Improved addition for the logarithmic number system

1 February 1989

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Acoustics, Speech, and Signal Processing

Vol. 37 (2) , 301-303
https://doi.org/10.1109/29.21694

Abstract

The logarithmic number system (LNS), which offers a wide dynamic range with an independently choosable signal-to-noise ratio, is discussed. To realize addition, voluminous lookup tables are needed. A method is proposed to reduce the storage requirements of these tables by means of Chebyshev approximation with unequally spaced partition points

Keywords

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