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Related Concept Videos

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

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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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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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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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Improving Indoor WiFi Localization by Using Machine Learning Techniques.

Hanieh Esmaeili Gorjan1, Víctor P Gil Jiménez1

  • 1Department of Signal Theory and Communications, Universidad Carlos III de Madrid, Av. de la Universidad, 30, Leganés, 28911 Madrid, Spain.

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Summary
This summary is machine-generated.

This study introduces a new indoor positioning system using machine learning and a divide-and-conquer strategy. It achieves a mean absolute error of about 1 meter, offering a precise solution for indoor location tracking.

Keywords:
GridSearchCVKNNNNWiFi positioningXGBoostcatBoostmachine learningrandom forest

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Area of Science:

  • Computer Science
  • Engineering
  • Geomatics

Background:

  • Global Positioning System (GPS) is effective outdoors but limited for indoor environments.
  • Accurate indoor positioning is crucial for emerging applications and services.
  • Existing indoor positioning methods often face challenges with accuracy and robustness.

Purpose of the Study:

  • To present a novel architecture for high-accuracy indoor positioning.
  • To leverage machine learning techniques for improved indoor location estimation.
  • To provide insights into optimal machine learning methods for indoor positioning tasks.

Main Methods:

  • Implementation of a novel architecture for indoor positioning.
  • Application of machine learning techniques for error reduction.
  • Utilizing a divide-and-conquer strategy to enhance positioning precision.

Main Results:

  • Achieved a mean absolute error (MAE) of approximately 1 meter for latitude and longitude.
  • Demonstrated a precise and practical solution for indoor positioning challenges.
  • Identified effective machine learning techniques for indoor positioning.

Conclusions:

  • The proposed novel architecture offers a significant advancement in indoor positioning accuracy.
  • Machine learning and divide-and-conquer strategies are effective for overcoming indoor positioning limitations.
  • The findings provide a valuable resource for developing future indoor positioning systems.