Theory and Applications of the Double-Base Number System

  • Authors:
  • Vassil S. Dimitrov;Graham A. Jullien;William C. Miller

  • Affiliations:
  • Helsinki Univ. of Technology, Finland;Univ. of Windsor, Ont., Canada;Univ. of Windsor, Ont., Canada

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 1999

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Abstract

In this paper, we analyze some of the main properties of a double base number system, using bases 2 and 3; in particular, we emphasize the sparseness of the representation. A simple geometric interpretation allows an efficient implementation of the basic arithmetic operations and we introduce an index calculus for logarithmic-like arithmetic with considerable hardware reductions in look-up table size. We discuss the application of this number system in the area of digital signal processing; we illustrate the discussion with examples of finite impulse response filtering.