Stability Analysis for the Generalized Sidelobe Canceller

被引：3
|
作者：
Townsend, J. Philip [1 ]
Donohue, Kevin D. [1 ]
机构：
[1] Univ Kentucky, Ctr Visualizat & Virtual Environm, Lexington, KY 40507 USA
来源：
IEEE SIGNAL PROCESSING LETTERS | 2010年 / 17卷 / 06期
关键词：
Adaptive filters; array signal processing; least mean square filters; microphone arrays; noise cancelation;
D O I：
10.1109/LSP.2010.2049159
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
One approach for reducing noise from non-target locations in array beamformer applications is to use an adaptive noise cancellation algorithm referred to as the Generalized Sidelobe Canceller (GSC). An analysis is performed to derive a closed-form expression showing the relationship between stability, the number of array channels, adaptive step size mu, and forgetting factor beta. The result is verified by applying the GSC to experimental data with a range of values for mu, beta, and array channels to show when the GSC becomes unstable.(1)
引用
收藏
页码：603 / 606
页数：4
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