scipy.signal._upfirdn:_pad_h

Extended Summary

For example, suppose upRate is 3, and the input number of coefficients is 10, represented as h[0], ..., h[9].

Then the internal buffer will look like this

h[9], h[6], h[3], h[0],   // flipped phase 0 coefs
0,    h[7], h[4], h[1],   // flipped phase 1 coefs (zero-padded)
0,    h[8], h[5], h[2],   // flipped phase 2 coefs (zero-padded)