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find local max in time window
Jessica · Jan 27, 2021 · matlab , signal , signal processing , digital image proc...

I'm  trying to find the local max in time window , i know that I have to define part from the signal then use the findpeaks built in function then take the max value of it.   % c…

How to deal with this error??
Gianna · Jan 27, 2021 · matlab , signal , signal processing , undefined function

A model of the surface EMG signal is created by filtering a white gaussian noise, using a shaping filter H(f). this filter has low cut-off freq=60hz and high cut-off freq=120hz. th…

Using cellfun for multidimensional cell
Ottosaul · Jan 27, 2021 · matlab , signal , signal processing , array , cell array

I have a cell of this type:   200×3 cell array [1×60000 double] [ -0.9365] [154.9924] [1×60000 double] [ 10.8080] [297.1132] [1×60000 double] [ 15.5680] [121.3598] Etc. I want…

FindPeaks() of a 1024 x 116 Matrix
Ximena · Jan 27, 2021 · matlab , signal , signal processing , findpeaks

I have a matrix that I read into MatLab that is 116 spectra (columns) each being 1024 elements (rows). Each spectrum has a peak and I'm looking to determine the following informati…

question about the signal smoothing example
Addilynn · Jan 25, 2021 · matlab , signal , signal processing

Hello,   I have a question about the  signal smoothing example given in the documentation of Matlab.   load bostemp   days = (1:31*24)/24; plot(days, tempC) axis tight ylabel('…

Issue in finding Power Spectral Density of fitted curve
ishitaisha6840 · Jan 25, 2021 · matlab , signal , signal processing

I have a respiration signal which is sinusoidal in shape. I have fitted the curve using Fourier series. Since the fitted curve is in cfit format, I am not able to find it's Power S…

Sum five elements before a specific number
Kathryn · Jan 25, 2021 · matlab , signal , signal processing , average , average five eleme... , find peaks

Hi, I used "findpeaks" to find the IDs of all the peaks in my data. I need for each peak to find the average of five elements before it. the problem is that some of the peaks don't…

Trying to make a chirp (sweep) in matlab with random frequency
Christian · Jan 25, 2021 · matlab , signal , signal processing , chirp sweep frequency

Hi guys!   I have been trying to make a chirp function in which the frequency is changing randomly through the time   my parameters are this t1=0 t2=1 f1=0 f2=60   I have tried …

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