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Errors in Global Positioning System01:26

Errors in Global Positioning System

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

Field Application of Global Positioning System

49
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...
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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

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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...
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Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

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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...
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Introduction to Global Positioning System01:30

Introduction to Global Positioning System

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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,...
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相关实验视频

Updated: Jul 10, 2025

Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
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适应性DCS-SOMP用于5G网络中的本地化参数估计.

Paulo Francisco da Conceição1, Flávio Geraldo Coelho Rocha1

  • 1Department of Electrical, Mechanical and Computer Engineering, Federal University of Goiás, Goiânia 74605-010, Brazil.

Sensors (Basel, Switzerland)
|November 25, 2023
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种适应性算法,用于使用5G毫米波和大规模MIMO技术精确地定位3D设备. 增强的分布式压缩传感-子空间直角匹配追求方法提高了工业4.0应用程序的准确性和效率.

关键词:
5G是什么意思? 5G是什么意思?DCS-SOMPP 的意思是压缩感应传感器 压缩感应参数估计的参数估计.

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相关实验视频

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科学领域:

  • 无线通信系统无线通信系统
  • 信号处理 信号处理
  • 机器人和自动化机器人与自动化

背景情况:

  • 5G毫米波 (mmWave) 和大规模多输入多输出 (mMIMO) 是先进无线系统的关键技术.
  • 在3D环境中精确定位设备对于工业4.0应用,如智能仓储至关重要.
  • 现有的本地化方法可能缺乏高精度任务所需的准确性和效率.

研究的目的:

  • 开发和评估一个适应算法,用于精确的3D设备定位.
  • 为了估计关键的定位参数:到达时间 (TOA),2D出发角度 (2D-AoD) 和2D到达角度 (2D-AoA).
  • 为了提高本地化在工业4.0场景中的性能.

主要方法:

  • 建模一个5G下行链路通道,结合mmWave和mMIMO.
  • 使用一个自适应的分布式压缩传感子空间正角匹配追求 (DCS-SOMP) 算法.
  • 在每个代中动态调整传感矩阵以限制搜索空间.

主要成果:

  • 适应性DCS-SOMP方法显著提高了参数估计的准确性.
  • 与传统技术相比,拟议的方法显示了更快的融合速度.
  • 观察到内存使用量减少,这表明计算效率更高.

结论:

  • 适应性DCS-SOMP算法为5G毫米波/毫米IMO系统中的3D设备定位提供了卓越的性能.
  • 这种增强的本地化能力对于精密驱动的工业4.0应用程序至关重要.
  • 该方法为复杂环境中准确高效的设备跟踪提供了一个有前途的解决方案.