TY - GEN
T1 - Misalignment performance of selective tap adaptive algorithms for system identification of time-varying unknown systems
AU - Naylor, Patrick A.
AU - Khong, Andy W.H.
AU - Brookes, Mike
PY - 2007
Y1 - 2007
N2 - Selective tap algorithms have been proposed as a means of reducing complexity for adaptive filtering. MMax tap selection has been employed in many algorithms due to its straightforward implementation. This paper formulates the analysis of two MMax-based algorithms under time-varying unknown system conditions as are often, found in practical applications. The steady-state misalignment for the MMax normalized, least mean square and the MMax recursive least squares algorithms are derived and their performance is compared to that of their respective full-update algorithms. The tradeoff between computational complexity and misalignment performance is also shown, for the MMax normalized least mean, square case.
AB - Selective tap algorithms have been proposed as a means of reducing complexity for adaptive filtering. MMax tap selection has been employed in many algorithms due to its straightforward implementation. This paper formulates the analysis of two MMax-based algorithms under time-varying unknown system conditions as are often, found in practical applications. The steady-state misalignment for the MMax normalized, least mean square and the MMax recursive least squares algorithms are derived and their performance is compared to that of their respective full-update algorithms. The tradeoff between computational complexity and misalignment performance is also shown, for the MMax normalized least mean, square case.
KW - Acoustic echo cancellation
KW - Misalignment performance
KW - Partial update adaptive filtering
UR - http://www.scopus.com/inward/record.url?scp=34547549579&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34547549579&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2007.366625
DO - 10.1109/ICASSP.2007.366625
M3 - Conference contribution
AN - SCOPUS:34547549579
SN - 1424407281
SN - 9781424407286
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - I97-I100
BT - 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
T2 - 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
Y2 - 15 April 2007 through 20 April 2007
ER -