Studies on Z-Window Based FIR Filters | Zendy

Rahul Pachauri | Zendy; Rajiv Saxena | Zendy; Sanjeev Sharma | Zendy

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Studies on Z-Window Based FIR Filters

Author(s) -

Rahul Pachauri,

Rajiv Saxena,

Sanjeev Sharma

Publication year - 2013

Publication title -

isrn signal processing

Language(s) - English

Resource type - Journals

eISSN - 2090-505X

pISSN - 2090-5041

DOI - 10.1155/2013/148646

Subject(s) - window (computing) , quadrature mirror filter , aliasing , side lobe , window function , filter (signal processing) , finite impulse response , filter bank , contrast (vision) , prototype filter , computer science , low pass filter , mathematics , algorithm , artificial intelligence , computer vision , telecommunications , antenna (radio) , operating system

As per classification of the window functions, the Z-windows are grouped in the category of steerable side-lobe dip (SSLD) windows. In this work, the application of these windows for the design of FIR filters with improved filter parameters has been explored. The numbers of dips with their respective positions in the side-lobe region have been compositely used to tailor the window shape. Filter design relationships have been established and included in this paper. Simultaneously, an application of these Z-window based FIR filters in designing two-channel quadrature mirror filter (QMF) bank has been presented. Better values of reconstruction and aliasing errors have been achieved in contrast to the Kaiser window based QMF bank.

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