 |
(5.8) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
As shown in [506, §3.3.3], directly substituting into Eq.(4.7) derives the following coefficient symmetry property for the interpolation coefficients (impulse response) of a Lagrange fractional delay filter:
is the order of the interpolator. Thus, the interpolation
coefficients for delay 
are the ``flip'' (time reverse) of
the coefficients for delay 
.
