使用分布式声学传感 (DAS) 系统进行事件分类的全面数据集.
Adrian Tomasov1, Pavel Zaviska2, Petr Dejdar2
1Brno University of Technology, FEEC, Dept. of Telecommunications, Technicka 12, 61600, Brno, Czech Republic. tomasov@vutbr.cz.
Scientific data
|May 14, 2025
概括
本研究引入了分布式声学传感 (DAS) 事件的新标记数据集,这对于改进机器学习模型至关重要. 该数据集可以更准确地对来自行走,跑步和车辆的声信号进行分类.
科学领域:
- 地质学和传感器技术.
- 机器学习应用程序 机器学习应用程序
- 数据科学用于信号处理.
背景情况:
- 分布式声学传感 (DAS) 使用光纤进行远距离的高分辨率声学检测.
- 在DAS中准确的事件分类对于地震和结构监测等应用至关重要,但受到杂的高维数据的挑战.
- 现有的机器学习方法受到大型,高质量的标记DAS数据集的稀缺性所限制.
研究的目的:
- 提出一个新的,全面的,并标记的分布式声学传感 (DAS) 测量数据集.
- 促进用于DAS事件分类的先进机器学习模型的开发和验证.
- 为了解决在推进DAS技术中对高质量的数据的关键需求.
主要方法:
- 在大学校园环境中收集DAS测量结果.
- 标记数据集,以包括各种事件,如行人和车辆运动,以及潜在的安全事件.
- 通过训练一个卷积神经网络 (CNN) 模型来证明数据集的实用性.
主要成果:
- 一个有价值的,标记的DAS测量数据集已经成功创建和策划.
- 数据集支持机器学习模型的开发,以增强事件分类.
- 对CNN模型的成功训练验证了所呈现的数据集的质量和实用性.
结论:
- 开发的标记DAS数据集是研究界的重要资源.
- 这一数据集将加速DAS系统的自动化和准确事件分类的进展.
- 这些发现突出了机器学习的潜力,通过高质量的数据来解决DAS信号处理方面的挑战.
相关概念视频
Classification of Signals
1.6K
In signal processing, signals are classified based on various characteristics: continuous-time versus discrete-time, periodic versus aperiodic, analog versus digital, and causal versus noncausal. Each category highlights distinct properties crucial for understanding and manipulating signals.
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
1.6K
Classification of Systems-I
742
Linearity is a system property characterized by a direct input-output relationship, combining homogeneity and additivity.
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
742
Discrete Fourier Transform
1.3K
The Discrete Fourier Transform (DFT) is a fundamental tool in signal processing, extending the discrete-time Fourier transform by evaluating discrete signals at uniformly spaced frequency intervals. This transformation converts a finite sequence of time-domain samples into frequency components, each representing complex sinusoids ordered by frequency. The DFT translates these sequences into the frequency domain, effectively indicating the magnitude and phase of each frequency component present...
1.3K


