Synthesis of symmetric and nonsymmetric lattice digital filters which are free of constant-input limit cycles

Syntheses procedures for lattice digital filter structures which can be free of constant-input limit cycles are presented. As a result, the realizations derived, in most cases, maintain the desirable properties of the original lattice while being free of constant-input limit cycles. The symmetric lattice structures, which are amenable to efficient VLSI implementation, are considered regarding their freedom from zero-input and constant-input limit cycles. The pertaining syntheses procedures are presented. Experimental results are included to compare the several realizations discussed with respect to output roundoff noise and multiplier coefficients sensitivity