Title :
Circular array based 2D recursive filtering using a spatio-temporal helix transform
Author :
Madanayake, H. L P Arjuna ; Bruton, Leonard T.
Author_Institution :
Calgary Univ.
Abstract :
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
Keywords :
IIR filters; VLSI; Z transforms; array signal processing; filtering theory; recursive filters; spatiotemporal phenomena; 1D filters; 2D IIR filters; 2D recursive filtering; BIBO; VLSI implementation; circular array; spatio-temporal helix transform; z-domain helix transform; Difference equations; Discrete transforms; Filtering; Finite impulse response filter; IIR filters; Nonlinear filters; Sensor arrays; Stability; Tellurium; Very large scale integration;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693734
