TY - GEN
T1 - A class of adaptively regularised PNLMS algorithms
AU - Jelfs, Beth
AU - Mandic, Danilo P.
AU - Benesty, Jacob
PY - 2007
Y1 - 2007
N2 - A class of algorithms representing a robust variant of the proportionate normalised least-mean-square (PNLMS) algorithm is proposed. To achieve this, adaptive regularisation is introduced within the PNLMS update, with the analysis conducted for both individual and global regularisation factors. The update of the adaptive regularisation parameter is also made robust, to improve steady state performance and reduce computational complexity. The proposed algorithms are better suited not only for operation in nonstationary environments, but are also less sensitive to changes in the input dynamics and the choice of their parameters. Simulations in a sparse environment show the proposed class of algorithms offer enhanced performance and increased stability over the standard PNLMS.
AB - A class of algorithms representing a robust variant of the proportionate normalised least-mean-square (PNLMS) algorithm is proposed. To achieve this, adaptive regularisation is introduced within the PNLMS update, with the analysis conducted for both individual and global regularisation factors. The update of the adaptive regularisation parameter is also made robust, to improve steady state performance and reduce computational complexity. The proposed algorithms are better suited not only for operation in nonstationary environments, but are also less sensitive to changes in the input dynamics and the choice of their parameters. Simulations in a sparse environment show the proposed class of algorithms offer enhanced performance and increased stability over the standard PNLMS.
KW - Adaptive regularisation
KW - LMS
KW - Normalised LMS (NLMS)
KW - Proportionate NLMS (PNLMS)
UR - http://www.scopus.com/inward/record.url?scp=47649132467&partnerID=8YFLogxK
U2 - 10.1109/ICDSP.2007.4288508
DO - 10.1109/ICDSP.2007.4288508
M3 - Conference contribution
AN - SCOPUS:47649132467
SN - 1424408822
SN - 9781424408825
T3 - 2007 15th International Conference on Digital Signal Processing, DSP 2007
SP - 19
EP - 22
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 -