An implementation of lattice filters using four operands real multiply accumulation

Yoshimasa Negishi, Eiji Watanabe, Akinori Nishihara

Research output: Contribution to journalArticlepeer-review


Four operands Real Multiply Accumulation (4op-RMA) is a method to implement transversal circuits, direct form circuits and 2D type circuits with real coefficients by using a complex multiplier. Digital Signal Processors (DSPs) with 4op-RMA implement these circuits twice as fast as the conventional ones. Besides, we can simplify the programs on such DSPs. However 4op-RMA have not been applied to the lattice circuits yet because of their circuit structures. In this paper, we propose an implementation method for the lattice circuits by using 4op-RMA. The lattice part can be calculated by a 4op-RMA operation, which corresponds to a complex multiplication.

Original languageEnglish
Pages (from-to)115-121
Number of pages7
JournalJournal of Circuits, Systems and Computers
Issue number2
Publication statusPublished - 2002 Apr


  • Complex multiplier
  • Digital filter
  • Implementation
  • Lattice circuit

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering


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