Hi everybody..
i am so sorry to write this post, but i have read a lot of post about this argument and i still don't find an answer to my problem!
The point is the same: i have a DUT, and i want to plot its frequency response when the excite signal is a linear sine sweep..
In my project i generate the linear sine sweep with a AWG controlled via labview and acquire the signal with a USB device from NI!
So.. i have my stimulus signal and my response signal! I try to use a lot of .vi i find in "Audio e Vibration Toolkit" and in "Control and Design" and in "Signal Mesurement" palette but i have always the same problem: if the sine sweep i generate goes, for example, from 500 Hz to 1000 Hz the frequency response i find goes from 0 Hz to 100 Khz.. but this is impossible i want to plot just the frequency range of my sweep sine!!
If you have any example or advice it will be very appracciate.
I post a very sample .vi that rapresent a way to plot the amplitude response vs. frequency but it's just an idea: plot the ratio between the spectral power of the response and stimulus signal at all the frequencies.
Thank you
Nigeltorque
