在一个分层的海洋中,表面产生噪声的矢量场之间的空间相关性的分析模型在分层海洋中产生噪声
1Agency for Defense Development, Changwon 51698, South Korea.
The Journal of the Acoustical Society of America
|September 25, 2024
概括
矢量传感器利用粒子速度进行水下探测,提供比传统水音机更多的空间信息. 这项研究证实海洋环境因素显著影响矢量传感器空间相关性.
科学领域:
- 水下声学 水下声学
- 海洋学 海洋学 海洋学
- 传感器技术 传感器技术
背景情况:
- 传统的水下探测依赖于基于水电话的声压.
- 矢量传感器通过测量粒子速度提供先进的功能,提供更丰富的空间相关数据.
- 现有的声学空间相关性模型往往过于简化了海洋环境.
研究的目的:
- 将现有的声压空间相关性模型扩展到向量场.
- 调查现实的海洋环境因素对矢量传感器空间相关性的影响.
- 为了将分层海洋环境中的矢量传感器空间相关性与同otropic噪声模型进行比较.
主要方法:
- 开发了适用于矢量传感器数据的扩展空间相关性模型.
- 在一个分层的海洋中,模拟了表面产生的噪声的声学空间相关性.
- 将模型输出与基于同源噪声假设的模拟进行了比较.
主要成果:
- 海洋环境因素,如声音速度和密度,显著影响矢量传感器空间相关性.
- 扩展模型准确地反映了在现实的海洋条件下复杂的空间相关性模式.
- 量化了与同位体噪声模型的偏差,突出了环境因素的重要性.
结论:
- 矢量传感器空间相关性严重依赖于海洋环境特性.
- 开发的模型为矢量传感器提供了更准确的水下声学空间相关性表示.
- 这项研究通过考虑复杂的海洋学影响,提高了水下探测能力.
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