R Kumar, S Sharma, D Kachave, A Sengupta, G Kumar… - ieeecs-media.computer.org

IEEE VLSI Circuits and Systems Letter (VCAL)-TCVLSI.

EPSCoR Research Infrastructure Improvement Program AND Program Evaluation

Kachave, Kumar, Sengupta, Sharma

GSID: rWudBkWFyhIJ

Excerpt

This letter reports a novel scheme for hardware implementation of the sigmoid function. We propose a piecewise second order approximation that makes use of Distributed Arithmetic (DA) to achieve multiplierless implementation of the second order polynomial using a single 8 word ROM. A dedicated squaring unit has also been used to obtain the square term. A resource efficient implementation for the proposed architecture has been estimated analytically. Actual implementation results and comparison with some existing architectures …

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