#### tobby

##### Junior Member level 1

**system identification with volterra series matlab**

Hi everyone

Is there anyone who know sth about how to find the transfer function of a nonlinear system(valve amplifier)?

As I know that if it's a linear system, we will just input a white noise as random as possible... Will this apply to nonlinear system?

I am thinking about using matlab to play a wave file as input and record the output of the nonlinear system to get the transfer function... Can anyone give me some tips/clues?

Regards

Tobby