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matlab (out of memory) error for the fft of a long vector

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sab_sab

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Hi all,
I have 800 vectors having 765440 points of each. I need perform fft on all of those vectors and get the powers (Actually I need to plot all of those fft plots in one figure). But I am getting an OUT OF MEMORY error. Fs equals to 25600 Hz.
Power vector that I get for each vector contains 524288 points. Do you have any idea how to overcome this problem?

Thanks
 

sab_sab said:
Hi all,
I have 800 vectors having 765440 points of each. I need perform fft on all of those vectors and get the powers (Actually I need to plot all of those fft plots in one figure). But I am getting an OUT OF MEMORY error. Fs equals to 25600 Hz.
Power vector that I get for each vector contains 524288 points. Do you have any idea how to overcome this problem?

Thanks
Click to expand...

'Out of memory' errors occur when MATLAB® requests more memory from the operating system than is available.

h**p://www.mathworks.in/support/tech-notes/1100/1107.html
 

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