This paper proposes a new evolvable hardware (EHW) technique that allows one to design and optimise relatively complex PLA structures using direct evolutionary process. In order to improve the performance of the evolutionary strategy the authors proposed to introduce the dynamic mutation rate that will be variable to each gene in the chromosome. The experimental results carried out on MCNC benchmarks show that the developed technique significantly outperforms any standard evolvable hardware technique introduced earlier by a number of criteria: time required to evolve logic circuit; evolution of complex circuit using only one direct evolutionary process; guarantee of evolution of fully functional solution
