Results 271 to 280 of about 771,544 (300)

A variable step-size GMDF and its performance analysis

2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), 2011
Numerous time-domain variable step-size normalized least mean square algorithms have been derived to solve the dilemma of fast convergence rate or low excess mean-square error in the past two decades. This paper proposes a variable step-size control method for the generalized frequency-domain multidelay adaptive filter (GMDF), which is an attractive ...
Hsu Chang Huang, Junghsi Lee
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A simple variable step size LMS adaptive algorithm

International Journal of Circuit Theory and Applications, 2004
AbstractA new LMS based variable step size adaptive algorithm is presented. The step size is incremented or decremented by a small positive value, whenever the instantaneous error is positive or negative, respectively. The algorithm is simple, robust and efficient. It is characterized by fast convergence and low steady state mean squared error.
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A new Variable step-Size strategy for adaptive networks

2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), 2011
Several algorithms have been developed over the last few years that utilize the distributed nature of an ad hoc wireless sensor network to estimate a certain parameter of interest. One such algorithm is called the diffusion least mean squares (DLMS) algorithm.
Muhammad Omer Bin Saeed, Azzedine Zerguine   +1 more
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A variable step-size sign algorithm for channel estimation

Signal Processing, 2014
This paper proposes a new variable step-size sign algorithm (VSSA) for unknown channel estimation or system identification, and applies this algorithm to an environment containing two-component Gaussian mixture observation noise. The step size is adjusted using the gradient-based weighted average of the sign algorithm.
Yuan-Ping Li, Ta-Sung Lee, Bing-Fei Wu
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A New Robust Variable Step-Size NLMS Algorithm

IEEE Transactions on Signal Processing, 2008
A new framework for designing robust adaptive filters is introduced. It is based on the optimization of a certain cost function subject to a time-dependent constraint on the norm of the filter update. Particularly, we present a robust variable step-size NLMS algorithm which optimizes the square of the a posteriori error.
Leonardo Rey Vega, Hernan Rey, Jacob Benesty, Sara Tressens   +3 more
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A variable step size algorithm with generate-and-evaluate function

Proceedings of ISCAS'95 - International Symposium on Circuits and Systems, 2002
A new variable step-size algorithm which has a framework similar to the variable step (VS) adaptive filter algorithm given by R. W. Harris et al. (1986) is introduced. The methodology is to periodically invoke a generate-and-evaluate function during the adaptation.
Chi Yin Chung, Sin Chun Ng, Shu Hung Leung, Andrew Luk   +3 more
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Variable Step Size Multistep Methods for Parabolic Problems

SIAM Journal on Numerical Analysis, 1982
We study the error due to the discretization in time of a parabolic problem by variable step size multistep methods. It is proved that the multistep methods remain stable when the rate of step changing is not too great. Error estimates are obtained for A-stable and strongly $A(\Theta )$-stable methods $(0 \leqq \Theta \leqq {\pi / 2})$.
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A variable step size strategy for sparse system identification

10th International Multi-Conferences on Systems, Signals & Devices 2013 (SSD13), 2013
This work proposes a novel two-strategy approach to improve the performance of a recently-proposed (RZA-LMS) algorithm for sparse environments. The first and key strategy uses a novel h -norm-based variable step-size scheme to improve the performance of both the conventional and the RZA-LMS algorithms.
Muhammad O. Bin Saeed, Azzedine Zerguine
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A faster path-based algorithm with Barzilai-Borwein step size for solving stochastic traffic equilibrium models

European Journal of Operational Research, 2021
Muqing Du, Anthony Chen, Xiaoxia Ye
exaly  

A smoothing variable step size algorithm

IET International Conference on Wireless Mobile and Multimedia Networks Proceedings (ICWMMN 2006), 2006
null Yan Huo, null Li Fu, null Tao Jing, null Yu-min Feng   +3 more
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