Design of pipelined lattice IIR digital filters

A pipelining method in lattice digital filters is introduced. This pipelining method is based on a constrained IIR (infinite impulse response) digital filter design method by which pipelined direct-form filters are designed. These direct-form filters are transformed to pipelined lattice digital filters. It is shown that the roundoff error and the number of multiply/add operations of the resulting pipelined lattice filters are smaller than those of the pipelined lattice filters obtained by applying look-ahead on direct-form nonpipelined digital filters