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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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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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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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Application of "Galileo High Accuracy Service" on Single-Point Positioning.

Antonio Angrisano1, Silvia Ascione2, Giovanni Cappello3

  • 1Department of Engineering, Messina University, 98166 Messina, Italy.

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|May 13, 2023
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Summary
This summary is machine-generated.

Galileo High-Accuracy Service (HAS) enhances Single-Point Positioning (SPP) accuracy, particularly for vertical positioning. This advancement offers improved performance for GPS and Galileo, even in simple positioning systems.

Keywords:
GNSSGPSGalileoHigh-Accuracy Service (HAS)Single-Point Positioning

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Area of Science:

  • Geomatics Engineering
  • Satellite Navigation Systems
  • Geodesy

Background:

  • Precise positioning techniques are crucial for low-cost receivers across various applications.
  • Complex methods like Precise Point Positioning (PPP) and differential techniques have drawbacks for users.
  • Single-Point Positioning (SPP) alone lacks the desired high accuracy.

Purpose of the Study:

  • To analyze the impact of the Galileo High-Accuracy Service (HAS) on Single-Point Positioning (SPP).
  • To evaluate HAS performance for both Galileo and GPS constellations.
  • To assess SPP accuracy in single- and double-constellation modes with HAS.

Main Methods:

  • Evaluation of Galileo High-Accuracy Service (HAS) data.
  • Testing Single-Point Positioning (SPP) algorithms with and without HAS corrections.
  • Comparative analysis of positioning accuracy using Galileo and GPS, in single and dual constellation configurations.

Main Results:

  • The integration of HAS shows encouraging improvements in SPP accuracy.
  • Significant centimetric enhancements were observed, particularly in the vertical positioning channel.
  • Performance gains were noted for both Galileo and GPS, across different constellation modes.

Conclusions:

  • Galileo HAS positively impacts the accuracy of Single-Point Positioning (SPP).
  • HAS provides valuable corrections that improve vertical positioning, making SPP more viable.
  • The study demonstrates the potential of HAS to enhance GNSS positioning for a wider range of applications.