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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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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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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) 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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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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Updated: May 21, 2025

Automated Deployment of an Internet Protocol Telephony Service on Unmanned Aerial Vehicles Using Network Functions Virtualization
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An Independent UAV-Based Mobile Base Station.

Sung-Chan Choi1,2, Sung-Yeon Kim3

  • 1School of Electrical and Electronic Engineering, Yonsei University, Seoul 03722, Republic of Korea.

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Summary
This summary is machine-generated.

A drone-mounted mobile base station using Public Safety LTE (PS-LTE) offers rapid communication restoration after disasters. This system ensures reliable, secure communication for emergency services, proving effective in real-world tests.

Keywords:
IOPSPS-LTEUAVimplementationmobile base stationprototype

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Area of Science:

  • Engineering
  • Telecommunications
  • Disaster Management

Background:

  • Disaster events like earthquakes and wildfires frequently damage essential communication infrastructure.
  • Restoring communication rapidly is critical for effective emergency response and public safety.

Purpose of the Study:

  • To propose and evaluate a Unmanned Aerial Vehicle (UAV)-based mobile base station for standalone communication in disaster zones.
  • To ensure reliable and secure communication for emergency services using Public Safety LTE (PS-LTE).

Main Methods:

  • Developed a UAV-based mobile base station prototype with PS-LTE capabilities.
  • Conducted simulations to determine optimal radio coverage and device placement.
  • Performed outdoor experiments to test the prototype's operational performance and data rates.

Main Results:

  • Simulations identified suitable locations for the mobile base station's radio coverage.
  • Experimental results demonstrated sufficient data rates for independent base station operation.
  • The prototype successfully provided standalone communication capabilities in an outdoor test environment.

Conclusions:

  • The UAV-based PS-LTE mobile base station is a viable solution for restoring communication infrastructure post-disaster.
  • This technology offers an agile and efficient approach to emergency communication.
  • The prototype represents a significant advancement in disaster resilience for communication systems.