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How to calculate the filter order of given specification ??
Harper · Jan 25, 2021 · matlab , signal , signal processing

Hi, i designed a filter using :   d1=designfilt('lowpassfir','PassbandFrequency',0.45,'StopbandFrequency',0.5,'PassbandRipple',3,'StopbandAttenuation',60,'DesignMethod','equirippl…

error in returning widths over iterated findpeaks
Brianna · Jan 25, 2021 · matlab , signal , signal processing , matrix

Hi, I am trying to use findpeaks over a matrix, x, column by column. I am using a for loop as below:   for k=1:size(x,2) [P{k},locs{k},widths,proms{k}]=findpeaks(x(:,k)) end Every…

fft dim parameter when ndims(x) > 2
Genesis · Jan 19, 2021 · matlab , signal , signal processing

fft dim shows how dim parameter is used for multidimensional  signals of ndims(X) = 2 When ndims(X) > 2 how is it used? (I cannot use fftn here.)…

How to calculate period of signal with matlab
Teagan · Jan 19, 2021 · matlab , signal , signal processing

Hi , I have the signal x2(t)=|cos(10*pi*t)|.How can i calculate its period with matlab?I am new  matlab so each help will be usefull…

FFT of Downsampled Signal
Oliviawilliams02 · Jan 19, 2021 · matlab , signal , signal processing

I have an aperoidic signal that is being sampled at a very high frequency, 3.125 MHz. The signal is sampled for 8 minutes, leaving me with a very large dataset to process (1.3E9 sa…

problem in plotting fft for set of samples
Timothy · Jan 19, 2021 · matlab , signal , signal processing , plot , plotting

i am trying to plot FFT  samples vs freq.. bt not getting the exact peak at expected frequency. i have attached the samples in excel sheet,..plz can some one help me and guide me …

Need Help about FFT and STFT
Mikaela_sf · Jan 19, 2021 · matlab , signal , signal processing

I got a large amount of data, more than 5mb, so I can’t upload it. I would like to ask, my data is three xyz three-axis data collected from acceleratoter and it based on time, th…

Remove peaks below a threshold using findpeaks function
Diego · Jan 15, 2021 · matlab , signal , signal processing , findpeaks , indices

I know this topic has been discussed before to some extent, but I can't seem to figure out a way to do the following. I am finding peaks in my kernel distribution function which is…

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