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how do I implement a real time FFT in simulink?
hello why not simply use a counter to do the job ? (as we deal with a sinusoidal wave) you need one counter for the frequen...

mehr als ein Jahr vor | 0

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How to calculate only several frequency with FFT ?
hello try this DFT on a specified frequency - File Exchange - MATLAB Central

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I want to use a low-pass filter to cut off frequencies above the cutoff frequency.
hello I notice that the cutoff freq is very low compared to fs , so maybe lowpass has a numerical problem when the normalized ...

mehr als ein Jahr vor | 0

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Average Curvature of a Closed 3D Surface
that's me again ! :) so a bit for my own fun , I tried a few things here I decided I wanted to define the intersection of yo...

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Confine contour lines to region defined by data
hello sorry for not putting alot of comments, but I am in a hurry.... here 's my first suggestion, maybe a little dirty but ...

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Fit countours to shape
arrgh - I don't have time to finish my work - it's getting very late here ... and I am not an expert in image processing also ...

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why envelope by hilbert increasing in tail of signal?
hello again here 3 suggestions appart from the traditionnal hilbert transform see the 2 functions in attachment t = 0:0.0...

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fittting data using nonlinear optimization fminsearch
hello seems to me the data looks like a traditionnal exp decaying pulse - I don't undertsand how you can have the 1/t² ampli...

fast 2 Jahre vor | 0

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how to plot graph as file attached.
hello you can read your header file with any matlab function that read ascii / txt files . Here I opted for readlines . Still ...

fast 2 Jahre vor | 0

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Frequency Response Function and FFT for Modal Analysis
hello yes I a coming very late in the show but maybe there is still a need for a better code you can improve the FRF estimat...

fast 2 Jahre vor | 0

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How to find distance in a for loop using d=distance
hello the loop must stop one index value before the end also I would suggest you index the d value so you get (numel(TrackLa...

fast 2 Jahre vor | 1

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I have created a depth map using a time of flight sensor by measuring the distances to create a depth map I am not sure if it is correct.
hello the code seems correct but the look of the 3D plot seems 'maybe) questionnable . I had a feeling that the Z values belo...

fast 2 Jahre vor | 0

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How can I obtain accurate and high-quality FRF results?
hello again I made very few changes to the code - I think that you cannot get any better results if you use only one hit data....

fast 2 Jahre vor | 1

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Put arrow and its value in a plot
hello this is a simple example , based on the fex submission : arrow - File Exchange - MATLAB Central load('data_ask_MLD'...

fast 2 Jahre vor | 0

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LQI controller is weirdly slow in response and doesn't always reach a goal on plant
hello again used a simplified version of your model and applied simple PID control (easier for real time conversion) : % Def...

fast 2 Jahre vor | 1

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rms of noise signal
hello to get the correct result, you need two uncorrelated random generators. here you are using the same seed , so the two ou...

fast 2 Jahre vor | 0

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Sinewave with log frequency - Shows the wrong frequency content
hello you have to compute the angle increment vs time then take the sine of that angle (or, in other words, do the integral of...

fast 2 Jahre vor | 0

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improve fit compared to R
hello I interpreted your question as how to fit a U shaped function to your data , so at the end I opted for a parabola , is t...

fast 2 Jahre vor | 0

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Sampling time of matlab figure data
hello to retrieve data from a figure , you can do it by two ways : for recent releases : openfig('data points.fig'); set(...

fast 2 Jahre vor | 0

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Interpolate pairs of values from matrix
hello you can surely get the required x , y data for a given z value ; use contour for that purpose as shown in code example b...

fast 2 Jahre vor | 0

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how to extract (x) coordinates and (y) coordinates of the top boundary from bwimage
hello this is a solution that does not even require the Image processing toolbox of course I had to do a bit of gym to conver...

fast 2 Jahre vor | 0

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Trouble in reading .tdms file
hello No toolbox required here - I simply used this Fex submission (files are attached if you prefer the fast way) ConvertTD...

fast 2 Jahre vor | 0

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Plot Fourier Transform (FFT) Interpolation Model into future
hello Giacomo first I corrected some minor bugs (before we dig into more technical stuff) A is an amplitude so you should t...

fast 2 Jahre vor | 0

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Colormap generated using the information of different arrays
hello Richard again you were pretty close to the solution , but to actually make the transparency work you should replace this...

fast 2 Jahre vor | 1

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comment savoir si un dossier est vide
hello The dir structure will return only the two directories entries '.' and '..'. So, check length(d)==2, if that is the cas...

fast 2 Jahre vor | 0

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Moving window percentile computation using Conv
hello maybe this ? NB it does not need conv but requires Statistics and Machine Learning Toolbox % dummy data t= 0:0.25:100;...

fast 2 Jahre vor | 0

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Why does the signal become thicker after noise reduction and the dots on both sides diverge?
hello again you can already get decent results with smoothdata , other smoothing techniques based on splines or NN could also ...

fast 2 Jahre vor | 0

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extracting overlapping portions of 2 similar tracks
hello you could do something like this ... I have manually checked which track is the longest and the code works here because ...

etwa 2 Jahre vor | 0

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Matlab code to find the Wave height
hello again I am by no means an image processing expert, but sometimes I go outside my comfort zone ... hopefully my suggestion...

etwa 2 Jahre vor | 0

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how to separate the real and imaginary parts inside a cell
Maybe this ? % create dummy data n = 32; for k = 1:2 cellarray{k} = k*ones(n,n)*(1+1i*5); end % process it for ...

etwa 2 Jahre vor | 0