【摘要】 应用有源噪声控制（ＡＮＣ）理论，在比较反馈控制结构（ＦＢＣＳ）和前馈控制结构（ＦＦＣＳ）后，提出采用模型参考自适应中的ＭＲＡＳ超稳定性设计方法，构造一种反馈结构自适应降噪的实施方案。实验表明，消声效果明显。更多还原

【Abstract】 In this paper feedabck control structure (FBCS) and feedforward control structure (FFCS) are compared based on the active noise control (ANC) theory Then a method of the actual system of feedback adaptive active noise control using asymptotic hyperstable method of MRAS is presented Implementation scheme of active noise-reduction based on feedback structure is proposed The experimental results show the obvious noise cancellation effect of the system更多还原