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

Errors in Global Positioning System01:26

Errors in Global Positioning System

34
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,...
34
Adjusting a Traverse01:12

Adjusting a Traverse

47
In the site survey of a four-sided traverse, internal angles are essential to ensure geometric accuracy. The survey revealed that the sum of the measured internal angles was 359 degrees and 48 minutes, which is 12 minutes less than the expected 360 degrees. This discrepancy signals an error likely arising from measurement inaccuracies during the fieldwork.To rectify this error, the adjustment process involved distributing the 12-minute shortfall equally across the four internal angles. By...
47
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

20
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...
20
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

26
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...
26
Time and frequency -Domain Interpretation of Phase-lead Control01:24

Time and frequency -Domain Interpretation of Phase-lead Control

75
Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
75
Area Computation by the Alternative Coordinate Method01:24

Area Computation by the Alternative Coordinate Method

44
The alternative coordinate method, also known as the Shoelace Formula, is a technique for determining the area of a traverse using Cartesian coordinates. This method relies on the sequential arrangement of x and y coordinates for each point of the shape, ensuring accuracy and ease of application.In this approach, each corner's x and y coordinates are listed as fractions, with the x-coordinate as the numerator and the y-coordinate as the denominator. These coordinates are arranged sequentially...
44

You might also read

Related Articles

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

Sort by
Same author

Establishment and Evaluation of Atmospheric Water Vapor Inversion Model Without Meteorological Parameters Based on Machine Learning.

Sensors (Basel, Switzerland)·2025
Same author

Anodic TiO2 nanotubes: double walled vs. single walled.

Faraday discussions·2014
Same author

Long non-coding RNA H19 promotes glioma cell invasion by deriving miR-675.

PloS one·2014
Same author

IL-37 ameliorates the inflammatory process in psoriasis by suppressing proinflammatory cytokine production.

Journal of immunology (Baltimore, Md. : 1950)·2014
Same author

Pillar[5]arene-based diglycolamides for highly efficient separation of americium(III) and europium(III).

Dalton transactions (Cambridge, England : 2003)·2014
Same author

V3 stain-free workflow for a practical, convenient, and reliable total protein loading control in western blotting.

Journal of visualized experiments : JoVE·2014
Same journal

RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

Sensors (Basel, Switzerland)·2026
Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026
Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026
Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026
Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026
Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: May 31, 2025

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
07:14

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Published on: May 1, 2018

7.7K

GPS Phase Integer Ambiguity Resolution Based on Eliminating Coordinate Parameters and Ant Colony Algorithm.

Ning Liu1, Shuangcheng Zhang1, Xiaoli Wu2

  • 1College of Geology Engineering and Geomatics, Chang'an University, Xi'an 710054, China.

Sensors (Basel, Switzerland)
|January 25, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a new method for Global Navigation Satellite System (GNSS) high-precision positioning by improving integer ambiguity resolution. The novel approach enhances the success rate of fixing integer ambiguity, crucial for accurate positioning applications.

Keywords:
Cholesky decompositionKalman filterQR decomposition transformationant colony algorithmdecorrelation processinginteger ambiguity

More Related Videos

Tactile Conditioning And Movement Analysis Of Antennal Sampling Strategies In Honey Bees Apis mellifera L.
10:14

Tactile Conditioning And Movement Analysis Of Antennal Sampling Strategies In Honey Bees Apis mellifera L.

Published on: December 12, 2012

10.6K
Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
13:44

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns

Published on: August 30, 2013

42.7K

Related Experiment Videos

Last Updated: May 31, 2025

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
07:14

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

Published on: May 1, 2018

7.7K
Tactile Conditioning And Movement Analysis Of Antennal Sampling Strategies In Honey Bees Apis mellifera L.
10:14

Tactile Conditioning And Movement Analysis Of Antennal Sampling Strategies In Honey Bees Apis mellifera L.

Published on: December 12, 2012

10.6K
Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
13:44

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns

Published on: August 30, 2013

42.7K

Area of Science:

  • Geomatics Engineering
  • Satellite Navigation Systems
  • Signal Processing

Background:

  • High-precision Global Navigation Satellite System (GNSS) positioning relies on accurately resolving integer ambiguity.
  • Conventional methods using double-difference models often suffer from increased ill-posedness and lower success rates due to coordinate parameter estimation with limited data.
  • This necessitates improved algorithms for reliable integer ambiguity resolution.

Purpose of the Study:

  • To propose a novel integer ambiguity resolution method that eliminates coordinate parameters and utilizes an ant colony algorithm.
  • To enhance the success rate and reliability of integer ambiguity fixing for GNSS high-precision positioning.
  • To validate the proposed method against conventional techniques using real-world GPS data.

Main Methods:

  • Elimination of coordinate parameters from the observation equation via QR decomposition transformation.
  • Estimation of ambiguity parameters using a Kalman filter to obtain the float solution.
  • Decorrelation of the float solution using continuous Cholesky decomposition.
  • Optimal integer ambiguity searching with an ant colony algorithm.

Main Results:

  • The proposed method demonstrates a good decorrelation effect on the ambiguity parameters.
  • Experimental results with static and dynamic GPS data confirm the method's ability to correctly and effectively resolve integer ambiguity.
  • Comparison with least squares and LAMBDA methods indicates superior performance in fixed success rate.

Conclusions:

  • The novel method effectively resolves integer ambiguity by decoupling coordinate and ambiguity parameters.
  • The integration of Kalman filtering, Cholesky decomposition, and ant colony optimization offers a robust solution for high-precision GNSS positioning.
  • This advancement contributes to more reliable and accurate applications of GNSS technology.