A DESIGN METHODOLOGY FOR TWO-DIMENSIONAL ANALOG FILTERS WITH LINEAR PHASE
Gaoquan Gu, Pradeep Kumar Mısra, Belle A. Shenoi · Journal of Circuits Systems and Computers · 1991
A new methodology is proposed for the synthesis of two-dimensional analog filters with linear phase. The Fourier series theory is employed to design a noncausal Laguerre type filter and Hankel approximation machinery is then used to synthesize the causal, stable two-dimensional analog filter with linear phase. The proposed design technique is illustrated by design of a lowpass filter.