A new method for the design of 2-D filters with guaranteed stability
Moustafa M. Fahmy, Mohammed Sobhy · IEEE Transactions on Circuits and Systems · 1982
A new method-based on transformations from 1-variable transfer functions is presented for the design of stable 2-variable transfer functions. As compared with already existing methods, this method results in a good response obtained through fewer numbers of iterations. The designed filters are always stable without the need of any constraints during minimization.