Ratio Control and Scaled Signal Calculations
15 min
Intermediate
Article / Blog
Application
When and how to use Ratio Control and use Scaled Signals
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Two Tank System: C MEX-File Modeling of Time-Continuous SISO System
Intermediate
Software
Demonstration
This MATLAB example shows how to perform IDNLGREY modeling based on C MEX model files. It uses a simple system where nonlinear state space modeling really pays off.
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Use First-Principles Modeling to Get FOPDT Coefficient Values
30 min
Intermediate
Article / Blog
Application
Conventionally, we obtain model coefficient values by open-loop step-testing of the process; but this creates undesirable process upsets, and only reveals the local process behavior. This...
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Feedforward Control
Intermediate
Article / Blog
Application
When a Ratio Control strategy takes action too soon, use Feedforward to temper the dynamics. When a disturbance can be measured, but would not be a ratio of the control output use...
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Learning Dynamic Systems & Control Engineering with a Video Game
Intermediate
Video
Demonstration
Engineering Students at Northern Illinois University are learning one of their core subjects, Dynamic Systems & Control, with the aid of a video game.
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Experimental evaluation of feedforward tuning rules
Advanced
Peer Reviewed Paper
Demonstration
This paper presents a practical comparison for some of the most relevant tuning rules for feedforward compensators that have been published in the recent years. The work is focused on the...
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Why the Riccati Equation Is important for LQR Control
14 min
Intermediate
Video
Theory
This Tech Talk looks at an optimal controller called linear quadratic regulator, or LQR, and shows why the Riccati equation plays such an important role in solving it efficiently. The talk...
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MATLAB Command: resid
Intermediate
Article / Blog
Application
This MATLAB command is part of the system identification toolbox and provides a way to compute and test residuals.
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Multifunction Phased Array Radar (MPAR) for Aircraft and Weather Surveillanc...
Intermediate
Peer Reviewed Paper
Application
MIT Lincoln Laboratory and M/A-COM are jointly conducting a technology demonstration of affordable Multifunction Phased Array Radar (MPAR) technology for Next Generation air traffic control...
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Min IAE Tuning
15 min
Intermediate
Article / Blog
Application
Procedure and Commentary on tuning for minimum Integral of the Absolute Error
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Wind Tunnel Corrections and Data Reduction
171 min
Advanced
Video
Theory
This is the second of our 3 part series on wind tunnel testing. In this video, we discuss 11 different corrections and data reduction processes that are applied to raw wind tunnel data to...
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MATLAB scripts for "Nonlinear System Identification | System Identification,...
Intermediate
Software
Demonstration
This Github repo contains the data files and MATLAB scripts that were used in "Nonlinear System Identification | System Identification, Part 3".
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Automotive Radar MATLAB Documentation and Examples
Intermediate
Article / Blog
Theory
MATLAB documentation and examples for probabilistic and physics-based radar sensor models, simulation of MIMO antennas, waveforms, I/Q radar signals, micro-Doppler signatures, detections...
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Averaging Methods in Nonlinear Dynamical Systems
Intermediate
Book
Theory
Perturbation theory and in particular normal form theory has shown strong growth during the last decades. So it is not surprising that the authors have presented an extensive revision of the...
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MATLAB Example: Train Multiple Agents for Area Coverage
Intermediate
Example
Application
This example demonstrates a multi-agent collaborative-competitive task in which you train three proximal policy optimization (PPO) agents to explore all areas within a grid-world environment...
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System Identification: Full-State Models with Control
10 min
Intermediate
Video
Theory
This lecture provides an overview of modern data-driven regression methods for linear and nonlinear system identification, based on the dynamic mode decomposition (DMD), Koopman theory, and...
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Interactive Tool for Loop Shaping understanding based on PID control
Intermediate
App
Application
Loop shaping is a design method where it is attempted to choose a controller such that the loop transfer function obtains the desired shape. In this module the loop transfer function is...
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Understanding Valve Flow Characteristics
20 min
Intermediate
Article / Blog
Application
The response of flow rate through a control valve depends on the friction losses in the piping in which it is installed as well as the controller signal. The installed characteristic (a...
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Decoding a Laplace Representation of a Controller
20 min
Intermediate
Article / Blog
Application
A how to relate the Laplace notation to the PID controller variation and features
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First Order Plus Dead Time Tuning App for PI Controllers
Intermediate
App
Application
The FOPTD_PI Tool is a Matlab-Interactive tuning tool of PI controllers for First Order PlusTime Delay processes. It can be used to teach basic control concepts based on a set of PI tuning...
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Cascade Control
15 min
Intermediate
Article / Blog
Application
When and how to use Cascade Control
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MATLAB Documentation page: nlarx command
Intermediate
Article / Blog
Application
This is the Mathworks documentation page for the nlarx MATLAB command.
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Dynamic Mode Decomposition (Overview)
18 min
Intermediate
Video
Theory
In this video, we introduce the dynamic mode decomposition (DMD), a recent technique to extract spatio-temporal coherent structures directly from high-dimensional data. DMD has been widely...
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PID Controller Variations
20 min
Intermediate
Article / Blog
Application
It is important to understand the variations on the PID algorithm when tuning and when choosing a version that is consistent within your use context. Unfortunately, there are many names for...
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Gain Scheduling (Pre-programmed Controller Parameter Adjustment)
Intermediate
Article / Blog
Application
Process gain and time-constants change with operating flow rate, tank levels, temperatures, etc. This often requires re-tuning of the controller coefficient values. However, once done...
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