Variable tap-length non-parametric variable step-size NLMS adaptive filtering algorithm for acoustic echo cancellation
SH Pauline, D Samiappan, R Kumar, A Anand, A Kar - Applied Acoustics, 2020 - Elsevier
In teleconferencing and communication systems, the use of Loudspeaker Enclosure
Microphone device leads to undesired echoes. To reduce these echoes, an acoustic echo …
Microphone device leads to undesired echoes. To reduce these echoes, an acoustic echo …
Exact expectation evaluation and design of variable step-size adaptive algorithms
P Lara, F Igreja, LDTJ Tarrataca… - IEEE Signal …, 2018 - ieeexplore.ieee.org
The choice of a fixed step size in adaptive filtering algorithms implies a conflict between the
convergence rate and the steady-state performance. In order to address this tradeoff more …
convergence rate and the steady-state performance. In order to address this tradeoff more …
Efficient Volterra systems identification using hierarchical genetic algorithms
The Volterra series consists of a powerful method for the identification of non-linear
relationships. However, the identification of the series active basis sets requires intense …
relationships. However, the identification of the series active basis sets requires intense …
An exact expectation model for the LMS tracking abilities
TTP Silva, P Lara, F Igreja… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
Nonstationary environments are ubiquitous in communications and acoustic systems. The
ability to track their dynamics is one of the most desirable features of adaptive processing …
ability to track their dynamics is one of the most desirable features of adaptive processing …
Analysis of the least mean squares algorithm with reusing coefficient vector
LC Resende, RMS Pimenta, NN Siqueira, F Igreja… - Signal Processing, 2023 - Elsevier
The coefficient reuse strategy is able to improve the steady-state performance of adaptive
filter algorithms, especially in very challenging low signal-to-noise scenarios. This paper …
filter algorithms, especially in very challenging low signal-to-noise scenarios. This paper …
New efficient subband structures for blind source separation
PB Batalheiro, MR Petraglia, DB Haddad - Signal Processing, 2021 - Elsevier
Convolutive mixtures of signals generated by more than one source and acquired by a set of
microphones are commonly found in acoustic signal processing applications. Subband …
microphones are commonly found in acoustic signal processing applications. Subband …
Constrained least mean square algorithm with coefficient reusing
The constrained least mean square (CLMS) algorithm is one of the most popular online
linear-equality-constrained beamforming algorithms. This paper demonstrates for the first …
linear-equality-constrained beamforming algorithms. This paper demonstrates for the first …
Advances on the analysis of the LMS algorithm with a colored measurement noise
P Lara, DB Haddad, L Tarrataca - Signal, Image and Video Processing, 2020 - Springer
Due to the inherent feedback feature of adaptive filtering algorithms, a comprehensive
theoretical understanding of their learning process is still challenging. In order to make the …
theoretical understanding of their learning process is still challenging. In order to make the …
On the Skewness of the LMS adaptive weights
TTP Silva, F Igreja, P Lara, L Tarrataca… - … on Circuits and …, 2021 - ieeexplore.ieee.org
The adjustable weights of adaptive filtering algorithms are usually assumed to obey a
Gaussian distribution. This is somewhat natural under maximal-entropy considerations …
Gaussian distribution. This is somewhat natural under maximal-entropy considerations …
Novel proportionate adaptive filters with coefficient vector reusing
In this paper, a new family of adaptive filtering algorithms is presented, which aims to
combine the small misalignment resulting from the reuse of past weight vectors with the fast …
combine the small misalignment resulting from the reuse of past weight vectors with the fast …