10 Nov
2022
10 Nov
'22
4:50 p.m.
freq[k] = sum_over_n(time[n] * exp(-2 * pi * i * k * n / N) time[n] = 1/N * sum_over_k(freq[k] * exp(2 * pi * i * k * n / N) so, here, the angle is k * n / N, where k is the index in the frequency domain. could i still reconstruct a signal if i scaled k * n / N to be within a small bandwidth ??? i'm guessing that i could, if my data is all within that bandwidth, and sampled it the same way it was generated.