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How can I filter multiple files ?
Wyatt - 2021-03-09

I have made a filter as following   [b,a] = butter(9,.02,'low'); x=textread('noisy.out'); y=filter(b,a,x); save filtered.out y -ASCII   I have 1000 ...

Is the unit of Cxy from cpsd in decibel?
Sophia - 2021-03-08

I want to use the Signal Processing Toolbox to compute the Cross spectrum gain and phase for my sequences X and Y. I wondered the Cxy that cpsd gives ...

amplitude spectrum
Kennedy - 2021-03-08

hi, how do i plot the amplitude spectrum of speech segment with a given sampling frequency fs, a given length and known number of bits. thanis in adva...

Compute cumulative sum of a column vector without for loop
Travis - 2021-03-08

For each index of a column vector , I want to compute the sum from index to index+spacing. spacing is an integer.   My aim is not to use for-loop but...

How can I use FILTFILT function on DFILT objects in the Signal Processing Toolbox 6.12(R2009b)?
Gianna - 2021-03-08

I have created a filter using FDATOOL. When I export the filter to the workspace, it is stored as a DFILT object. When I extract the numerator and den...

Why do I receive an error "Undefined function 'cos' for input
Victoria - 2021-03-08

Why do I receive an error "Undefined function 'cos' for input arguments of type 'int32'" in Signal Processing Toolbox 6.16 (R2011b)? I have written a ...

Realignment of columns in a matrix with one (or more) values out of sync -- a "voting" algorithm?
Kennedy - 2021-03-05

I have what I think is a rather simple question. I have a three column  matrix of the times of peaks calculated from three common-time-base vectors. ...

How can I find the FFT of a time series when the samples are not equally spaced?
Farrahakhtar - 2021-03-05

I would like to find the FFT of a time series with nonuniformly spaced samples.  ...

How do I design odd ordered filters using the FIRRCOS function in Signal Processing Toolbox?
Nehemiah - 2021-03-05

I would like to design an odd ordered FIR raised cosine filter using the following code:     coefs = firrcos(255, 364e3/2, 0.4, 17.6832e6, 'rolloff'...

how to do digital filter on this EEG data
Delilah - 2021-03-05

Hi! I recently recorded an EEG  signal at 50K Hz sampling rate. The signal was band passed at 1-500Hz before it was digitalized. Now I wanted to do a...

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