Title :
Complexity Reduction of FRM Filters via Multiplication-Free Prefilter-Equalizer Structures
Author :
Lian, Yong ; Yang, Chun Zhu ; Lim, Yong Ching
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore
Abstract :
In this paper, we present two new computationally efficient frequency-response masking (FRM) filter structures that combine the well-known FRM technique and prefilter-equalizer approach. Several multiplication-free prefilters are introduced for the proposed FRM filter structures. We show, by means of an example, that the newly developed prefilter-equalizer based FRM structures yield as much as 32% reduction in terms of the number of arithmetic operations compared to the original FRM approach.
Keywords :
FIR filters; circuit complexity; equalisers; frequency response; FRM filters; arithmetic operations; complexity reduction; frequency-response masking filter structures; multiplication-free prefilter-equalizer structures; prefilter-equalizer approach; Arithmetic; Attenuation; Band pass filters; Computational efficiency; Finite impulse response filter; Frequency; Interpolation; Laboratories; Passband; Transfer functions;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.377870
