Mathieu NOE
Hutchinson
Engineer - mechanices /ekectronics / signal processing
Average matlab user for 20 years now.
Professional Interests: signal processing, adaptive control, noise and vibration processing
Statistics
RANK
75
of 239 174
REPUTATION
1 602
CONTRIBUTIONS
1 Question
644 Answers
ANSWER ACCEPTANCE
100.0%
VOTES RECEIVED
126
RANK
of 16 804
REPUTATION
N/A
AVERAGE RATING
0.00
CONTRIBUTIONS
0 Files
DOWNLOADS
0
ALL TIME DOWNLOADS
0
CONTRIBUTIONS
0 Posts
CONTRIBUTIONS
0 Public Channels
AVERAGE RATING
CONTRIBUTIONS
0 Highlights
AVERAGE NO. OF LIKES
Answer 10 questions that were unanswered for more than 30 days
Awarded to Mathieu NOE on 08 Jul 2021
Contribute at least one answer each month for 6 consecutive months
Awarded to Mathieu NOE on 02 Apr 2021
Accept 1 answer given by other contributors
Awarded to Mathieu NOE on 18 Mar 2021
100 of your answers have been accepted
Awarded to Mathieu NOE on 17 Dec 2020
Provide your first answer ever to someone else's question
Awarded to Mathieu NOE on 09 Jun 2020
Download any 10 unique submissions
Awarded to Mathieu NOE on 01 May 2020
Publish your first review
Awarded to Mathieu NOE on 09 Oct 2019
Content Feed
Remove gravity component from accelerometer data
hello Francesco the simplest method is to simply remove the mean value of your signal. another approach is to use a high pass...
3 dagar ago | 0
| accepted
Using writetable in a for loop to create new txt/csv files for each step
hello seems you were one inch or even less to a solution . Now it was a bit unclear to me if you wanted to save the new tabl...
3 dagar ago | 1
How can I plot the mid-curve or interpolant between several curves?
Hello Leonardo this is my suggestion; to be able to do math between different sets of data (like doing the average) you have f...
7 dagar ago | 1
| accepted
Loading multiple mat files and plot them right
hello based on the first post you can do that : tested with dummy data ( commented lines) of different size ... so it works w...
7 dagar ago | 0
| accepted
How to alter data (multiply) from all the columns of multiple text files in a folder
hello this is my suggestion ... the natural sorting order of the files may not be critical here, but it may be helpful anoth...
7 dagar ago | 1
| accepted
How can I plot a data set after applying cascaded filter?
hello Soeun I did a couple of modifications / corrections in your code please note that for the notch filter , the low and hi...
7 dagar ago | 0
How to visualize time frequency information of time series signal using continuous wavelet transform
hello I used this FEX submission as I don't have the Wavelet Toolbox cmccrimm/Continuous-Wavelet-Transform - File Exchange -...
7 dagar ago | 0
How to have the input files labels in the output files
hello my 2 cents suggestion : imgFolderStokes = fullfile('Data/Stokes_Parameters/'); imgStokes = imageDatastore(imgFolderSt...
7 dagar ago | 0
How to compute poles-zeros using matlab?
hello I hope the coefficient in b and a are correct (then the zeros and poles are inside the unit circle ) , because the first...
7 dagar ago | 0
Integrate Acceleration to velocity, wrong plot
so finally... try this / adapt it to your own needs . I can further help you if needed FYI : this code does two integrations...
10 dagar ago | 0
Differencing Across 2 Different Sized Matrices
hello I think this works fine with a single loop : % dummy data Matrix_1 = randn(1440,721,480); Matrix_2 = randn(1440,721,...
11 dagar ago | 0
| accepted
How to detect point before a positive ramp
hello I have combined threshold crossing detection with second order derivative this is the result on a noisy pulse train .....
11 dagar ago | 0
| accepted
How to overcome reaching NaN in trying to write Secant Method?
hello there is one point that you missed , is to break / stop the iteration as soon as the variation of x becomes lower than a...
12 dagar ago | 0
| accepted
How to read in a .txt and arrange the data into a scheme?
hello this is the best solution (IMO) : it will generate a table with identified variables names you can easily access : ...
13 dagar ago | 0
FIltered signal not matching with the original signal.
hello I see that you are doing a detrend action on your data. This will remove the dc (mean) value of the signal , so no surpr...
13 dagar ago | 0
| accepted
calculate speed and distance from gear wheel pulses sensor
hello Frederico Had to guess the sampling rate as it's not defined in your post... so I estimated it around 100 kHz. I did a...
13 dagar ago | 0
| accepted
Inactivate PID controller for 3 seconds
hello simply add a switch block at the input side of the PID the first signal (input) of the switch is zero, the second is t...
14 dagar ago | 1
| accepted
How can I increase the size of an array that is already in the workspace with increments of 0.1?
so this is the status now : 1/ I believe I fixed a couple of issues at the end of the main code : now both linear and spline...
16 dagar ago | 0
| accepted
How can I increase the size of an array that is already in the workspace with increments of 0.1?
so , maybe now I acn provide an answer.... had a couple of questions to myself - and tried to solve it this way : now we hav...
16 dagar ago | 0
Signal smoothing for logarithmic timescale
hello you can smooth data even in log spacing a demo code is provided below. I kept the amount of samples low , so the smooth...
17 dagar ago | 0
| accepted
How to use bandpass filter.
Hello no bugs or special issues , but minor improvements I prefer to use the IIR filters (like butter) used with filtfilt ...
18 dagar ago | 1
| accepted
CASE CLOSED. THANKS YOU
hello Nabil the code below implements low and high pass filtering hope it helps T = readtable('Book1.xlsx'); time = ...
18 dagar ago | 1
| accepted
Extrapolation: How do I extrapolate a curve with minimum error.
hello my suggestion for exponential curve fitting and extrapolation (adjust the new time vector t2 according to your needs) ...
19 dagar ago | 0
| accepted
Resultant of two files
hello again in the mean time I have worked for you ... this is a code to load the data for all sections (variables) you get th...
19 dagar ago | 0
replace cell content of excel from matlab script
hello this is my suggestion - convert your data (numeric double) to cell array first and more robust if statement as numeric...
19 dagar ago | 0
| accepted
repeating step signal in real time with a hold value of 5 seconds
hello my 2 cents suggestion... adapt sampling frequency to your own needs Fs = 100; dt = 1/Fs; duration = 5 ; nb_steps = 1...
19 dagar ago | 0
How do I obtain the aligned sequence using distance warping
hello my suggestion below : % Example 3: % Align handwriting samples along the x-axis. load blockletterex %dtw(MATLAB1...
20 dagar ago | 0
| accepted
how can i animate the line using for loop and if statement
hello you can do much simpler , as x and y are fully defined in the initialization section , then you only have to loop - four...
20 dagar ago | 1
| accepted
I'm calculating the harmonics of a time series. How do I determine the significance of the harmonic fit onto the data?
hello why not simply compute the mean squared error between your fitted data and the input data I also tried including the se...
21 dagar ago | 0
| accepted
Find the difference between signal values
hello if you export the data to matlab array you can use this code; it has the benefit to use linear interpolation between sam...
24 dagar ago | 0
| accepted
