General algorithm for the derivation of transfer functions of multidimensional (M-D) discrete systems
A general algorithm to derive the transfer functions of M-D discrete systems has been presented. The given M-D discrete system with arbitrary order and arbitrary topology structure can be analyzed. We construct the algorithm by nodal equations, M-D DFT, M-D signal flow graph. Resorting to the algorithm, we develop computer aided analysis software for deriving the transfer function of a M-D discrete system. An example for analyzing a 2-D lattice digital filter shows our algorithm to be valid.