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相关概念视频

Errors in Global Positioning System01:26

Errors in Global Positioning System

110
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
110
Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

118
GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
118
Introduction to Global Positioning System01:30

Introduction to Global Positioning System

137
The Global Positioning System (GPS) revolutionized positioning on Earth, providing precise location data through satellite ranging. The GPS system was developed in 1978 by the U.S. Department of Defense  for military use, and it became available for civilian applications in 1983, transforming fields including navigation, fleet management, and time synchronization for telecommunications systems.GPS consists of satellites in medium Earth orbit, about 20,200 kilometers above the surface,...
137
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

88
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
88

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Updated: Sep 9, 2025

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一个可靠的无人机追踪系统与在线再检测网络

Xin Lu1, Yulong Duan1, Fusheng Li1

  • 1Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, Zhejiang, 313001, PR China; School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, PR China; Laboratory for Microwave Spatial Intelligence and Cloud Platform, Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, Zhejiang, 313002, PR China.

ISA transactions
|September 4, 2025
PubMed
概括

这项研究引入了一个强大的无人机追踪系统,使用时间一致性和高效的再检测网络. 它提高了追踪可靠性,特别是在遮蔽和视角变化期间.

关键词:
长期追踪重新检测追踪故障无人机跟踪

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科学领域:

  • 计算机视觉
  • 机器人技术
  • 人工智能

背景情况:

  • 长期追踪故障对无人机系统构成挑战.
  • 现有的方法使用当前状态指标和缓慢的再检测,缺乏复杂场景的稳定性.

研究的目的:

  • 开发可靠的无人机追踪系统,解决当前方法的局限性.
  • 在具有挑战性的环境中增强跟踪的稳定性和灵活性.

主要方法:

  • 建议使用时间一致性偏差指数来估计跟踪不确定性.
  • 推出了一个在线再检测网络,
  • 整合了通道空间注意模块以改善特征提取在重新检测.

主要成果:

  • 拟议的算法优于UAV20L数据集的基线追踪器.
  • 在完全遮蔽和视角变化的场景中表现出卓越的表现.
  • 通过物理无人机追踪系统验证了实时性能和有效性.

结论:

  • 这种新方法显著提高了无人机跟踪的可靠性和效率.
  • 该系统有效地管理视角的遮蔽和变化,这对于实际应用至关重要.
  • 这项研究为无人机跟踪挑战提供了更强大,更灵活的解决方案.