从单个水声机的音调信号中估计目标运动参数
Kai Sun1, Dazhi Gao1, Xiaojing Zhao1
1Department of Marine Technology, Ocean University of China, Qingdao 266100, China.
Sensors (Basel, Switzerland)
|August 12, 2023
概括
这项研究引入了一种新的方法,用于使用音调信号来估计水下目标运动参数. 它克服了多普勒和模态干扰分析的挑战,以提高在浅水中的精度.
科学领域:
- 水下声学 水下声学
- 信号处理 信号处理
- 目标运动分析.
背景情况:
- 浅水波导中的音调信号包含模态干扰和多普勒转移信息.
- 由于参数合,现有的方法难以分别估计距离在最近的接近点 (rCPA) 和速度 (v),特别是在信号噪声比较低的情况下.
研究的目的:
- 提出一种新的方法,用单个水声机从音调信号中估计目标运动参数 (rCPA和v).
- 为了解决浅水环境中rCPA和v之间的参数合问题.
主要方法:
- 使用来自音调信号的多普勒转移和模态干扰信息.
- 根据信号信息生成两个不同的参数合曲线.
- 使用这些曲线独立估计目标的rCPA和v.
主要成果:
- 模拟实验证实了该方法的有效性.
- 应用于SWellEx-96和快艇实验,运动参数估计误差在10%以内.
结论:
- 拟议的方法有效地估计了浅水环境中的目标运动参数.
- 它克服了传统方法中的参数合的局限性.
- 在现实世界的实验中证明了实际的适用性和准确性.
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