A modular approach to the hardware implementation of digital filters

Recent advances in the technology of medium and large scale integrated circuits (m.s.i. and l.s.i.) have made possible economical hardware implementations for real-time digital filtering. A flexible design approach for such implementations is presented. The processing mode can be varied to give any hybrid structure between the purely serial and parallel realizations. This leads to a design approach which can be adjusted to suit hardware availability. The resulting structures are modular and are in line with current trends in m.s.i. and l.s.i. technology in that they lend themselves readily to implementations using semiconductor read-only or random access memories.