| 摘要: |
| 为了改善单通道主动噪声FX-LMS系统的噪声抵消性能，尤其是非平稳噪声的抵消性能。将基于QR分解的RLS算法应用于FX-LMS系统中构成了FX-QRLS系统。仿真结果表明，对粉红平稳噪声信号，该系统抵消效果较FX-LMS系统提高了约8dB；对于在FX-LMS系统中不收敛的非平稳噪声，也可以得到较好的抵消效果。实际噪声控制中应用QRLS算法是可能的。 |
| 关键词: 主动噪声控制 自适应滤波器 RLS |
| DOI：10.11841/j.issn.1007-4333.2004.04.103 |
| 修订日期：2004-04-06 |
| 基金项目: |
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| An active noise control system based on RLS arithmetic |
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| Abstract: |
| A mono channel active noise control system based on inverse QR decomposed RLS algorithm was developed to improve the result for clearing steady or non steady noise of the system based on fx lms structure. According to the result of the simulation, the system based on inverse QR decomposed RLS has been incteased algorithm 8?dB better filtering result of band limited steady noise compared to that based on LMS algorithm and can deal with well non steady noise that having no result in the fx lms system. The ANC system based on QRLS could be used in real life. |
| Key words: active noise control (ANC),adaptive filter,RLS |
