【摘要】 阐述了模拟型仿生硬件的概念、基本思想与技术瓶颈 ,分析了基于 FPTA( Field programmable transistorarray)的模拟型仿生硬件的结构与电子细胞电路工作原理。给出了模拟型仿生硬件的电路编码方案、个体电路测试评估方法和进化实现过程。提出了基于单染色体自适应变异进化机制的模拟型仿生硬件进化算法。以信号放大器、半波整流器、异或门数字电路作为典型应用实例 ,来验证模拟型仿生硬件的进化特性 ,并讨论了进化算法的参数选取、染色体适应度评估问题。仿真结果表明 :所提出硬件进化算法的进化速度快、成功率高 ,所设计的FPTA细胞阵列可以实现模拟信号放大、信号处理和数字电路逻辑功能更多还原

【Abstract】 The principle and the key technology of the analog bio- inspired hardware are analyzed. The architecture of field programmable transisto r array (FPTA) cell arrays and the circuit of electronic cells are designed. The circuit coding representation, chromosome fitness evaluation method and evoluti on process of the analog bio-inspired hardware are presented. A method for evol ving the analog bio-inspired circuits based on adaptive mutation evolutionary m echanism of single chromosome is put forward. By examples of evolvable amplifier , rectifier and digital circuit, the evolutionary performances of analog bio-in spired hardware are demonstrated. The determination of the fitness function and the selection of mutation parameter of the evolutionary algorithm are discussed. Results show that the new evolutionary method for analog bio-inspired hardware has a higher efficiency, and FPTA cell array may be used for analog signal ampl ification, nonlinear signal processing and digital logic circuit.更多还原