DocumentCode
1915606
Title
Conversion and Addition in Logarithmic Number Systems Using a Sum of Bit-Products
Author
Johansson, Kenny ; Gustafsson, Oscar ; Wanhammar, Lars
Author_Institution
Dept. of Electr. Eng., Linkoping Univ.
fYear
2006
fDate
Nov. 2006
Firstpage
39
Lastpage
42
Abstract
Computations in logarithmic number systems require realizations of four different elementary functions. In this work we utilize a recently proposed approximation method based on weighted sums of bit-products to realize these functions. It is shown that the considered method can be used to efficiently realize the different functions. However, a transformation is proposed to improve the results for functions with logarithmic characteristics
Keywords
digital arithmetic; function approximation; table lookup; transforms; approximation method; bit-product sum; logarithmic number systems; Adaptive filters; Application software; Approximation methods; Computer architecture; Digital arithmetic; Function approximation; Interpolation; Linear approximation;
fLanguage
English
Publisher
ieee
Conference_Titel
Norchip Conference, 2006. 24th
Conference_Location
Linkoping
Print_ISBN
1-4244-0772-9
Type
conf
DOI
10.1109/NORCHP.2006.329240
Filename
4126943
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