On the filtering properties of evolved gate arrays

Author

Miller, Julian F.

Author_Institution

Sch. of Comput, Napier Univ., Edinburgh, UK

fYear

1999

fDate

1999

Firstpage

2

Lastpage

11

Abstract

A small gate array is evolved extrinsically to carry out a low pass filtering task defined over fifteen different frequencies. The circuit is evolved by assessing its response to digitised sine waves. Two different fitness functions are contrasted. One is based on computing the sum of the absolute differences between the actual response and that desired, the other is defined by examining characteristics of the discrete Fourier transform of the output. The gate arrays possess some linear properties, which means that they are capable of filtering composite signals which have not been encountered in training. This includes signals with noise added and with frequencies which are not in the training set

Keywords

logic arrays; logic design; noise; absolute differences; digitised sine waves; discrete Fourier transform; evolved gate arrays; filtering properties; linear properties; low pass filtering; Algorithm design and analysis; Circuits; Clocks; Electronic switching systems; Evolutionary computation; Filtering; Finite impulse response filter; Frequency; Hardware; IIR filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Evolvable Hardware, 1999. Proceedings of the First NASA/DoD Workshop on

Conference_Location

Pasadena, CA

Print_ISBN

0-7695-0256-3

Type

conf

DOI

10.1109/EH.1999.785429

Filename

785429