It is shown that in the ANC system with IIR filter the acousticfeedback effect has been apparently abated.
结果表明,采用IIR滤波器结构的ANC系统,对声学反馈现象确实具有明显的抑制作用。
3
A method to obtain the diagnostic signal, the acousticfeedback control system and the principle of laser welding diamond saw are described in the paper.