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From: atomize Shabbir on 6 May 2010 04:55
Hi Everyone,

I am kinda buffled by FFT.

I am working on a robotic project. I have to obtain the frequency response of the mechanical vibration. I have the data from the accelerometer in terms of voltages which are continuous time signals. These signals are digital as I extracted the data by using the digital oscilloscope. There is a dc offset of +2.5V

I was wondering if I can directly input the above data into MATLAB and obtain the frequency response using FFT function. Do I have to sample the data before performing FFT?

Awaiting your replies.

Thanks.

Regards.
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