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相关概念视频

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
Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

120
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...
120
Errors in Global Positioning System01:26

Errors in Global Positioning System

112
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,...
112
Introduction to Global Positioning System01:30

Introduction to Global Positioning System

139
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,...
139
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device01:30

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

168
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
168
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

118
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over...
118

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相关实验视频

Updated: Sep 11, 2025

Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults
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基于超宽带的实时定位的完整解决方案.

Vlad Ratiu1,2, Ovidiu Ratiu2, Olivier Raphael Smeyers3

  • 1Computer Science Department, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, Romania.

Sensors (Basel, Switzerland)
|August 14, 2025
PubMed
概括

本研究介绍了使用超宽带 (UWB) 技术和混合机器学习的实时定位系统. 它显著减少了对准确,高频位置跟踪的计算需求.

关键词:
在 AutoGluon 中使用.这就是RTLS.这是一个TDoA.在 ToF 的 ToF 里.机器学习是机器学习.定位定位 定位定位实时实时的时间.超宽带 超宽带是什么?

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Three-Dimensional Ultrasonic Needle Tip Tracking with a Fiber-Optic Ultrasound Receiver
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相关实验视频

Last Updated: Sep 11, 2025

Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults
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科学领域:

  • 工程 工程师 工程师 工程师
  • 计算机科学 计算机科学
  • 信号处理 信号处理

背景情况:

  • 实时定位系统 (RTPS) 对于各种应用,从工业到商业用途至关重要.
  • 无线电频率 (RF) 系统通常使用飞行时间 (ToF) 和抵达时间差 (TDoA) 来定位.
  • 由于对多层算法的高计算需求,TDoA系统经常面临局限性.

研究的目的:

  • 使用超宽带 (UWB) 技术设计,实施和验证基于TDoA的新型RTPS.
  • 克服高频定位现有TDoA系统中的计算限制.
  • 为了提高定位精度,同时降低计算功率要求.

主要方法:

  • 使用UWB技术开发基于TDoA的完整的硬件和软件RTPS.
  • 混合机器学习 (ML) 解决方案的集成与算法微调.
  • 对系统性能与最先进的解决方案进行验证和验证.

主要成果:

  • 证明了对TDoA定位所需的计算功率的显著减少.
  • 实现了高频标签位置更新率与所需的准确性.
  • 成功地解决了传统TDoA多层算法的局限性.

结论:

  • 开发的UWB TDoA系统为实时定位提供了高效准确的解决方案.
  • 混合ML和算法调整有效地减轻了TDoA系统中的计算挑战.
  • 这种方法推进了实时定位系统 (RTLS) 的最新技术.