在实验室展示了水下声学螺旋源的实验
Ruben Viegas1, Friedrich Zabel2, Antonio Silva1
1Laboratory for Robotics and Engineering Systems, University of Algarve, 8005-139 Faro, Portugal.
Sensors (Basel, Switzerland)
|July 11, 2023
概括
一个新的水下声学螺旋源使得精确的轴承角度估计使用一个单一的水电话. 这项技术简化了用于无人水下车辆导航和目标检测等应用程序的本地化.
科学领域:
- 声学 声学 在声学方面
- 水下声学 水下声学
- 信号处理 信号处理
背景情况:
- 传统的水下定位依赖于水电话阵列.
- 螺旋式声源为轴承角度估计提供了一种新的方法.
- 这简化了水下导航和目标检测系统.
研究的目的:
- 介绍一个单片钢陶圆柱螺旋声源的原型设计.
- 描述其在产生螺旋和圆形声场方面的性能.
- 建议和验证螺旋源的接收校准方法.
主要方法:
- 创建一个单一的形陶圆柱螺旋声源的原型.
- 在水箱中进行多频声学测试.
- 描述传输电压响应,相位和方向性模式.
- 开发和应用一个接收校准方法.
主要成果:
- 螺旋源原型成功产生了螺旋和圆形声场.
- 声学测试描述了源的传输电压响应,相位和方向性.
- 拟议的校准方法在理想条件下实现了最大3°的角度误差.
- 当条件不同时,在25kHz以上观察到高达6°的平均角度误差.
结论:
- 一个单元螺旋声源可以有效地产生螺旋声场用于轴承估计.
- 开发的校准方法为水下定位提供了准确的角度测量.
- 这项技术减少了水下声系统的复杂性和成本.
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