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Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

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...
Errors in Global Positioning System01:26

Errors in Global Positioning System

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

Field Application of Global Positioning System

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...
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

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 served as...
Introduction to Global Positioning System01:30

Introduction to Global Positioning System

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,...
State Space Representation01:27

State Space Representation

The frequency-domain technique, commonly used in analyzing and designing feedback control systems, is effective for linear, time-invariant systems. However, it falls short when dealing with nonlinear, time-varying, and multiple-input multiple-output systems. The time-domain or state-space approach addresses these limitations by utilizing state variables to construct simultaneous, first-order differential equations, known as state equations, for an nth-order system.
Consider an RLC circuit, a...

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Related Experiment Video

Updated: May 13, 2026

Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults
04:13

Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults

Published on: February 8, 2019

Architecture for multi-technology real-time location systems.

Javier Rodas1, Valentín Barral, Carlos J Escudero

  • 1Department of Electronics and Systems, University of A Coruña, A Coruña, Spain. jrodas@udc.es

Sensors (Basel, Switzerland)
|February 26, 2013
PubMed
Summary
This summary is machine-generated.

This study introduces a hybrid software architecture for indoor location systems, merging data from various sensors to improve positioning accuracy. The design supports diverse users and technologies for transparent operation.

Related Experiment Videos

Last Updated: May 13, 2026

Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults
04:13

Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults

Published on: February 8, 2019

Area of Science:

  • Computer Science
  • Electrical Engineering
  • Geomatics Engineering

Background:

  • Indoor location systems are crucial for popular location-based services.
  • Existing systems often rely on single technologies, limiting performance.
  • Heterogeneous sensor fusion is necessary for robust indoor positioning.

Purpose of the Study:

  • To present a novel software architecture for hybrid indoor location systems.
  • To enable seamless integration of multiple sensor technologies.
  • To support independent and transparent use by various stakeholders.

Main Methods:

  • Developed a flexible software architecture for hybrid location systems.
  • Designed for modularity to accommodate different sensor inputs.
  • Facilitated independent operation for hardware administrators, algorithm developers, and user applications.

Main Results:

  • Demonstrated the architecture's capability to merge data from heterogeneous sensors.
  • Achieved improved target position estimation through sensor fusion.
  • Case studies validated the practical application and effectiveness of the architecture.

Conclusions:

  • The proposed architecture effectively integrates diverse sensor technologies for enhanced indoor positioning.
  • It offers a transparent and adaptable framework for developing advanced location-based services.
  • This approach provides a scalable solution for complex indoor environments.