Browse > Article
http://dx.doi.org/10.7236/JIWIT.2011.11.5.059

A Lattice Transversal Joint Adaptive Filter with Fixed Reflection Coefficients  

Yoo, Jae-Ha (한경대학교 전자공학과)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.11, no.5, 2011 , pp. 59-63 More about this Journal
Abstract
We present a lattice transversal joint (LTJ) adaptive filter with fixed reflection coefficients to achieve fast convergence with low complexity. The reflection coefficients of the filter are given by the statistics of speech signals, and the proposed order of the lattice predictor is one. Experimental results confirm that as compared to the adaptive transversal filter, the proposed adaptive filter achieves fast convergence with a negligible increase in complexity. The proposed adaptive filter converges around six times faster than the adaptive transversal filter in case of the band-limited voiced signal from the ITU-T G.168 standard.
Keywords
Adaptive filter; Lattice filter; Reflection coefficients; Speech signal; Convergence;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Fundamentals of Adaptive Filtering, John Wiley & Sons, 2003.
2 E. H. Satorious and S. T. Alexander, "Channel equalization using adaptive lattice algorithm," IEEE Transactions on Communication, vol. 27, pp. 899-905, June, 1979.   DOI
3 Jae-Ha Yoo, Sung-Ho Cho and Dae-Hee Youn, "An acoustic echo cancellation based on the adaptive lattice-transversal joint (LTJ) filter structure," IEICETransactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. E81-A (9), pp. 1951-1954, September, 1998.
4 Naoki Tokui, Kenji Nakayama and Akihiro Hirano, "A synchronized learning algorithm for reflection coefficients and tap weight in a joint lattice predictor and transversal filter," Proceedings of International Conference on Acoustics, Speech, and Signal Processing, 2001.
5 Jae-Ha Yoo, "A general analysis and complexity reduction for the lattice transversal joint adaptive filter," International Technical Conference on Circuits/Systems, Computers and Communications, 2002.
6 Naoki Tokui, Kenji Nakayama and Akihiro Hirano, "Block implementation of a synchronized learning algorithm in adaptive lattice filters," Proceedings of International Conference on Acoustics, Speech, and Signal Processing, 2003.
7 http://www.ee.ic.ac.uk/hp/staff/dmb/voicebox/ voice box. html.
8 ITU-T G.168 : Recommendations for Digital Network Echo Cancellers, International Telecommunication Union Telecommunication Standardization Sector, August, 2004.