MATLAB QUESTIONS & EXPERT ANSWERS

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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...

Simulink Singular Value Decomposition (SVD) Bug?
Teagan - 2021-03-05

I have a matrix that when passed through a SVD  simulink block would return a V matrix (specifically, the last column is the negative of the other) t...

How can I use cross-correlation as a tool to align two signals in MATLAB?
Maximiliano - 2021-03-05

I have two signals that have a similar behavior but are not aligned. I would like to use cross-correlation to align them.  ...

How do I use the Signal Processing Toolbox to filter my data?
willison_ad - 2021-03-04

I would like to know how to use the Signal Processing Toolbox to filter my data.  ...

Autocorrelation Matrix from a vector
Harper - 2021-03-04

I have observations of a noisy channel and i form a vector y of length n from those observations. I need to compute the autocorrelation  matrix from ...

Removing noise from a sine wave
Mikaela_sf - 2021-03-04

Hello, I have two sets of measurement data (sine wave of 10 = Hz and fs = 2048 Hz) with lots of noise. I tried to filter them using a butterworth lowp...

How to Downsample image in both Horizontal and Vertical Direction
Delilah - 2021-03-04

Any one help me how to downsample image in horizontal direction and vertical direction.   i used downsample(image,4), it will down sample image in bo...

Xeon E5-2643 vs E5-2650; cores and cache vs freqency
Lucille - 2021-03-04

Would one recommend two 2.0GHz processors with 8 cores and 20MB cache each or two 3.3GHz processors with 4 cores and 10MB cache? I'm running matlab wi...

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