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

Accelerators01:17

Accelerators

278
Accelerators in concrete serve as admixtures to speed up the hardening process, enabling the concrete to achieve early strength faster. Although accelerators do not necessarily impact the time it takes concrete to set, they reduce this time in practice. A common accelerator is calcium chloride, which is particularly useful for hastening early strength development in cold weather or for rapid repair jobs that require quick heat generation after mixing.
The effectiveness of calcium chloride can...
278
Accelerating Fluids01:17

Accelerating Fluids

2.3K
When a fluid is in constant acceleration, the pressure and buoyant force equations are modified. Suppose a beaker is placed in an elevator accelerating upward with a constant acceleration, a. In the beaker, assume there is a thin cylinder of height h with an infinitesimal cross-sectional area, ΔS.
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
2.3K
Instantaneous Acceleration01:16

Instantaneous Acceleration

22.7K
Acceleration is in the direction of the change in velocity, but it is not always in the direction of motion. When an object slows down, its acceleration is opposite to the direction of its motion. Although commonly referred to as deceleration, this causes confusion in our analysis as deceleration is not a vector, and does not point to a specific direction with respect to a coordinate system. Therefore, the term deceleration is not used. For example, when a subway train slows down, it...
22.7K
Acceleration Vectors01:30

Acceleration Vectors

21.7K
In everyday conversation, accelerating means speeding up. Acceleration is a vector in the same direction as the change in velocity, Δv, therefore the greater the acceleration, the greater the change in velocity over a given time. Since velocity is a vector, it can change in magnitude, direction, or both. Thus acceleration is a change in speed or direction, or both. For example, if a runner traveling at 10 km/h due east slows to a stop, reverses direction, and continues their run at 10 km/h...
21.7K
Average Acceleration01:30

Average Acceleration

12.9K
The importance of understanding acceleration spans our day-to-day experiences, as well as the vast reaches of outer space and the tiny world of subatomic physics. In everyday conversation, to accelerate means to speed up. For instance, we are familiar with the acceleration of our car; the harder we apply our foot to the gas pedal, the faster we accelerate. The greater the acceleration, the greater the change in velocity over a given time. Acceleration is widely seen in experimental physics. In...
12.9K
Naturalistic Observations02:30

Naturalistic Observations

17.0K
If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
17.0K

You might also read

Related Articles

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

Sort by
Same author

Bridging to low-dose corticosteroids after satralizumab discontinuation in unplanned pregnancy: Two cases of AQP4-positive NMOSD.

Multiple sclerosis and related disorders·2026
Same author

An Ultra-Strength, Low-Temperature-Curing Adhesive Enabled by a Polyphenol-Enhanced Phase-Separation Network.

ACS applied materials & interfaces·2026
Same author

Preparation of high-performance soy protein adhesive through in situ-induced gelation strategy with enhanced cold-pressing strength and water retention.

International journal of biological macromolecules·2026
Same author

Study on the pollution law of complex working conditions in sand-filled fracture well washing operation.

PloS one·2026
Same author

Unraveling pH-shifting modulation of gluten-ionic polysaccharide interactions and network structure reconstruction: From physicochemical properties to microstructure.

International journal of biological macromolecules·2026
Same author

Allostatic load, sleep patterns, and genetic susceptibility in relation to severe mental illness: A prospective cohort study.

Schizophrenia research·2026

Related Experiment Video

Updated: Jan 23, 2026

Sensitivity Enhancement of Soft Capacitive Pressure Sensors Using a Solvent Evaporation-Based Porosity Control Technique
10:28

Sensitivity Enhancement of Soft Capacitive Pressure Sensors Using a Solvent Evaporation-Based Porosity Control Technique

Published on: March 24, 2023

2.4K

Enhanced extended state observer based control for missile acceleration autopilot.

Jiayi Tian1, Shifeng Zhang1, Huabo Yang1

  • 1College of Aerospace Science and Engineering, National University of Defense Technology, China.

ISA Transactions
|June 25, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces an enhanced extended state observer to estimate generalized disturbances in control systems. The method improves tracking control and rigorously proves equivalent input disturbance for enhanced disturbance handling.

Keywords:
Disturbance rejection based controlEquivalent input disturbanceExtended state observerMultiple mismatched disturbances

More Related Videos

Observation and Analysis of Blinking Surface-enhanced Raman Scattering
05:52

Observation and Analysis of Blinking Surface-enhanced Raman Scattering

Published on: January 11, 2018

7.8K
Generation of Heterogeneous Drug Gradients Across Cancer Populations on a Microfluidic Evolution Accelerator for Real-Time Observation
10:24

Generation of Heterogeneous Drug Gradients Across Cancer Populations on a Microfluidic Evolution Accelerator for Real-Time Observation

Published on: September 19, 2019

6.7K

Related Experiment Videos

Last Updated: Jan 23, 2026

Sensitivity Enhancement of Soft Capacitive Pressure Sensors Using a Solvent Evaporation-Based Porosity Control Technique
10:28

Sensitivity Enhancement of Soft Capacitive Pressure Sensors Using a Solvent Evaporation-Based Porosity Control Technique

Published on: March 24, 2023

2.4K
Observation and Analysis of Blinking Surface-enhanced Raman Scattering
05:52

Observation and Analysis of Blinking Surface-enhanced Raman Scattering

Published on: January 11, 2018

7.8K
Generation of Heterogeneous Drug Gradients Across Cancer Populations on a Microfluidic Evolution Accelerator for Real-Time Observation
10:24

Generation of Heterogeneous Drug Gradients Across Cancer Populations on a Microfluidic Evolution Accelerator for Real-Time Observation

Published on: September 19, 2019

6.7K

Area of Science:

  • Control Systems Engineering
  • Nonlinear Control Theory
  • State Estimation Techniques

Background:

  • Disturbance rejection is crucial in control systems, typically addressing internal uncertainties and external factors.
  • Existing methods often focus on stabilizing systems around zero, limiting performance.
  • A broader definition of disturbance, including system deviations from desired states, is needed.

Purpose of the Study:

  • To propose an enhanced extended state observer (EESO) for estimating generalized disturbances.
  • To develop a control strategy using the EESO for output tracking, not just stabilization.
  • To provide a rigorous proof of equivalent input disturbance (EID) for SISO systems.

Main Methods:

  • Development of an enhanced extended state observer (EESO).
  • Integration of the EESO with state feedback control.
  • Rigorous mathematical derivation and proof of equivalent input disturbance (EID).

Main Results:

  • The proposed method enables controlled output to track reference signals effectively.
  • The concept of EID is rigorously proven for single-input-single-output (SISO) systems.
  • The EID concept facilitates handling of multiple simultaneous disturbances.
  • Simulations and a missile autopilot example validate the method's efficacy.

Conclusions:

  • The enhanced extended state observer and associated control strategy offer improved performance in disturbance rejection.
  • The rigorous proof of EID advances the theoretical understanding of disturbance handling in control systems.
  • The proposed approach is effective for practical applications, including aerospace control systems.