Auxiliary Noise Power Scheduling Based on Gradient of Error Power for Pre-inverse Active Noise Control
Auxiliary Noise Power Scheduling Based on Gradient of Error Power for Pre-inverse Active Noise Control
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DOI：
10.1109/iscas.2018.8351018
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发表时间：
2018-05
期刊：
影响因子：
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通讯作者：
Keisuke Okano;Takaki Itatsu;N. Sasaoka;Y. Itoh
中科院分区：
文献类型：
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作者：
Keisuke Okano;Takaki Itatsu;N. Sasaoka;Y. Itoh
提出了带功率调度的滤波有源噪声控制方法。但是，filter -x ANC不能保证是稳定的。此外，传统的功率调度不能充分降低收敛后的辅助噪声功率。所得增益的色散过大，导致收敛变晚。为了解决这一问题，提出了一种基于误差功率梯度的预逆蚁群算法。所提出的系统使用平坦延迟信号代替滤波输入信号，不像滤波-x ANC。因此，它在保持稳定性的同时减少了噪音。由于系统的稳定性，所提出的功率调度可以抑制增益的色散。
Filtered-x active noise control (ANC) with power scheduling has been proposed for noise control. However, filtered-x ANC is not guaranteed to be stable. In addition, the conventional power scheduling cannot reduce the power of auxiliary noise enough after convergence. The dispersion of obtained gain is too large, and then the convergence becomes late. In order to solve the problems, we propose a type of pre-inverse ANC with the power scheduling based on gradient of error power. The proposed system uses a flat delayed signal instead of a filtered input signal unlike filtered-x ANC. It therefore reduces noise while maintaining stability. The proposed power scheduling can restrain the dispersion of gain due to system stability.