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A new approach to time-varying FIR filter banks

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4 Author(s)
Sodagar, I. ; Digital Signal Process. Lab., Georgia Inst. of Technol., Atlanta, GA, USA ; Nayebi, K. ; Barnwell, T.P., III ; Smith, M.J.T.

Perfect reconstruction (PR) time-varying analysis-synthesis filter banks are those in which the filters are allowed to change from one set of PR filter banks to another as the input signal is being processed. Such systems have the property that, in the absence of coding, they faithfully reconstruct every sample of the input. This paper introduces a new approach to perfect reconstruction time-varying analysis-synthesis filter banks. The new method requires neither the redesign of the analysis sections, nor the use of any intermediate analysis filters during transition periods. It provides a simple procedure for designing time-varying filter banks without the disadvantages of the previous methods

Published in:

Signals, Systems and Computers, 1993. 1993 Conference Record of The Twenty-Seventh Asilomar Conference on

Date of Conference:

1-3 Nov 1993