A modular and orthogonal digital filter structure for parallel processing

An orthogonal filter structure is presented, whose synthesis is based on a generalized Levinson algorithm. This structure has a ladder-like flow graph topology. It is modular and has a high degree of computational parallelism. Implementation guidelines in the framework of parallel data processing are considered. A closed form for the round off noise error variance is given, from which it appears that the structure will be particularly useful for the implementation of narrow bandwidth filters.