Naslov
On the complexity reduction of polyphase linear phase FIR filters with symmetric coefficient implementation

Autori
Yu, Ya Jun ; Shi, Dong ; Bregović, Robert

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of 2009 IEEE International Symposium on Circuits and Systems / - Taipei, 2009, 277-280

Skup
IEEE International Symposium on Circuits and Systems

Mjesto i datum
Taipei, Tajvan, 24.05.2009. - 27.05.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
FIR filter implementation; multiple constant multiplication; polyphase structure

Sažetak
The multiple constant multiplication (MCM) implementation of polyphase decomposed finite impulse response (FIR) filters can be formulated as (1) one MCM block with all coefficients, (2) one MCM block for each subfilter, or (3) as a matrix MCM block. The coefficient symmetry of linear phase FIR filters, however, is not exploited in the later two formulations. In this paper, we investigate the MCM implementation of polyphase structures with coefficient symmetry, where each subfilter MCM block is synthesized separately. We show that by using the proposed implementation it is possible to reduce the number of adders compared with currently existing methods without increasing the storage elements. The proposed techniques can also be extended to the matrix MCM block implementation.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo

POVEZANOST RADA