Hi all,
I have used a signal to carry out an FFT analysis using DIAdem. I have used the following options available in DIAdem:
FFT (One Time Signal)
Windows type: Rectangle
FFT functions: Amplitude
Type of amplitude: Power spectrum
Third/Octave = No
Average amplitudes: No averaging.
I have attached the raw data in an Excel file. In addition, I have attached an image indicating the amplitude versus time plotted in DIAdem on the top. On the left hand side the data plotted using another software, whereas on the right hand side the data are plotted to DIADEM. The frequency on the x-axis is ok, but the amplitude on the y-axis is not the same. I would like to ask if there is any way that I can get the raw signal of the amplitude using DIAdem, as I think this is the normalisation ?
Thanks,
Pepis21