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Vilnis Liepins


Last seen: Today |  Active since 2013

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Extended DFT
Program EDFT produce high-resolution N-point DFT for N greater than the length of data vector X.

6 dagen ago | 24 downloads |

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Answered
plomb ifft sequence??? please help me!!!!
I suggest to try Extended DFT available on fileexchange https://www.mathworks.com/matlabcentral/fileexchange/11020-extended-dft ...

25 dagen ago | 0

Answered
Adjoint / inverse nufft
Hi Victor, You can improve the inverse of NUFFT if take into account that the length of signal in time is 700.5 sec and choose,...

ongeveer een jaar ago | 0

| accepted

Answered
Use nufft in stft - Non-uniform sampling for use in spectrogram for a time-series analysis
Hi mack, As an alternative approach to 'nufft' you can try 'edft' function available on fileexchange Extended DFT - File Excha...

bijna 2 jaar ago | 0

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MATLAB Fouriertransform with nunequidistant values
You can apply File Exchange program 'nedft' available on <https://se.mathworks.com/matlabcentral/fileexchange/11020-extended-dft...

meer dan 6 jaar ago | 0

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Hi. Could you give me some advice on how to import some txt data in MAtlab and perform FFT on the data?
Hi Angelo, If the above recommendations do not help you to get the DFT of your data then you could explore one more option - ...

meer dan 6 jaar ago | 0

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Could you please let me know how to write code to draw the power spectral density (PSD) vs frequency for my data? Thanks.
Hi Ray, Your data are: amplitude=[0.707 0.694 0.703 0.699 0.694 0.686 0.686 0.706 0.713 0.719 0.704 0.69 0.697 0.702 0.705...

meer dan 6 jaar ago | 1

| accepted

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How do I convert a time domain signal to frequency domain?
Actually they are specified in your post: >> value = [42007935 111212895 184546560 238219725 238219725 184546560 111212895 42...

meer dan 10 jaar ago | 0

Answered
How do I convert a time domain signal to frequency domain?
Hello, To convert nonuniform time domain data to frequency domain you can use Extended DFT (program NEDFT.m) available on fil...

meer dan 10 jaar ago | 0

Answered
how to extend time after fft ?
You can try edft.m on fileexchange http://www.mathworks.com/matlabcentral/fileexchange/11020-extended-dft ifft(edft(YourData,...

ongeveer 11 jaar ago | 0

| accepted