基于泄漏殘余誤差分離器的窄帶主動噪聲控制系統(tǒng)
doi: 10.11999/JEIT150425
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2.
(哈爾濱工業(yè)大學電氣工程及自動化學院 哈爾濱 150001) ②(中國人民解放軍96361部隊 西寧 810000) ③(廣島縣立大學 日本廣島 734-8558)
基金項目:
國家自然科學基金(61171183, 61471140)，中央高?；究蒲袠I(yè)務(wù)費專項資金資助(HIT.IBRSEM.201306, HIT.NSRIF. 201614)
Narrowband Active Noise Control System Based on Leaky Residual Error Separator
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2.
(School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)
Funds:
The National Natural Science Foundation of China (61171183, 61471140), The Foundamental Research Funds for the Central Universities (HIT.IBRSEM.201306, HIT.NSRIF. 201614)
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摘要: 傳統(tǒng)窄帶主動噪聲控制系統(tǒng)中，各窄帶噪聲分量由各控制器并行處理，而相應的控制系數(shù)卻仍由系統(tǒng)的整體殘余誤差進行更新。這導致各控制器之間相互影響，從而降低了系統(tǒng)的收斂速度。為保證各控制器單獨利用自身的殘余誤差來更新控制系數(shù)，實現(xiàn)殘余誤差信號的頻率分量分離，該文提出一種基于泄漏殘余誤差分離器的窄帶主動噪聲控制系統(tǒng)，并對新系統(tǒng)進行初步統(tǒng)計分析。理論分析、仿真及實驗表明，這種引入泄漏因子的殘余誤差分離器，在不犧牲穩(wěn)態(tài)性能情況下，提升了系統(tǒng)的魯棒性和收斂性。Abstract: In a conventional narrowband active noise control system, each narrowband component is cancelled separately, but each control coefficient is still updated by the overall residual error of the system. This leads to the interferences among the controllers, thus reducing the convergence rate of the system. In order to ensure that each controller uses its own residual error to update the control coefficient and to separate frequency components from residual error signals, a complete narrowband active noise control system based on leaky residual error separator is proposed, and the corresponding preliminary statistical analysis on the new system is derived. Extensive simulations and experimental results as well as theoretical analysis demonstrate that the robustness and convergence performances can be improved without increasing the residual noise in the steady state by using the residual error separator that introduces the leakage factor.
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