I'm trying to perform upsampling in Python. Given the signal 's' and factor of upsampling N, I wrote the following code:
> y = np.zeros(N*len(s)) > for i in range(0, N*len(s), N): > for j in range(len(s)): > y[i] = s[j] > return y
However, when I have a signal with first value '1' and factor of upsamling 3, my output of the function is like [1, 0, 0, 1, 0, 0] etc, no matter what the rest of the signal looks like. Is there a way to make this code work properly?