Andrew Ouellette

Last seen: Today | Attivo dal 2020

Followers: 0 Following: 0

Programming Languages:
Python, C++, C, Java, MATLAB, HTML
Spoken Languages:
English
Professional Interests:
Control Systems

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Risposto
Why is event PreUpdate and PostUpdate not triggered in ChartContainer?
Hi @Jacob-Jan Sloots, I can't give you a great answer as to why the behavior differs between ChartContainer and ComponentContai...

11 giorni fa | 0

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Issue with InputVisibility for lsimplot
Hi @Hannes The documented chart API for LSimPlot was introduced in R2024b. You will need to upgrade to that release or later to...

11 giorni fa | 0

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Unable to resolve this.scaledProject2 what causes this error?
Please see this bug report: https://www.mathworks.com/support/bugreports/3860288

11 giorni fa | 0

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Risposto
Bode plot with right half plane zero
Hi @Anindya, You are looking for the phase matching options in bodeplot, which you can interpret as "If PhaseMatchingEnabled, t...

circa 2 mesi fa | 1

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How to design controller for coupled 2 input 2 output system?
Hi @Eric, From your comments on your post, it looks like you would like to tune 2 I controllers for your MIMO system. As you've...

circa 2 mesi fa | 0

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Risposto
Errors when trying to define Design Requirements in Control System Designer
Hi @Jason, This is a bug in the product. You should be able to change the line mentioned in this error from this: Error in con...

5 mesi fa | 0

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Transimpedance Amplifier transfer function behaving differently in Matlab as well as Simulink than expected
Hello @Jayesh N, The results of lsim are as expected. The mean value will be the dc gain of the system multiplied by the mean v...

6 mesi fa | 1

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Risposto
Frequency Response Estimator - how is the frequency response computed
Hi @jacob, You can see a description of the FRE algorithms on its documenation page. Generally, using more estimation periods ...

7 mesi fa | 0

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Inheritance, abstract and constant properties.
You can approximate this behavior with Dependent properties and getter methods. classdef (Abstract) my_supr properties (De...

7 mesi fa | 0

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Frequency response estimation error
Hi @shanchang, We can't really say exactly what the issue is without all the inputs to your frestimate call- your model (mdl), ...

7 mesi fa | 0

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How to work with control system tuner/designer app with Simscape Multibody System ?
Hi @Samarasekara Muhandiramge Salila Dinendra, Your post seems to a few distinct but related questions: 1) How can I obtain a ...

7 mesi fa | 0

Risposto
How to access GriddedLPVSS data at different scheduling parameters?
Hi Ali, You can sample your LPV systems using psample. SSArray = rss(36,2,2,6); % random 2x2x6 ss array s = struct( ... ...

8 mesi fa | 0

Risposto
How can I make the Nichols chart background grid more prominent when using Nicholsplot? (Too faint.)
Hi Charles, Starting in R2024b, the nicholsplot function returns a chart object with a documented API. You can see the properti...

10 mesi fa | 0

Risposto
Bodeplot with XLim option does not rescale y-axis in R2024b
Hello Tor, This is a side effect of the update to charts in R2024b. The chart's Y limits are no longer linked to its X limits. ...

11 mesi fa | 0

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Risposto
Change marker colour of pzplot
Hi Jan, Starting in 24b, we introduced new chart and response objects for pzplot(). Each model you input to pzplot() will gene...

11 mesi fa | 0

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Risposto
MATLAB R2024 Rb
Hi Shahin, 2 notes: 1) In R2024b as of update 2, rlocusplot() generates an incorrect response for improper models. This bug wi...

circa un anno fa | 0

Risposto
Simulating the impulse response of a higher order filter.
Hello, You are encountering this behavior because your cascaded system is poorly conditioned numerically. Hopefully this is not...

circa un anno fa | 0

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How can I set linewidth directly in bode command?
For releases prior to R2024b, see Sid's answer. Starting in R2024b, you can set the line width using the chart API. sys = tf(4,...

circa un anno fa | 1

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Risposto
Why the peak values are evidently different under the impulse function to a second order function with zero damping?
Hello, You can use the impulseplot() syntax of providing a final time to have MATLAB automatically choose a resolution for your...

circa un anno fa | 0

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Adding plots to an existing root locus plot
Hello, Design requirements (constraints) for damping ratios and natural frequencies in root locus charts is only available with...

circa un anno fa | 0

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How do I show characteristics from my root locus figure?
Hello, There are two methods to enable characteristic visibility in Control System Toolbox charts. 1) After creating the chart...

circa un anno fa | 0

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Matlab plots step response vs timestep number instead of time in seconds
You should use the "stepplot" function. s = tf('s'); %Laplace variable t = 0:0.01:10; %time vector start, dt , end K = 1; ...

oltre un anno fa | 0

Risposto
Graphics Incompatibilities in Control System Toolbox between R2024a and R2024b
Hello, You can achieve most of this behavior by interacting with the new chart API. Give the following a go: A1 = 1; wp1 = ...

oltre un anno fa | 0

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Risposto
Automatic method that returns the best combination of the coefficients of the polynomial with the lowest RSS value
Hello, You can use the "polyfit" function with n=2 to get the parabola of best fit for your data: https://www.mathworks.com/he...

circa 3 anni fa | 0

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issues solving two interdependent optimization problems with nested functions
Hello, From your description, it sounds like you would like to solve a contrained optimization problem. This is, you would like...

circa 3 anni fa | 0

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Collision detection and solving of a spherical ball in a cylindrical boundary
Hi Victor, You can detect a collision between the ball and the cylinder if the distance between the center of the ball and the ...

circa 3 anni fa | 0

Risposto
Gain/phase margin calculated relative to -540.
Hi Jaco-Louis, From the documentation page for margin: https://www.mathworks.com/help/control/ref/lti.margin.html the smalles...

circa 3 anni fa | 0

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Risposto
How to load a trained classifier model inside Simulink MATLAB function in MATLAB 2015a?
Hi Roya, As you have just discovered, there are a few restrictions on the MATLAB Function block that are not present in the MAT...

circa 3 anni fa | 1

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Risposto
Interpolation of directional angle between multiple coordinates
Hello, You can perform 2D interpolation by using the interp2 function: https://www.mathworks.com/help/matlab/ref/interp2.html ...

circa 3 anni fa | 0

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Is there a good way to validate that all inputs to a function have compatible sizes when using a (Repeating) arguments block?
Hi Matthew, I was able to achieve the behavior you desire by looping through the variable arguments and passing the argument nu...

circa 3 anni fa | 0

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