基于同步方程方法的有源噪声控制

An Active Noise Control Method Based on Simultaneouse Equation Method

基于同步方程方法基本原理,对有源噪声控制系统中的参考输入信号和测量误差信号进行处理,得到最优的噪声控制滤波器,其无须对次路径进行辨识建模,且具有较好的鲁棒性;就前馈控制结构加以研究,仿真结果表明,该方法不仅在次路径固定不变时,使噪声信号得到明显衰减,并且在次路径发生改变时,依然能很好地控制噪声。

An active noise control method based on simultaneous equation is introduced. The coefficients of the noise control filter are optimized by this method. The algorithm which doesn＇t need the second path has high robustness. The feedforward structure is investigated and the simulating results show that this method controls the primary noise signal perfectly whether the secondary path is variable or not.