Inviting friends to a party Sally: Hello, William. What’re you going to do tomorrow evening? William: Tomorrow evening? . Sally: I’m inviting a few friends to my daughter’s birthday party. Would you like to join us? William: Great. That would be . !
【多选题】If a periodic signal is applied to an LTI system, which are true in the following statements. ( )
A.
The output will be periodic with the same period as the input signal.
B.
The output is not periodic.
C.
Each of the Fourier coefficients of the output is the corresponding Fourier coefficient of input multiplied by a complex number whose value is a function of the frequency corresponding to that Fourier coefficient.
D.
The output will be periodic with the period which is not the same as the input signal