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一种改进的自适应滤波算法及其在回波对消中的应用 被引量：4

An improved adaptive algorithm and its application in acoustic echo cancellation
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摘要 提出一种改进的自适应滤波算法,它通过选择自适应滤波器的系数更新时间间隔,在系统的收敛速度与计算量之间取得折衷;算法在每次系数更新时,利用了系统过去时刻数据并将频域批处理技术运用到算法计算中,大大加快了算法的收敛速度并且降低了计算复杂度,从而克服了LMS算法收敛速度慢以及仿射投影算法(APA)、递归最小二乘算法(RLS)计算量大的缺点.将所提算法应用于声回波对消中,仿真实验结果证实了其优点. An improved adaptive filering algorithm is proposed in this paper. This proposed algorithm acquires balance of the convergence rate and computational cost of adaptive system by choosing the update interval of filter coefficients. As the previous data of adaptive system and block processing technology in frequency domain are applied to this algorithm, it obtain a faster convergence rate than the LMS algorithm and lower computational complexity than the APA and RLS algorithm. Simulation results confirms its effectiveness in adap- tive acoustic echo cancellation.
作者 罗强 何培宇
机构地区 四川大学电子信息学院
出处 《四川大学学报（自然科学版）》 CAS CSCD 北大核心 2007年第4期821-824,共4页 Journal of Sichuan University(Natural Science Edition)
基金 国家自然科学基金(60472096)
关键词 自适应声回波对消 系数更新时间间隔 过去时刻数据 频域批处理 adaptive acoustic echo cancellation, coefficients update interval, previous data, block processing in frequency domain
分类号 TN911.7 [电子电信—通信与信息系统]
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  • 1Haykin S.自适应滤波器原理(第三版)[M].北京:电子工业出版社,1998..
  • 2Kushner H J. Approximation and Weak Convergence Methods for Random Processes with Applications to Stochastic System Theory [ M ].UK: MIT Press, Cambridge, Mass. 1984.
  • 3Ozeki K, Umeda T. An adaptive frltering algorithm using an orthogonal projection to an affine subspace and its properties [J]. Electronics and Communications in Japan, 1984,67-A(5).
  • 4Makino S, Strauss K. etc. Subband stereo echo canceller using the projection algorithm with fast convergence to the true echo path [ A ]. ICASSP'1997[ C]. 1997.299 - 302.
  • 5Benesty J, Duhamel D, Etc. A multi-channel affine projection algorithm with applicatiom to multi-channel acoustic echo cancellation [J]. IEEE Signal Processing Letters 1996,3(2) :35 - 37.
  • 6Steven L Gay, Sanjeev Tavathia. The fast affine projectio algorithm[A] .Proc ICASSP'95 [C]. 1995.3023 - 3026.
  • 7Benesty J,etc. A fast two-channel projection algorithm for stereophonic acoustic echo cancellation [A]. Proc. ICASSP'96 [C]. 1996. 949 -952.
  • 8Sankaran, S G. Normalized LMS algorithm with orthogonal correction factors [ A]. Proc. of the thirty-first annual asilomar conference on signal systems,and computers [C]. Pacificgroue CA, 1997.
  • 9Widrow B, S D Stearin. Adaptive Signal Processing [ M ]. Englewood Cliffs, NJ : Prentice-Hall, 1985.
  • 10Tornas Gansler, Jacob Benesty. Multichannel acoustic echo cancellation:What's new[M]. Germany: IWAENC, 2001:14-18.

共引文献15

同被引文献34

  • 1曲中源,孙海波.耳鸣非药物治疗研究进展[J].中医耳鼻喉科学研究,2011(1):5-9. 被引量：4
  • 2罗小东,贾振红,王强.一种新的变步长LMS自适应滤波算法[J].电子学报,2006,34(6):1123-1126. 被引量：127
  • 3胡沙沙,周群彪,吕学斌,陈正茂.基于UKF滤波算法的语音增强技术[J].四川大学学报（自然科学版）,2006,43(5):996-1000. 被引量：3
  • 4西蒙.赫金.自适应滤波器原理[M].北京:电子工业出版社.2006.
  • 5Fredric Lindstrom, Christian Schuldt, Ingvar Claesson. An Improvement of the Two-Path Algorithm Transfer Logic for Acoustic Echo Cancellation [ J ]. IEEE TRANSACTIONS ON AUDIO, SPEECH, AND LANGUAGE PROCESSING,2007, 15(4) : 1320 - 1326.
  • 6Heuberger P, VanDenHof P, Wahlberg B. Modelling and Identification with Rational Orthogonal Basis Functions [ M ]. 2005, Springer Verlag.
  • 7Volkan Nalbantoglu, Jozsef Bokor, etc. System identification with generalized orthonormal basis functions: an application to flexible structures [ J ]. Control Engineering Practice, 2003, 245 - 259.
  • 8Suresh R. Christopher L. William D. F/A-22 Vertical Tail Buffet Strength Certification [ R]. 46th AIAA/ASME/ASCE/ AHS/ASC Structures, Structural Dynamics & Materials Conference,18 -21 April 2005, Austin, Texas.
  • 9Boray G K,Srinath M D.Conjugate gradient techniques for adaptive filtering[J].IEEE Transactions on Circuits and Systems-I:Fundamental Theory and Application,1992,39(1):1.
  • 10Chang P H,Willson A N.Analysis of conjugate gradient algorithms for adaptive filtering[J].IEEE Transactions on Signal Processing,2000,48(2):409.

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四川大学学报（自然科学版）
2007年 第4期

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