[IEEE IEEE APCCAS 2000. 2000 IEEE Asia-Pacific Conference on Circuits and Systems. Electronic Communication Systems. Proceedings - Tianjin, China (4-6 Dec. 2000)] IEEE APCCAS 2000. 2000 IEEE Asia-Pacific Conference on Circuits and Systems. Electronic Communication Systems. (Cat. No.00EX394) - Design of variable 2-D recursive digital filters with guaranteed stability