,包括声速概况信息,特别是在更远的范围内.
主要方法:
- 开发了一个理论公式来模拟到达角域中的干扰结构,考虑声音速度配置文件.
- 将VLA光束形成的测量干扰模式与模拟结构匹配,以估计源深度.
主要成果:
- 成功估计了模拟和实验数据的源深,包括拖船和经过船的源.
- 与以前的方法相比,对远距离源的深度估计准确度得到了改进.
结论:
- 拟议的方法有效地估计了移动的音调源的深度,即使在扩展范围.
- 考虑声速概况对于在水下环境中准确定位被动声源至关重要.
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