Two-dimensional polyphase filter banks with arbitrary number of subband channels
Resource
Circuits and Systems, 1988., IEEE International Symposium on
Journal
IEEE International Symposium on Circuits and Systems, 1988, ISCAS '88
Pages
-
Date Issued
1988-06
Date
1988-06
Author(s)
Young, Tsai-Tien
DOI
N/A
Abstract
Two-dimensional (2-D) polyphase filter banks for 2-D subband signal processing systems are described. New 2-D polyphase filter banks with an arbitrary number of subband channels are presented. The concept of nonsymmetric frequency band allocation for the construction of subband bandpass filters is extended to the 2-D case. The subband bandpass filters required in both analysis and synthesis filter banks are then constructed from the frequency translations of a 2-D prototype lowpass filter. The constraints of perfect aliasing cancellation and signal reconstruction are derived for cases of separable and nonseparable 2-D prototype lowpass filters. Simulation results that confirm the theoretical analyses are also provided.>
Type
journal article
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