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相关实验视频

Updated: May 10, 2025

Methods for Image-based Surveys of Benthic Macroinvertebrates and Their Habitat Exemplified by the Drop Camera Survey for the Atlantic Sea Scallop
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设计一个适应性的水下可见光通信系统.

Sana Rehman1, Yue Rong1, Peng Chen1

  • 1School of Electrical Engineering, Computing and Mathematical Sciences (EECMS), Curtin University, Kent Street, Bentley, WA 6102, Australia.

Sensors (Basel, Switzerland)
|April 28, 2025
PubMed
概括

研究人员开发了一种智能收发器,用于使用光效率 (Li-Fi) 和软件定义无线电 (SDR) 的水下光学通信. 该系统动态调整光束,提高数据传输可靠性和水下物联网 (IoUT) 的效率.

科学领域:

  • 在水下进行光通信.
  • 水下物联网 (IoUT) 的互联网.

背景情况:

  • 地球表面的70%是水,需要IoUT的可靠的水下通信.
  • 光波在可见光谱 (400-700 nm) 中提供高数据速率和带宽效率,但面临范围有限,路径丢失和流等挑战,导致信号噪声比 (SNR) 低.

研究的目的:

  • 设计和实施一个智能收发器,以实现强大高效的双向水下光通信.
  • 通过动态调整通信参数来增强 IoUT 中的实时数据传输.

主要方法:

  • 开发了一种双向通信系统,集成一个光效率 (Li-Fi) 发射器/接收器与470nm蓝光发射二极管 (LED) 和软件定义无线电 (SDR).
  • 实现了使用伺服电机和Arduino微控制器的动态适应机制,以根据接收的信号功率调整光束的分歧角度.
  • 利用脉冲位置调制 (PPM) 进行实时数据传输.

主要成果:

  • 集成的Li-Fi和SDR系统显示了吞吐量增加.
  • 动态光束角度调整显著提高了系统的稳定性和效率.
  • 脉冲位置调制被证明是实时水下光学数据传输的有效方法.

结论:

  • 智能收发器设计有效地解决了水下光通信的挑战.
关键词:
这里提供了Li-Fi.比特错误率比特错误率是多少权力,权力,权力,权力.脉冲位置调制脉冲位置调制软件定义无线电 软件定义无线电在水下可见光通信.

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  • 光束分歧角度的动态适应是改善IoUT通信的关键创新.
  • 集成Li-Fi,SDR和自适应控制为可靠和高效的水下数据传输提供了一个有希望的解决方案.