Title :
Linear Programming Design of Coefficient Decimation FIR Filters
Author :
Sheikh, Zaka Ullah ; Gustafsson, Oscar
Author_Institution :
Dept. of Electr. Eng., Linkoping Univ., Linköping, Sweden
Abstract :
The coefficient decimation technique for reconfigurable FIR filters was recently proposed as a filter structure with low computational complexity. In this brief, we propose to design these filters using linear programming taking all configuration modes into account, instead of only considering the initial reconfiguration mode as in previous works. Minimax solutions with significantly lower approximation errors compared to the straightforward design method in earlier works are obtained. In addition, some new insights that are useful when designing coefficient decimation filters are provided.
Keywords :
FIR filters; computational complexity; linear programming; minimax techniques; approximation errors; coefficient decimation FIR filters; filter structure; initial reconfiguration mode; linear programming design; low computational complexity; minimax solutions; reconfigurable finite impulse response filters; Adaptation models; Approximation error; Finite impulse response filter; Interpolation; Linear programming; Multiaccess communication; Passband; Approximation error; coefficient decimation; finite impulse response (FIR) filters; linear programming; reconfigurability;
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
DOI :
10.1109/TCSII.2011.2173965