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

Calibration Curves: Linear Least Squares01:20

Calibration Curves: Linear Least Squares

A calibration curve is a plot of the instrument's response against a series of known concentrations of a substance. This curve is used to set the instrument response levels, using the substance and its concentrations as standards. Alternatively, or additionally, an equation is fitted to the calibration curve plot and subsequently used to calculate the unknown concentrations of other samples reliably.
For data that follow a straight line, the standard method for fitting is the linear...
Root-Locus Method01:19

Root-Locus Method

A cruise control system in a car is designed to maintain a specified speed automatically by adjusting the gas pedal. The system continuously measures the vehicle's speed and makes fine adjustments to the pedal to achieve this goal. The root locus method is particularly useful for understanding how the cruise control system's behavior changes under varying conditions, such as when the car goes uphill, downhill, or faces strong wind resistance.
This system can be represented by a block diagram,...
Plotting and Calibrating the Root Locus01:19

Plotting and Calibrating the Root Locus

Root loci often diverge as system poles shift from the real axis to the complex plane. Key points in this transition are the breakaway and break-in points, indicating where the root locus leaves and reenters the real axis. The branches of the root locus form an angle of 180/n degrees with the real axis, where n is the number of branches at a breakaway or break-in point.
The maximum gain occurs at the breakaway points between open-loop poles on the real axis, while the minimum gain is observed...
PI Controller: Design01:24

PI Controller: Design

Proportional Integral (PI) controllers are a fundamental component in modern control systems, widely used to enhance performance and mitigate steady-state errors. They are particularly effective in applications such as automatic brightness adjustment on smartphones, where they excel at mitigating steady-state errors for step-function inputs. Unlike PD controllers, which require time-varying errors to function optimally, PI controllers leverage their integral component to address residual...
PD Controller: Design01:26

PD Controller: Design

In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Load-frequency control01:28

Load-frequency control

Load-frequency control (LFC) is vital for maintaining power system stability, ensuring that frequency and power flows remain within acceptable limits during load changes. Turbine-governor control eliminates rotor accelerations and decelerations following load changes. However, a steady-state frequency error persists when the change in the turbine-governor reference setting is zero. In an interconnected power system, each area agrees to export or import a scheduled amount of power through...

You might also read

Related Articles

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

Sort by
Same author

Licochalcone a enhances cognitive resilience in APP/PS1 Mice by modulating glucose metabolism, Aβ burden, and neuroinflammation.

GeroScience·2026
Same author

The Circadian Oscillator Affects Both Glutathione Homeostasis and Its Response to Salt Stress in Arabidopsis thaliana.

Plant, cell & environment·2026
Same author

Expert consensus: first multidisciplinary consensus on nuclear cardiology.

Archivos de cardiologia de Mexico·2026
Same author

Do picture books affect counting directionality in preliterate children? Developmental course and potential mechanisms.

Journal of experimental child psychology·2026
Same author

A Practical Case of Monitoring Older Adults Using mmWave Radar and UWB.

Sensors (Basel, Switzerland)·2026
Same author

Substitution-Mediated Calcination of Nickel-Based Cathodes: Decoupling Lithiation and Crystallization.

Journal of the American Chemical Society·2026

Related Experiment Video

Updated: May 24, 2026

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
06:45

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

LPS auto-calibration algorithm with predetermination of optimal zones.

Francisco Daniel Ruiz1, Jesús Ureña, Juan C García

  • 1Electronics Department, University of Alcalá de Henares, Escuela Politécnica. Ctra. Madrid-Barcelona, Km. 33,600, 28871 Alcalá de Henares, Spain. daniel.ruiz@depeca.uah.es

Sensors (Basel, Switzerland)
|February 21, 2012
PubMed
Summary

This study introduces a new method for calibrating beacon positions in local positioning systems (LPS). Optimal placement of test points significantly improves the accuracy of beacon calibration for better positioning.

Keywords:
LPSautocalibrationoptimal test pointsspherical and hyperbolic trilateration

More Related Videos

Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
09:01

Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques

Published on: April 4, 2017

Related Experiment Videos

Last Updated: May 24, 2026

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator
06:45

Design and Application of a Fault Detection Method Based on Adaptive Filters and Rotational Speed Estimation for an Electro-Hydrostatic Actuator

Published on: October 28, 2022

Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
09:01

Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques

Published on: April 4, 2017

Area of Science:

  • Robotics
  • Geomatics Engineering
  • Signal Processing

Background:

  • Accurate beacon coordinates are essential for local positioning systems (LPS).
  • Current methods for determining beacon coordinates, such as manual measurements or basic calibration algorithms, are often time-consuming, inflexible, or suboptimal.
  • Trilateration algorithms rely on precise beacon positions and distance measurements for localization.

Purpose of the Study:

  • To present an efficient method for calibrating beacon positions in LPS using a mobile receiver.
  • To develop a calibration technique applicable to both spherical and hyperbolic trilateration.
  • To provide a procedure for identifying optimal test point locations for improved calibration accuracy.

Main Methods:

  • A novel calibration method utilizing a mobile receiver to determine beacon coordinates in LPS.
  • The method requires only three known test points, allowing for unknown positions of other test points.
  • A procedure for estimating optimal test point placement within the LPS coverage zone is described.

Main Results:

  • The proposed method effectively calibrates beacon positions for both spherical and hyperbolic trilateration.
  • Simulations and experimental results demonstrate improved accuracy when using optimally placed test points compared to random selections.
  • The calibration procedure is shown to be more efficient and flexible than traditional manual measurements.

Conclusions:

  • The developed method offers an accurate and efficient approach to beacon calibration in local positioning systems.
  • Optimal placement of test points is crucial for maximizing the performance and accuracy of LPS calibration.
  • This work contributes to the advancement of precise indoor and outdoor positioning technologies.