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A class of time-frequency product optimized biorthogonal wavelet filter banks

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3 Author(s)
Ritesh Kolte ; Department of Electrical Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076 ; Pushkar Patwardhan ; Vikram Gadre

The time-frequency product of any function in L2 (¿) is bounded by the uncertainty principle. This paper presents a method to design linear phase biorthogonal filter banks with the time-frequency localization as the optimality criterion. The design philosophy is to optimize the time-frequency product of the iterated wavelet, after fixing the number of vanishing moments of the analysis and synthesis lowpass filters, by adjusting a single parameter.

Published in:

Communications (NCC), 2010 National Conference on

Date of Conference:

29-31 Jan. 2010