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Thread Subject:
frf calculation: tfestimate vs fft ratio

Subject: frf calculation: tfestimate vs fft ratio

From: pietro

Date: 11 Dec, 2010 11:41:05

Message: 1 of 1

Hello,

I have tried to calculate the frf response function of a 1 DOF system mechanical system, using the fft ratio between input and output accelerations and using tfestimate. I got much different results, in particular the two magnitude has 100 times higher using fft ratio. Why?

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