南京航空航天大学学报(英文版)
南京航空航天大學學報(英文版)
남경항공항천대학학보(영문판)
TRANSACTIONS OF NANJING UNIVERSITY OF AERONATICS & ASTRONAUTICS
2004年
3期
241-246
,共6页
主动控制%自适应陷波器%FXLMS算法%在线识别
主動控製%自適應陷波器%FXLMS算法%在線識彆
주동공제%자괄응함파기%FXLMS산법%재선식별
active control%adaptive notch filter%FXLMS algorithm%on-line identification
针对窄带信号,提出了基于自适应陷波器的次级通道特性在线识别算法,该方法利用自适应陷波器技术解决在线识别时存在的激励信号被干扰问题,从而提高次级通道特性在线识别的速度,达到提高算法整体性能的目的.讨论了参考信号比例因子对系统的影响.实验结果表明,应用该算法的控制系统的整体性能得到较大程度的提高.
針對窄帶信號,提齣瞭基于自適應陷波器的次級通道特性在線識彆算法,該方法利用自適應陷波器技術解決在線識彆時存在的激勵信號被榦擾問題,從而提高次級通道特性在線識彆的速度,達到提高算法整體性能的目的.討論瞭參攷信號比例因子對繫統的影響.實驗結果錶明,應用該算法的控製繫統的整體性能得到較大程度的提高.
침대착대신호,제출료기우자괄응함파기적차급통도특성재선식별산법,해방법이용자괄응함파기기술해결재선식별시존재적격려신호피간우문제,종이제고차급통도특성재선식별적속도,체도제고산법정체성능적목적.토론료삼고신호비례인자대계통적영향.실험결과표명,응용해산법적공제계통적정체성능득도교대정도적제고.
An improved algorithm is presented to identify the secondary path based on the adaptive notch filter approach. Since the interference from the narrow band excitation signal is suppressed by the adaptive notch filter, the convergent speed of the on-line control path identification process is significantly improved. As a result, the controller performance is greatly enhanced. Besides the algorithm development, some important factors, such as the influence of reference signal on the controller convergent speed, are also discussed. The effectiveness of the algorithm is verified by experimental results.