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Mathieu NOE


Last seen: 8日 前 2015 年からアクティブ

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Engineer - mechanics /electronics / signal processing Average matlab user for 20 years now. Professional Interests: signal processing, adaptive control, noise and vibration control

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Up Chirp and Down Chirp Generation in a Single plot
hello well there is the documentation related to the chirp funtion, have you looked here ? chirp - Swept-frequency cosine - MA...

7日 前 | 0

回答済み
Calculation of prinicple radii of curvature for given mathematical equation
hello see Fex : Curvature of a 1D curve in a 2D or 3D space - File Exchange - MATLAB Central once you have generated your x, ...

8日 前 | 0

| 採用済み

回答済み
RC circuit and its frequency response
still don't know if your method is valid , so I suggest mine (simply uses the same equations as a classical DFT) it's not 100%...

15日 前 | 0

回答済み
How do I choose the poles and zeros in order to calculate my TF from input & output data?
Hello @Olga my code is more oriented towards electronic filter's or mechanical system identification (with either chirp or rand...

24日 前 | 3

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How do I choose the poles and zeros in order to calculate my TF from input & output data?
hello there are those functions available to find minimal order realization for specific filters TF buttord – Minimum order ...

28日 前 | 1

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Removing ghost rings on CCD reading?
made a quick and dirty code just to see how far I could go without the Image procesing Tbx well, you may find that usefull or n...

約2ヶ月 前 | 0

回答済み
How do I turn off plot zooming when mouse is moved?
hello funny, I don't have this effect on my R2025a . Is it a matlab issue or a problem with your mouse ? either I use the alre...

約2ヶ月 前 | 0

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How can I make use of the full window size when zooming into very tall images?
hello you can try this : % Example data im=imread('cameraman.tif'); imtall=repmat(im,11,1); % size 2816 by 256 ims...

2ヶ月 前 | 0

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Export plot with margins very close to edges
hello there are different options to modify the subplots margins : How do I decrease the margins around the subplots in my f...

2ヶ月 前 | 0

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回答済み
FIR, band pass, band stop, high pass
hello your code is correct but gives some warnings : Warning: Matrix is close to singular or badly scaled. Results m...

2ヶ月 前 | 0

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回答済み
Help with lumping of fatigue data
hello again seems to me you can make the code simpler , no need for for loops I still have a doubt about the omega units ? a...

3ヶ月 前 | 0

回答済み
PID control simulation code improvement
hello minor suggestions - in my view , the code is supposed to reflect a real time implementation so data are only known up to...

3ヶ月 前 | 0

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回答済み
msgbox body text does not show up
seems to me now you have to use strings (double quote) and no more char array this works for me (R2025a) h = msgbox("Calcula...

3ヶ月 前 | 0

回答済み
Why does having only one row in table, break dot indexing?
hello why not simply ask : size(master_cell{i,9}) this works for all cases (see last iteration) demo : % create dummy mast...

3ヶ月 前 | 0

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回答済み
comment j'ecris et je delcare une matrice
Creating Matrices and Arrays - MATLAB & Simulink

3ヶ月 前 | 0

回答済み
speeding up mpg video frame reading
seems to me the simplest change to gain speed is to remove this line : clear vidFrame I could get a speed increase of about 60%...

3ヶ月 前 | 0

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How to design for decrement counter which should decrement from 500 to 0 using simulink blocks
hello simply make the difference between a constant (= 500) and a standard (rising) counter (0 to 500) the two blocks are t...

3ヶ月 前 | 1

回答済み
using MATLAB to find area of flourescent region
hello this is a quick and dirty (potential) solution : that does not need the Image P Tbx generated by a non expert in th...

3ヶ月 前 | 0

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Where to find image_ref.pdf file ?
I could find it here : Image Processing Toolbox Reference

3ヶ月 前 | 0

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pcolor plot: how to scale the smoothing differently in x and y directions
hello maybe this - I opted to overlay the two peaks on the center position (which I admit is not exactly what was asked)... b...

4ヶ月 前 | 0

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produce the figure similar to this one in Matlab
hello maybe this ? (a quick and dirty attempt ) the plot rendering may differ on your PC vs here below : groups = 3; % dat...

4ヶ月 前 | 0

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Is there a way to extract the gray background from the image and just to keep the rainbow
hello here a quick answer - as I understand you want to extract the rainbow area from the entire picture . You can do a bounda...

4ヶ月 前 | 0

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回答済み
Bode plot with right half plane zero
hello you can do this way : BTW , you pulstaion vector was huge and there is a better approach for Bode plots (as the x axis...

4ヶ月 前 | 0

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M-File Errors when extracting a NetCDF data
hello I tested your code with another nc file I have on my pc and there seems to be no issue as soon as the m file and the nc ...

4ヶ月 前 | 0

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Solved question video analysis
hello maybe this ? NB, this is a no Image Processing Tbx solution (as I don't have it) but I wanted to give it a try for the...

4ヶ月 前 | 0

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help with a heat map
hello there are a couple of interesting Fex submission : special heatmap - File Exchange - MATLAB Central Matrix Visualizat...

4ヶ月 前 | 0

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simulink time stop error?
I believe you should change the landing test force_b >0 should be more like : force_b <0.1 otherwise the output is true fo...

4ヶ月 前 | 0

回答済み
I'm trying to come up with the workspace for my 3RRR pkm via discretization method. Solid edge is used to validate and code seems to be generating an overestimated workspace
hello I tried to reduce the error by using a more precise area computation aproach using polyarea I had to modify a bit your ...

4ヶ月 前 | 0

回答済み
Making a table from data using rec
hello here you are what has changed q must be converted from table to array - use table2array for loop index needed a fi...

4ヶ月 前 | 0

回答済み
Function output not displayed on scope.
hello again assuming dt = 0.02 is your application sampling rate and this is what we use in Simulink solver options (discrete ...

4ヶ月 前 | 0

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