How to get real-time live data stream from sensor and spectral analysis?
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I would like to get the real-time live data stream via a serial port (by fread) from sensor and then I want to evaluate the data for fft analysis. Currently, I am doing it by a "for loop" and for each iteration in the "for loop", I am always losing some real-time live data in the fread due to process it in the fft.
So, could you please suggest me that how can I overcome this issue without discard any data due to processing time in the fft? --Is it possible to solve this issue by matlab script or any alternative way like simulink model or data acquisition toolbox or ...? I am looking forward to hearing from you in details.
Thanks in advance.
Andrey Kiselnikov on 24 Jul 2019
Hi, fft is already multithreaded in MATLAB since 2008a
For more productive using of parallel computing, there is parallel computing toolbox https://se.mathworks.com/products/parallel-computing.html
Anyway, I assume that problem somewhere in the architecture of your system, I need more information to help you.
Andrey Kiselnikov on 27 Jul 2019
Try to read about function "drawnow" may be in will be helpful. https://www.mathworks.com/help/matlab/ref/drawnow.html
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