关键词: 进化型硬件, 自适应遗传算法, 状态变量滤波器, 进化, 仿真

Abstract: Once after the structure of the former filter is fixed，its own parameters cannot be changed，but technical parameter targets of an analogue evolvable state variable filter can be changed with the external environment real-time changing.A kind of hardware structure of the filter is given，and basic work theory of the evolvable hardware is introduced.One kind of improvement multi-object self-adapted genetic algorithm is utilized，and parameter optimization of the evolvable state variable filter is realized.Structure of high Q value four-order state variable filter is built by cascade method，and it is able to meet performance request in its stop-band，passing band，transition band，and practicality of the filter has been simulated and verified.Value of evolutionary filer’s parameters is in line with theoretical value exceedingly，and the simulation result is satisfying.

Key words: evolvable hardware, self-adapted genetic algorithm, state variable filter, evolve, simulate