Direct canonic synthesis of all-pass digital filter structures
Tangala Venkateswarlu · IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications · 1999
A structure for realization of the nth-order all-pass digital filter is presented. A known synthesis approach is used to obtain filter structures. The method is simple and the resulting structure contains n multipliers and n unit delay elements. These structures possess modularity and are, hence, attractive for VLSI implementation.