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

Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving01:29

Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving

198
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
198
Accuracy, limits, and approximation01:28

Accuracy, limits, and approximation

982
Accuracy, limits, and approximations are common in many fields, especially in engineering calculations. These concepts are imperative for ensuring that a given value is as close as possible to its true value.
Accuracy is defined as the closeness of the measured value to the true or actual value. In engineering mechanics, repeated measurements are taken during theoretical or experimental analyses to ensure that the result is precise and accurate.
The accuracy of any solution is based on the...
982
Improving Translational Accuracy02:07

Improving Translational Accuracy

13.1K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
13.1K
Improving Translational Accuracy02:07

Improving Translational Accuracy

3.4K
3.4K
Accuracy and Precision01:52

Accuracy and Precision

13.6K
Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value.  Highly accurate...
13.6K
Numerical Calculations01:24

Numerical Calculations

1.0K
In engineering applications, the representation of the numerical value is critical. Presenting or reporting the answer is one of the essential parts of engineering practices. Numerical calculations are performed using handheld calculators or computers since numerically accurate answers are always preferred.
The solution to a problem is obtained using different methods. While manually solving algebraic symbols is one of the most common methods, the graphical method is often preferred. Computers...
1.0K

You might also read

Related Articles

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

Sort by
Same author

Analysis of Doppler positioning with LEO and MEO satellites.

Scientific reports·2026
Same author

T-RAIM for Precise Orbit Determination in LEO-PNT.

Sensors (Basel, Switzerland)·2025
Same author

Synthetic Meta-Signal Observations: The Beidou Case.

Sensors (Basel, Switzerland)·2024
Same author

Galileo-Based Doppler Shifts and Time Difference Carrier Phase: A Static Case Demonstration.

Sensors (Basel, Switzerland)·2023
Same author

Application of "Galileo High Accuracy Service" on Single-Point Positioning.

Sensors (Basel, Switzerland)·2023
Same author

GNSS Data/Pilot Combining with Extended Integrations for Carrier Tracking.

Sensors (Basel, Switzerland)·2023
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: Dec 4, 2025

Iterative Development of an Innovative Smartphone-Based Dietary Assessment Tool: Traqq
04:54

Iterative Development of an Innovative Smartphone-Based Dietary Assessment Tool: Traqq

Published on: March 19, 2021

5.0K

NeQuick-G and Android Devices: A Compromise between Computational Burden and Accuracy.

Ciro Gioia1, Daniele Borio1

  • 1Joint Research Centre of the European Commission, 21027 Ispra, Italy.

Sensors (Basel, Switzerland)
|October 22, 2020
PubMed
Summary
This summary is machine-generated.

Reducing the update rate for ionospheric correction models significantly cuts processing time for single-frequency Global Navigation Satellite System (GNSS) receivers. This optimization allows for efficient ionospheric delay mitigation without compromising positioning accuracy, making advanced models viable for smartphones.

Keywords:
AndroidNeQuick-Gcomputational loadionosphere

Related Experiment Videos

Last Updated: Dec 4, 2025

Iterative Development of an Innovative Smartphone-Based Dietary Assessment Tool: Traqq
04:54

Iterative Development of an Innovative Smartphone-Based Dietary Assessment Tool: Traqq

Published on: March 19, 2021

5.0K

Area of Science:

  • Satellite Navigation Systems
  • Geophysics
  • Signal Processing

Background:

  • Ionospheric delay is a major error source in Global Navigation Satellite System (GNSS) positioning.
  • Single-frequency receivers commonly use models like Klobuchar (GPS) and NeQuick-G (Galileo) for ionospheric correction.
  • NeQuick-G offers better accuracy but has higher computational demands, limiting its use in resource-constrained devices like smartphones.

Purpose of the Study:

  • To propose and evaluate a computationally efficient method for applying the NeQuick-G ionospheric correction model on single-frequency GNSS receivers, particularly for smartphone applications.
  • To investigate the feasibility of reducing the update rate of ionospheric correction computations based on the assumption of short-term stability of ionospheric delays.

Main Methods:

  • A novel application of the NeQuick-G Ionospheric Correction Algorithm (ICA) was developed, leveraging the assumption of constant ionospheric delays over short intervals.
  • The proposed method involved significantly reducing the update rate for the ionospheric correction computation.
  • The solution was implemented and validated using real-world data collected from a static smartphone in a custom setup.

Main Results:

  • A substantial reduction in processing time was achieved by decreasing the ionospheric correction update rate.
  • The analysis demonstrated negligible degradation in the navigation solution, including Ranging Error (RE) and position accuracy.
  • The trade-off between computational load and accuracy was effectively managed, showing the viability of the optimized approach.

Conclusions:

  • The proposed smart application of NeQuick-G, by reducing its update rate, offers a practical solution for mitigating ionospheric delays in single-frequency GNSS receivers.
  • This method significantly lowers computational requirements, making advanced ionospheric modeling accessible for devices like smartphones.
  • The findings support the adoption of NeQuick-G in market segments with limited processing power, enhancing GNSS positioning performance.