- #1
arpwpagr
- 7
- 0
Hi all,
I have input force data and output acceleration data to calculate frequency response functions. As these data are in time domain I converted it to frequency domain using fft function in MATLAB. This is the procedure I used.
As an example Let's think, Force matrix =a
Acceleration matrix= b
c=fft2(a)./fft(b);
d=real(c);
There are 24 sensors in the system and I used all data once by using a matrix. I am not sure whether this is correct or not. Should I use one data at once or matrix is correct. Can anyone help me? It is a great help for me.
Thank you!
I have input force data and output acceleration data to calculate frequency response functions. As these data are in time domain I converted it to frequency domain using fft function in MATLAB. This is the procedure I used.
As an example Let's think, Force matrix =a
Acceleration matrix= b
c=fft2(a)./fft(b);
d=real(c);
There are 24 sensors in the system and I used all data once by using a matrix. I am not sure whether this is correct or not. Should I use one data at once or matrix is correct. Can anyone help me? It is a great help for me.
Thank you!