An Improved Adaptive Filtering Algorithm Based on Projection of Gradient Vectors and Its Application in Multi-channel Acoustic Echo Cancellation

Widrow B, Stearns S D. Adaptive Signal Processing, Englewood Cliffs, NJ: Prentice-Hall, 1985:98-116.[2]Haykin S. Adaptive Filter Theory. 3rd Editon, Englewood Cliffs, NJ: Prentice-Hall, 1996: 432-437.[3]Ozeki K, Umeda T. An adaptive filtering algorithm using an orthogonal projection to an affine subspace and its properties. Electronics and Communications in Japan, 1984, 67-A(5): 19-27.[4]Proakis J G. Channel identification for high speed digital communications. IEEE Trans. on Automat. Contl., 1974, AC-19(6): 916-922.[5]Lim J S. Fast adaptive filtering algorithm based on exponentially weighted least-square errors.Electron. Left., 1999, 35(22): 1913-1915.[6]Lim J S. New adaptive filtering algorithms based on an orthogonal projection of gradient vectors[J].IEEE Signal Processing Letters.2000, 7(11):314-317[7]周元建,谢胜利.带有旋转因子的多路回波消除自适应滤波算法.电子学报,2001,29(10):1360-1363.[8]Benesty J, Duhamel P, Grenier Y. A multi-channel affine projection algorithm with applications to multi-channel acoustic echo cancellation[J].IEEE Signal Processing Left.1996, 3(2):35-37[9]Sankaran S G. Stereophonic acoustic echo cancellation using NLMS with orthogonal correction factors [A]. in Proceedings of the 1999 International Workshop on Acoustic Echo and Noise Control (IWAENC) [C], Procaine Manor, 1999: 40-43.[10]Tangsangiumvisai N, Chambers J A, Constantinides A G. Higher-order time-varying allpass filters for signal decorrelation in stereophonic acoustic echo cancellation. Electron. Left., 1999, 35(1):88-90.