TY - GEN
T1 - Acoustic echo cancellation with reduced-rank adaptive interpolated filter based on parallel-branch diversity decimation
AU - Yukawa, Masahiro
AU - De Lamare, Rodrigo C.
AU - Sampaio-Neto, Raimundo
PY - 2007/12/1
Y1 - 2007/12/1
N2 - This paper presents an efficient acoustic echo cancellation (AEC) scheme based on reduced-rank interpolated adaptive filtering with parallel decimation, motivated by diversity techniques developed in wireless communications. The proposed scheme jointly optimizes an interpolation filter, a decimator unit and a reduced-rank filter in such a way that the output error is minimized, leading to very substantial improvements of the mean squared error performance. With a practical choice of parameters in AEC, the total computational complexity of the proposed scheme is approximately half of the one of the NLMS algorithm. The numerical examples demonstrate that the proposed algorithm offers very significant reduction in mean squared error performance.
AB - This paper presents an efficient acoustic echo cancellation (AEC) scheme based on reduced-rank interpolated adaptive filtering with parallel decimation, motivated by diversity techniques developed in wireless communications. The proposed scheme jointly optimizes an interpolation filter, a decimator unit and a reduced-rank filter in such a way that the output error is minimized, leading to very substantial improvements of the mean squared error performance. With a practical choice of parameters in AEC, the total computational complexity of the proposed scheme is approximately half of the one of the NLMS algorithm. The numerical examples demonstrate that the proposed algorithm offers very significant reduction in mean squared error performance.
KW - Adaptive interpolation
KW - Echo cancellation
KW - Parallel-branch diversity
KW - Reduced-rank adaptive filtering
UR - http://www.scopus.com/inward/record.url?scp=47649129846&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=47649129846&partnerID=8YFLogxK
U2 - 10.1109/ICDSP.2007.4288513
DO - 10.1109/ICDSP.2007.4288513
M3 - Conference contribution
AN - SCOPUS:47649129846
SN - 1424408822
SN - 9781424408825
T3 - 2007 15th International Conference on Digital Signal Processing, DSP 2007
SP - 39
EP - 42
BT - 2007 15th International Conference on Digital Signal Processing, DSP 2007
T2 - 2007 15th International Conference onDigital Signal Processing, DSP 2007
Y2 - 1 July 2007 through 4 July 2007
ER -