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Related Concept Videos

Field Application of Global Positioning System01:28

Field Application of Global Positioning System

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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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Types of Global Positioning System Surveys01:30

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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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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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Introduction to Global Positioning System01:30

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

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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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Electronic Distance Measuring Instruments01:30

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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...
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Updated: Sep 11, 2025

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A Complete Solution for Ultra-Wideband Based Real-Time Positioning.

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
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Summary
This summary is machine-generated.

This study introduces a real-time positioning system using Ultra-Wideband (UWB) technology and hybrid machine learning. It significantly reduces computational needs for accurate, high-frequency location tracking.

Keywords:
AutoGluonRTLSTDoAToFmachine learningpositioningreal timeultra-wideband

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Area of Science:

  • Engineering
  • Computer Science
  • Signal Processing

Background:

  • Real-time positioning systems (RTPS) are crucial for diverse applications, from industrial to commercial uses.
  • Radio Frequency (RF) systems commonly employ Time of Flight (ToF) and Time Difference of Arrival (TDoA) for positioning.
  • TDoA systems often face limitations due to high computational demands for multi-lateration algorithms.

Purpose of the Study:

  • To design, implement, and validate a novel TDoA-based RTPS using Ultra-Wideband (UWB) technology.
  • To overcome computational limitations in existing TDoA systems for high-frequency positioning.
  • To enhance positioning accuracy while reducing computational power requirements.

Main Methods:

  • Development of a complete hardware and software TDoA-based RTPS utilizing UWB technology.
  • Integration of a hybrid Machine Learning (ML) solution with algorithmic fine-tuning.
  • Verification and validation of the system's performance against state-of-the-art solutions.

Main Results:

  • Demonstrated significant reduction in computational power required for TDoA positioning.
  • Achieved high-frequency tag position refresh rates with desired accuracy.
  • Successfully addressed limitations of traditional TDoA multi-lateration algorithms.

Conclusions:

  • The developed UWB TDoA system offers an efficient and accurate solution for real-time positioning.
  • Hybrid ML and algorithmic tuning effectively mitigate computational challenges in TDoA systems.
  • This approach advances the state of the art in real-time location systems (RTLS).