Design of NPR-Type Cosine Modulated Filterbank Using Combinational Window Functions

Ram Kumar Soni, Alok Jain, Rajiv Saxena

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DOI: 10.4236/ijcns.2010.312127                

Abstract

This paper presents the design of near perfect reconstruction (NPR) cosine modulated filterbank (CMFB). The prototype filter is designed by the combinational window functions. These window functions provide high side-lobe-fall-off-rate (SLFOR) with better far-end attenuation which suppresses the undesired inter-ferences occur in the filterbank. A linear optimization is used to minimize the error parameters. Design ex-amples have been included to illustrate the effectiveness of the proposed technique over the earlier reported work.

Keywords

Combinational Window Functions, SLFOR, Far-End Attenuation, Stopband Energy

Conflicts of Interest

The authors declare no conflicts of interest.

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