Jove
Visualize
Contact Us

Related Concept Videos

Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

43
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...
43
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

23
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...
23
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

18
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...
18
Errors in Global Positioning System01:26

Errors in Global Positioning System

26
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,...
26
Introduction to Global Positioning System01:30

Introduction to Global Positioning System

39
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,...
39

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Scalable and stretchable 1D multifunctional fibers for multimodal sensing and stimulation.

Nature communications·2026
Same author

A high precision vital signs detection method based on millimeter wave radar.

Scientific reports·2024
Same author

Nanoscale imaging of tumor cell exosomes by expansion single molecule localization microscopy (ExSMLM).

Talanta·2023
Same author

Predicting Alzheimer's Disease Conversion From Mild Cognitive Impairment Using an Extreme Learning Machine-Based Grading Method With Multimodal Data.

Frontiers in aging neuroscience·2020
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Video

Updated: May 23, 2025

Home-Based Monitor for Gait and Activity Analysis
07:24

Home-Based Monitor for Gait and Activity Analysis

Published on: August 8, 2019

6.7K

A device free high-precision indoor positioning and tracking method based on GMM-WKNN algorithm.

Mumen Jiang1, Jiangnan Yuan2

  • 1School of Optoelectronic and Communication Engineering, Xiamen University of Technology, Xiamen, 361000, China.

Scientific Reports
|May 21, 2025
PubMed
Summary

This study introduces a novel Wi-Fi Channel State Information (CSI) indoor localization and tracking algorithm. The method enhances accuracy by integrating Gaussian Mixture Models (GMM), Weighted K-Nearest Neighbors (WKNN), and Kalman filtering for precise passive tracking.

More Related Videos

Picometer-Precision Atomic Position Tracking through Electron Microscopy
15:04

Picometer-Precision Atomic Position Tracking through Electron Microscopy

Published on: July 3, 2021

6.4K
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

6.7K

Related Experiment Videos

Last Updated: May 23, 2025

Home-Based Monitor for Gait and Activity Analysis
07:24

Home-Based Monitor for Gait and Activity Analysis

Published on: August 8, 2019

6.7K
Picometer-Precision Atomic Position Tracking through Electron Microscopy
15:04

Picometer-Precision Atomic Position Tracking through Electron Microscopy

Published on: July 3, 2021

6.4K
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

6.7K

Area of Science:

  • Wireless communication
  • Signal processing
  • Indoor positioning

Background:

  • Current indoor localization and tracking methods suffer from high deployment complexity and algorithmic intricacies.
  • There is a need for accurate and efficient passive tracking solutions in indoor environments.

Purpose of the Study:

  • To develop a Wi-Fi CSI-based indoor localization and tracking algorithm that overcomes the limitations of existing methods.
  • To enhance tracking accuracy and reduce complexity through an integrated GMM, WKNN, and Kalman filtering approach.

Main Methods:

  • Utilized Gaussian Mixture Model (GMM) for offline fingerprint database creation and online Channel State Information (CSI) data clustering.
  • Employed Weighted K-Nearest Neighbors (WKNN) for initial trajectory estimation based on categorized CSI data.
  • Applied Kalman filtering for refining trajectory estimation and achieving passive tracking.

Main Results:

  • The GMM effectively captures complex indoor channel characteristics, offering significant filtering and noise reduction.
  • The proposed algorithm demonstrated improved tracking accuracy compared to traditional methods and CNN-based approaches.
  • Successful passive tracking of individuals indoors was achieved.

Conclusions:

  • The integrated GMM-WKNN-Kalman filter approach provides an effective solution for Wi-Fi CSI-based indoor localization and tracking.
  • This method offers enhanced accuracy and reduced complexity for passive indoor tracking applications.
  • The algorithm's ability to handle complex channel characteristics makes it suitable for diverse indoor environments.