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相关概念视频

Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

63
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...
63
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

51
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...
51
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

56
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...
56
Distance Measurements by Taping01:18

Distance Measurements by Taping

46
Tapes are essential in surveying for accurate, durable, and short-distance measurements. Made from lightweight, nylon-coated steel, they offer flexibility and strength for rugged outdoor use. The nylon coating protects against rust and wear, extending the tape's life. Standard lengths, around 30 meters, are marked in meters and millimeters for precision.Surveyors select tapes based on site conditions and accuracy needs. Lightweight, nylon-coated tapes are commonly used for ease of handling and...
46
Errors in Global Positioning System01:26

Errors in Global Positioning System

49
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,...
49
Introduction to Global Positioning System01:30

Introduction to Global Positioning System

67
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,...
67

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相关实验视频

Updated: Jul 12, 2025

Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults
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室内UWB定位和位置跟踪数据集

Klemen Bregar1

  • 1Institut Jožef Stefan, Department of Communication Systems, Ljubljana, 1000, Slovenia. klemen.bregar@ijs.si.

Scientific data
|October 26, 2023
PubMed
概括
此摘要是机器生成的。

这项研究引入了超宽带 (UWB) 室内定位的新数据集,使其能够精确地准确到厘米级. 这些数据支持开发各种应用的先进定位和跟踪算法.

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Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
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An Experimental Protocol for Assessing the Performance of New Ultrasound Probes Based on CMUT Technology in Application to Brain Imaging
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相关实验视频

Last Updated: Jul 12, 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:

  • 室内定位对于工业,医疗保健和商业应用至关重要.
  • 超宽带 (UWB) 技术提供具有成本效益的,高精度的基于范围的定位.
  • UWB的高时间分辨率可以进行厘米级范围测量.

研究的目的:

  • 收集和呈现一个全面的数据集,用于开发和评估基于范围的室内定位系统.
  • 通过UWB技术来促进定位和位置跟踪算法的创建.
  • 为可重复性分析和UWB定位的进一步研究提供工具.

主要方法:

  • 在四个不同的室内环境中收集了测量结果.
  • 使用了八个固定设备 () 和一个移动设备 (标签).
  • 预先定义的路径和同等距离的采样被用来减轻步行速度的变化.
  • 在每个位置记录了范围测量和通道脉冲响应 (CIR) 数据.

主要成果:

  • 从多个室内环境中生成了一个数据集,支持各种网络拓和标签配置.
  • 这些数据可以开发和测试基于距离的定位和位置跟踪算法.
  • 提供的数据分析工具确保了结果的可重现性,并有助于进一步开发算法.

结论:

  • UWB定位数据集对于推进室内定位研究非常有价值.
  • 数据集和分析工具支持创建强大而准确的定位系统.
  • 这项工作为未来基于UWB的室内导航和跟踪创新奠定了基础.