Interpolated FIR based practically perfect reconstruction filter bank
Jorge Enrique Cadena, A. A. Louis Beex · 2016
A new filter bank structure or channelizer is developed, named the IFIR-FB, as it is the result of combining the concepts of interpolated FIR filters (IFIR) and filter banks (FB). The filter design procedures for the IFIR-FB are developed and explained. The resulting IFIR-FB structure is shown to be competitive with the state-of-the-art non-maximally-decimated filter bank, in terms of the number of multiplications required per input sample and overall distortion introduced by the system when operating with Nyquist prototype filters.