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Effects of feedback

Effects of feedback

Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...

Feedback control systems

Feedback control systems

Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...

Time-Domain Interpretation of PD Control

Time-Domain Interpretation of PD Control

Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...

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Related Experiment Video

Updated: Jun 18, 2025

Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior

Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior

Published on: April 16, 2014

Correction: Reach adaption to a visuomotor gain with terminal error feedback involves reinforcement learning.

Tsuyoshi Ikegami, J Randall Flanagan, Daniel M Wolpert

|August 2, 2024

Summary

This study corrects a previously published article DOI. The correction ensures accurate citation and referencing for scientific research. This is vital for maintaining the integrity of the scientific record.

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Last Updated: Jun 18, 2025

Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior

Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior

Published on: April 16, 2014

Movement Retraining using Real-time Feedback of Performance

Movement Retraining using Real-time Feedback of Performance

Published on: January 17, 2013

Haptic/Graphic Rehabilitation: Integrating a Robot into a Virtual Environment Library and Applying it to Stroke Therapy

Haptic/Graphic Rehabilitation: Integrating a Robot into a Virtual Environment Library and Applying it to Stroke Therapy

Published on: August 8, 2011

Area of Science:

Bibliometrics
Scientific Publishing
Scholarly Communication

Context:

Accurate citation is fundamental to scientific integrity.
Digital Object Identifiers (DOIs) are crucial for referencing.
Ensuring the accuracy of published metadata is essential for research reproducibility.

Purpose:

To correct an erroneous article DOI.
To provide the accurate DOI for the scientific record.
To facilitate correct citation and retrieval of the research.

Summary:

A correction has been issued for the article with the DOI 10.1371/journal.pone.0269297.
The previous DOI was incorrect and has been updated.
This ensures proper attribution and access to the published work.

Impact:

Improves the accuracy of scientific literature databases.
Facilitates correct citation by researchers worldwide.
Upholds the standards of scholarly communication and data integrity.