自整定法利用阶跃响应求传递函数n阶导数，不需要知道传递函数-Since the entire titration step response request transfer function n order derivative, need to know the transfer function

AIC信息准则法的系统辨识程序，通过系统输入输出辨识出系统的传递函数。-system identification program of AIC Information Criterion method:identified by the system input-output transfer function of the system.

声学仿真双传递函数法的有源控制，里面有有源降噪，以及在管声场中对散射声的仿真。-The active control of the double transfer function method of the acoustic simulation, which has the active noise reduction, and the simulation of the scattering sound in the sound field of the tube.