Title :
1:4 interpolation FIR filter
Author :
Son, Y. ; Ryoo, K. ; Kim, Y.
Author_Institution :
Waytotec Inc., Gyunggi-Do, South Korea
Abstract :
A new 1:4 interpolation FIR filter is presented. Using the symmetries of the filter coefficients and the contents of the lookup table (LUT), the two filters for in-phase (I-phase) and quadrature-phase (Q-phase) share the LUT and activate only the selected part of the LUT. Experimental results show that the proposed filter reduces the power consumption and the gate area by 28 and 5% compared to conventional filters.
Keywords :
FIR filters; interpolation; low-power electronics; table lookup; 1:4 interpolation FIR filter; filter coefficient symmetries; gate area reduction; in-phase component; lookup table; power consumption; quadrature phase component;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20046754
