[1]ZHANG Chao,LIU Zheng,ZHAO Wei.Hardware evolution based on a new chromosome encoding method[J].CAAI Transactions on Intelligent Systems,2011,6(5):450-455.
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
6
Number of periods:
2011 5
Page number:
450-455
Column:
学术论文—人工智能基础
Public date:
2011-10-30
- Title:
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Hardware evolution based on a new chromosome encoding method
- Author(s):
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ZHANG Chao; LIU Zheng; ZHAO Wei
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National Laboratory of Radar Signal Processing, Xidian University, Xi’an 710071, China
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- Keywords:
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hardware evolution; chromosome encoding; field programmable logic array(FPLA); Verilog HDL
- CLC:
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TP18;TP302.8
- DOI:
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- Abstract:
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This paper proposed an FPLAbased chromosome encoding approach and a parallel hardware evolution method on the basis of a new encoding approach. The ANDORNOT gates are the basic units of the chromosome, so by decomposing the chromosome while evolving and integrating it when computing the adaptation, the evolution time can be shortened. This benefits the evolution of massive and complex circuits. Taking the circuit of changing 4 bits binary code to gray code as an example, the result shows that the average speed increases 32.25 percent over 20 evolutions when using the proposed method. In order to facilitate intrinsic evolutions, the C program was also exploited for translating the chromosome to Verilog hardware language. The encoding method was able to handle multiinput and multioutput circuit evolution, and the chromosome’s length was variable. According to the evolution of the heterogeneous circuits based on this feature, fault tolerance was achieved. This work is significant for online repair used to improve the reliability of electronic systems exposed to harsh space environments.