基于信息论的时序电路演化设计

Design of Time Series Circuit Evolution Based on Information Theory

时序电路由于存在反馈连接,因此是数字型演化硬件研究中的难点问题。为此,对时序电路的演化设计方法进行改进,提出一种针对时序电路演化的虚拟可重构平台,阐述在此平台上演化时序电路的方法。基于信息论改进电路的适应度评估方法,以目标函数和电路实测输出之间的信息熵设计适应度评估函数。实验结果表明,该方法具有较好的稳定性和全局寻优能力。

The design of circuit evolution is one of the main research directions in Evolvable Hardware（EHW）.And since there are feedback connects,the time series circuit evolution has always been the key problem in the research of digital circuits’ evolution.In this paper,the design method of time series circuit evolution is improved.The virtual reconfigurable platform is put forward for the evolution of time series circuit,and it discusses the method of sequential circuits’ evolution in the platform.Based on information theory designed fitness evaluation function,it improves the convergence of the algorithm.Experimental results show that this method has better stability and global optimization ability.