Canonical signed digit representation of Quadrature Mirror Filter using Genetic Algorithm

Misra, Debajyoti; Dhabal, Supriya; Chakrabarti, Roshni; Venkateswaran, P.

doi:10.1109/codis.2012.6422137

Cited by 6 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Its area of functioning not remain in the above cases but also in analog to digital transform and Digital Trans multiplexer (used in FDM/TDM conversion) etc. [7] The primary element of QMF is Prototype filter which is constructed by using Kaiser Window function [8]. A new method is developed to optimize the prototype filter overall response.…”

Section: Introductionmentioning

confidence: 99%

Quadrature Mirror Filter bank with canonical signed digit representation using linear optimization algorithm

Misra¹,

Dhabal²,

Venkateswaran

2015

Proceedings of the 2015 Third International Conference on Computer, Communication, Control and Information Technology (C3IT)

Self Cite

View full text Add to dashboard Cite

In this paper a two channel Quadrature Mirror Filter (QMF) bank is designed using linear optimization algorithm. Filter coefficients are represented in canonical signed power of two. It is observed that the use of the Canonical Signed Digit (CSD) representation of filter coefficients can simplify the hardware implementation of digital filter. The proposed method not only reduces hardware complexity but also reduces reconstruction error of original signal to a larger extent to achieve near perfect reconstruction. A refurbishment method is used to restore the CSD format of coefficients after obtaining coefficients using linear optimization algorithm.

show abstract

Section: Introductionmentioning

confidence: 99%