Multiple sub-filter adaptive noise canceller for fetal ECG extraction

JDK Abel, D Samiappan, R Kumar, SP Kumar - Procedia Computer …, 2019 - Elsevier
Non-invasive monitoring of fetal cardiac signs through the signal processing of maternal
abdominal signals has been emerging as a promising technique in the field of obstetrics and …

Tap-length optimization of adaptive filters used in stereophonic acoustic echo cancellation

A Kar, MNS Swamy - Signal Processing, 2017 - Elsevier
An adaptive filter with a large number of weights or taps is necessary for stereophonic
acoustic echo cancellation (SAEC), depending on the room impulse response and acoustic …

A new approach to extract fetal electrocardiogram using affine combination of adaptive filters

Y Xuan, X Zhang, SS Li, Z Shen, X **e… - ICASSP 2023-2023 …, 2023 - ieeexplore.ieee.org
The detection of abnormal fetal heartbeats during pregnancy is important for monitoring the
health conditions of the fetus. While adult ECG has made several advances in modern …

[PDF][PDF] Elucidating Clock-drift Using Real-world Audios In Wireless Mode For Time-offset Insensitive End-to-End Asynchronous Acoustic Echo Cancellation

P Nayak, M Shaik - Proc. Interspeech 2024, 2024 - isca-archive.org
External playback and microphone array devices connected over wireless channels lack a
common clock reference. This leads to non-linear asynchronous clock-drift effects with …

Exploring the potential of parallel adaptive filters for audio noise removal

M Hajiabadi - Signal, Image and Video Processing, 2024 - Springer
This paper presents a novel adaptive structure for audio noise removal, aiming to enhance
the performance of noise reduction. The proposed structure consists of a bank of parallel …

Convergence analysis for an undermodelled variable tap-length MSF-based stereophonic acoustic echo canceller

R Vanamadi, A Kar - Circuits, Systems, and Signal Processing, 2022 - Springer
Stereophonic acoustic echo cancellation (SAEC) applications of adaptive filters are complex
compared to monophonic AEC due to the presence of an additional acoustic channel. In …

[PDF][PDF] An improved variable structure adaptive filter design and analysis for acoustic echo cancellation

A Kar, M Chandra - Radioengineering, 2015 - pdfs.semanticscholar.org
In this research an advanced variable structure adaptive Multiple Sub-Filters (MSF) based
algorithm for single channel Acoustic Echo Cancellation (AEC) is proposed and analyzed …

[PDF][PDF] Performance Evaluation of Adaptive Algorithms for Monophonic Acoustic Echo Cancellation: A Technical

M Chandra, A Kar, P Goel - International Journal of Applied …, 2014 - researchgate.net
The problem of acoustic echo is well defined in case of hands-free communication. The
presence of large acoustic coupling between the loudspeaker and microphone would …

[PDF][PDF] Analysis the results of Acoustic Echo Cancellation for speech processing using LMS Adaptive Filtering Algorithm

R Tyagi, D Agrawal - International Journal of Computer Applications, 2012 - Citeseer
The Conventional acoustic echo canceller encounters problems like slow convergence rate
(especially for speech signal) and high computational complexity as the identification of the …

A novel variable tap-length learning algorithm for low complexity, fast converging stereophonic acoustic echo cancellation

A Kar, M Chandra - International Journal of Information and …, 2014 - inderscienceonline.com
An advanced low complexity, fast converging variable tap-length (VT) learning algorithm for
stereophonic acoustic echo cancellation (SAEC) based on multiple sub-filters (MSF) …