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Fast realisation of 2-D digital filters using logarithmic number systems

Fast realisation of 2-D digital filters using logarithmic number systems

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Previous papers of mine have discussed the approximation of 2-D digital filter coefficients with algebraic sums of integer powers of the base in a logarithmic number system. The results already obtained suggest a sequential memory-oriented realisation which is faster than the standard implementation.

Inspec keywords: two-dimensional digital filters

Other keywords: sequential memory-oriented realisation; logarithmic number systems; 2-D digital filters; fast implementation

Subjects: Digital filters; Digital filters

References

    1. 1)
      • G.L. Sicuranza . 2-D digital filters using logarithmic number systems. Electron. Lett. , 854 - 855
    2. 2)
      • G.L. Sicuranza . On efficient implementations of 2-D digital filters using logarithmic number systems. IEEE Trans.
    3. 3)
      • T. Kurokawa , J.A. Payne , S.C. Lee . Error analysis of recursive digital filters implemented with logarithmic number systems. IEEE Trans. , 706 - 715
    4. 4)
      • C.F. Kurth , K.J. Bures , P.R. Gagnon , M.H. Etzel . A per-channel, memory-oriented transmultiplexer with logarithmic processing. IEEE Trans. , 1520 - 1527
    5. 5)
      • E.E. Swartzlander , A.G. Alexopoulos . The sign/logarithm number system. IEEE Trans. , 1238 - 1242
    6. 6)
      • S.C. Lee , A.D. Edgar . The focus number system. IEEE Trans. , 1167 - 1170
    7. 7)
      • G.D. Tattersall , M.J. Carey . Digital bandlimiting filters for PCM transmission systems. IEEE Trans. , 240 - 246
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