New answers tagged proof
0
Note that f() can only be sampled down to N points per period if f() is bandlimited to include only spectrum below t_period/(2*N) in frequency. And a signal exactly periodic in N, with no frequency content at or above t_period/(2*N) in frequency can be exactly represented with N complex exponential basis vectors (Fourier). And the inverse.
The number of ...
Top 50 recent answers are included
