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

Gyroscope01:02

Gyroscope

4.2K
A gyroscope is defined as a spinning disk in which the axis of rotation is free to assume any orientation. When spinning, the orientation of the spin axis is unaffected by the orientation of the body that encloses it. The body or vehicle enclosing the gyroscope can be moved from place to place, while the orientation of the spin axis remains the same. This makes gyroscopes very useful in navigation, especially where magnetic compasses cannot be used, such as in crewed and crewless spacecraft,...
4.2K
Gyroscope: Precession01:24

Gyroscope: Precession

5.5K
Precession can be demonstrated effectively through a spinning top. If a spinning top is placed on a flat surface near the surface of the Earth at a vertical angle and is not spinning, it will fall over due to the force of gravity producing a torque acting on its center of mass. However, if the top is spinning on its axis, it precesses about the vertical direction, rather than topple over due to this torque. Precessional motion is a combination of a steady circular motion of the axis and the...
5.5K
Glassware Calibration01:11

Glassware Calibration

1.4K
Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
1.4K
Instrument Calibration01:12

Instrument Calibration

753
Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
753
Velocity and Position by Integral Method01:13

Velocity and Position by Integral Method

8.1K
If acceleration as a function of time is known, then velocity and position functions can be derived using integral calculus. For constant acceleration, the integral equations refer to the first and second kinematic equations for velocity and position functions, respectively.
Consider an example to calculate the velocity and position from the acceleration function. A motorboat is traveling at a constant velocity of 5.0 m/s when it starts to decelerate to arrive at the dock. Its acceleration is...
8.1K
Measurement: Standard Units03:38

Measurement: Standard Units

80.4K
Every measurement provides three kinds of information: the size or magnitude of the measurement (a number), a standard of comparison for the measurement (a unit), and an indication of the uncertainty of the measurement. While the number and unit are explicitly represented when a quantity is written, the uncertainty is an aspect of the errors in the measurement results.
80.4K

You might also read

Related Articles

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

Sort by
Same author

Hermetically Sealed Graphene Nanomechanical Resonators with Long-Term Stability and Ultrahigh Sensitivity.

ACS applied materials & interfaces·2026
Same author

Wafer-scale and doping-tunable p-type semiconducting monolayer WSi<sub>2</sub>N<sub>4</sub> film.

National science review·2026
Same author

Operating a non-Hermitian atomic magnetometer with programmable digital electronics.

Nature communications·2026
Same author

Interfacial Thermal Conductance of Suspended Graphene/Hexagonal Boron Nitride Heterojunction Devices.

ACS applied materials & interfaces·2026
Same author

Angles-Only Navigation via Optical Satellite Measurement with Prior Altitude Constrained.

Sensors (Basel, Switzerland)·2025
Same author

Optimization of optical systems for low Earth orbit satellites observation under strong background radiation conditions.

Optics express·2025

Related Experiment Video

Updated: Feb 5, 2026

A Methodology for Capturing Joint Visual Attention Using Mobile Eye-Trackers
12:39

A Methodology for Capturing Joint Visual Attention Using Mobile Eye-Trackers

Published on: January 18, 2020

8.2K

A Comprehensive Calibration Method for a Star Tracker and Gyroscope Units Integrated System.

Wenfeng Tan1, Dongkai Dai2, Wei Wu3

  • 1College of Opto-Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China. tanwenfeng08@nudt.edu.cn.

Sensors (Basel, Switzerland)
|September 19, 2018
PubMed
Summary

This study introduces a new calibration method for integrated star tracker and gyroscope units (GUs), ensuring accurate attitude determination. The Kalman filter-based approach effectively estimates systematic errors for robust performance.

Keywords:
Kalman filtercomprehensive calibrationgyroscope unitsstar tracker

More Related Videos

How to Build a Dichoptic Presentation System That Includes an Eye Tracker
05:48

How to Build a Dichoptic Presentation System That Includes an Eye Tracker

Published on: September 6, 2017

9.0K
Using Eye Movements to Evaluate the Cognitive Processes Involved in Text Comprehension
06:49

Using Eye Movements to Evaluate the Cognitive Processes Involved in Text Comprehension

Published on: January 10, 2014

28.1K

Related Experiment Videos

Last Updated: Feb 5, 2026

A Methodology for Capturing Joint Visual Attention Using Mobile Eye-Trackers
12:39

A Methodology for Capturing Joint Visual Attention Using Mobile Eye-Trackers

Published on: January 18, 2020

8.2K
How to Build a Dichoptic Presentation System That Includes an Eye Tracker
05:48

How to Build a Dichoptic Presentation System That Includes an Eye Tracker

Published on: September 6, 2017

9.0K
Using Eye Movements to Evaluate the Cognitive Processes Involved in Text Comprehension
06:49

Using Eye Movements to Evaluate the Cognitive Processes Involved in Text Comprehension

Published on: January 10, 2014

28.1K

Area of Science:

  • Aerospace Engineering
  • Navigation Systems
  • Sensor Fusion

Background:

  • Integrated star trackers and gyroscope units (GUs) provide continuous, high-rate attitude information.
  • Systematic error calibration is essential for maintaining the accuracy of these integrated systems.
  • Existing methods may not fully address the complex error interactions in combined systems.

Purpose of the Study:

  • To propose a comprehensive, global calibration method for star tracker and GU integrated systems.
  • To accurately model and estimate systematic errors affecting attitude determination.
  • To analyze error coupling for improved calibration robustness.

Main Methods:

  • Established an observation model for predicted star centroid error (PSCE) concerning systematic errors.
  • Modeled systematic errors using differential equations to create a state-space model.
  • Employed a Kalman filter for decoupling and estimating systematic errors based on the established models.

Main Results:

  • The proposed method accurately estimates systematic errors of the integrated star tracker and GU system.
  • Demonstrated high accuracy and robustness against varying star centroid accuracies and gyroscope noise levels.
  • Analyzed and quantified the coupling between principal point errors and fixed angle subcomponent errors (Ψx, Ψy).

Conclusions:

  • The developed calibration method is effective for integrated star tracker and GU systems.
  • The approach ensures high accuracy and robustness in attitude determination.
  • This work contributes to reliable navigation and attitude estimation in aerospace applications.