Jove
Visualize
Contact Us
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 Concept Videos

Field Application of Global Positioning System01:28

Field Application of Global Positioning System

38
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...
38
Errors in Global Positioning System01:26

Errors in Global Positioning System

38
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,...
38
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

25
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...
25
Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

50
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...
50
Introduction to Global Positioning System01:30

Introduction to Global Positioning System

47
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,...
47
Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

27
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 short...
27

You might also read

Related Articles

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

Sort by
Same author

Parkinson's disease beyond the brain: erythrocyte α-synuclein transfer across the blood-brain barrier.

Brain : a journal of neurology·2026
Same author

A Similarity-Constrained Multi-way Gated Attention Network for Focused Ultrasound-induced Blood-brain Barrier Opening Evaluation.

IEEE transactions on bio-medical engineering·2025
Same author

Phillyrin improves pulmonary epithelial barrier dysfunction in LPS-induced acute lung injury through the RhoA/ROCK signaling pathway.

The Journal of pharmacy and pharmacology·2025
Same author

Precise antibody delivery to the brain via nanobubble-actuated focused ultrasound alleviates depression.

Proceedings of the National Academy of Sciences of the United States of America·2025
Same author

Enhanced Positron Emission Tomography Imaging of β-Amyloid through Focused Ultrasound-Mediated Gallium-68 Radiotracer Delivery across the Blood-Brain Barrier.

ACS chemical neuroscience·2025
Same author

Modified Zexie decoction improves phlegm-dampness type stage I hypertension by regulating the gut-immune-kidney axis.

Frontiers in pharmacology·2025

Related Experiment Video

Updated: Jun 10, 2025

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles
11:54

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles

Published on: March 13, 2017

9.2K

Robust Indoor Positioning with Smartphone by Utilizing Encoded Chirp Acoustic Signal.

Bingbing Cheng1, Ying Huang2,3, Chuanyi Zou4

  • 1State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China.

Sensors (Basel, Switzerland)
|October 16, 2024
PubMed
Summary

A novel acoustic positioning system, RATBILS, offers accurate indoor localization using smartphones. This method outperforms traditional techniques, achieving centimeter-level accuracy in various indoor environments.

Keywords:
TDOAencoded chirp acoustic signalmultipath and NLOSsmartphone

More Related Videos

Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization
06:00

Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization

Published on: August 27, 2021

5.2K
Harmonic Radar Tags for Insect Tracking: Lightweight, Low-cost, and Accessible
14:44

Harmonic Radar Tags for Insect Tracking: Lightweight, Low-cost, and Accessible

Published on: May 13, 2025

321

Related Experiment Videos

Last Updated: Jun 10, 2025

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles
11:54

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles

Published on: March 13, 2017

9.2K
Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization
06:00

Electroantennography-based Bio-hybrid Odor-detecting Drone using Silkmoth Antennae for Odor Source Localization

Published on: August 27, 2021

5.2K
Harmonic Radar Tags for Insect Tracking: Lightweight, Low-cost, and Accessible
14:44

Harmonic Radar Tags for Insect Tracking: Lightweight, Low-cost, and Accessible

Published on: May 13, 2025

321

Area of Science:

  • Navigation and Positioning
  • Acoustic Signal Processing
  • Indoor Localization Technologies

Background:

  • Indoor positioning is a critical research area for navigation.
  • Acoustic signal-based positioning offers high accuracy, low cost, and smartphone compatibility.
  • Existing methods face challenges with accuracy and robustness in complex indoor environments.

Purpose of the Study:

  • To propose a novel acoustic positioning method called RATBILS (Acoustic Positioning System).
  • To enhance indoor localization accuracy and robustness using encoded chirp acoustic signals.
  • To evaluate the performance of RATBILS against traditional methods.

Main Methods:

  • Utilizing encoded chirp acoustic signals transmitted by base stations.
  • Implementing a three-step process on smartphones: preprocessing, Time of Arrival (TOA) estimation, and Time Difference of Arrival (TDOA) calculation.
  • Employing band-pass filters for noise reduction and signal decoding for source locking.
  • Utilizing coarse and fine detection for robust TOA estimation, emphasizing first arrival and mitigating multipath/non-line-of-sight (NLOS) effects.

Main Results:

  • RATBILS achieved a positioning error of 0.23 m at 92% in scene 1, region 1, outperforming traditional methods.
  • A positioning error of 0.56 m at 92% was achieved in scene 1, region 2, also superior to traditional methods.
  • In scene 2, the maximum average positioning error was 1.26 m, significantly better than 3.33 m and 3.87 m from traditional methods.

Conclusions:

  • The proposed RATBILS system demonstrates superior performance in indoor acoustic positioning.
  • The method provides accurate and robust localization, even in challenging NLOS conditions.
  • RATBILS represents a significant advancement for smartphone-based indoor navigation systems.