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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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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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Errors in Global Positioning System01:26

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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

Introduction to Global Positioning System

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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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Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

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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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Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults
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Novel indoor positioning system based on ultra-wide bandwidth.

Zhen Wei1,2, Rui Jiang3, Xing Wei4,5

  • 1School of Computer and Information, Hefei University of Technology, Hefei, 230009, China.

Visual Computing for Industry, Biomedicine, and Art
|April 3, 2020
PubMed
Summary
This summary is machine-generated.

This study introduces a new ultra-wide bandwidth (UWB) positioning system to improve indoor accuracy. The novel UWB scheme achieves centimeter-level precision, outperforming current methods.

Keywords:
Hardware platformIndoor positioningPosition algorithmUltra-wide bandwidth

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Area of Science:

  • Engineering
  • Computer Science
  • Signal Processing

Background:

  • Indoor positioning systems face challenges with interference and accuracy.
  • Existing methods often struggle to provide reliable and precise location data.

Purpose of the Study:

  • To propose a novel indoor positioning scheme using ultra-wide bandwidth (UWB) technology.
  • To enhance accuracy and mitigate interference in indoor environments.

Main Methods:

  • Developed a distance measuring method for UWB devices.
  • Implemented a Taylor series expansion algorithm for coordinate detection.
  • Utilized anchor node locations and inter-device distances for positioning.

Main Results:

  • The proposed scheme demonstrated an observation error within 15 cm.
  • Simulation results indicate superior performance compared to existing algorithms.
  • Experimental validation using STM32 and DW1000 hardware confirmed the scheme's effectiveness.

Conclusions:

  • The novel UWB positioning scheme effectively addresses accuracy and interference issues.
  • The system achieves high precision, suitable for demanding indoor applications.
  • Experimental results validate the proposed method's practical viability.