Circular array based 2D recursive filtering using a spatio-temporal helix transform

A form-preserving 2D z-domain helix transform is proposed for the synthesis of computable practical-BIBO stable 2D recursive filters computed over uniformly-spaced circular input arrays. The helix transform converts non-computable 2D IIR filters into computable and BIBO stable 1D filters in order to...

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Bibliographic Details
Main Authors: Arjuna Madanayake, H.L.P., Bruton, L.T.
Format: Conference Proceeding
Language:English
Subjects:
Difference equations
Discrete transforms
Filtering
Finite impulse response filter
IIR filters
Nonlinear filters
Sensor arrays
Stability
Tellurium
Very large scale integration
Online Access:Request full text
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Description
Summary:A form-preserving 2D z-domain helix transform is proposed for the synthesis of computable practical-BIBO stable 2D recursive filters computed over uniformly-spaced circular input arrays. The helix transform converts non-computable 2D IIR filters into computable and BIBO stable 1D filters in order to facilitate the required 2D IIR filter transfer function in space-time. Further, a novel scanned-array architecture of the proposed 2D helical circular array processors is proposed that is suitable for VLSI implementation
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2006.1693734