vahidkh6222
Full Member level 2

hi,
i found the attached problem in solutions of oppenheim's DSP, but i can not understand the process.
could anybody explain why in this example the fourier transform of x[n] becomes an impulse train?! [[[see attached picture please]]]]
tnx in advance
i found the attached problem in solutions of oppenheim's DSP, but i can not understand the process.
could anybody explain why in this example the fourier transform of x[n] becomes an impulse train?! [[[see attached picture please]]]]
tnx in advance