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General method for perfect reconstruction subband processing of finite length signals using linear extensions

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2 Author(s)
V. Silva ; Inst. de Telecomunicaoes, Pola II da Univ. de Coimbra, Portugal ; L. De Sa

A general approach to the nonexpansive M band decomposition of finite length signals is presented. The technique is based on linear signal extensions and can be applied to all types of linear- and nonlinear phase M-band perfect-reconstruction filter banks. The signal expansion is described by a linear transformation on the input signal, and the extended subband samples can be easily found using simple matrix computations

Published in:

IEEE Transactions on Signal Processing  (Volume:47 ,  Issue: 9 )