Comments on “Design of momentum fractional LMS for Hammerstein nonlinear system identification with application to electrically stimulated muscle model”
Department of Mathematics, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Avenue, 010000, Nur-Sultan, Kazakhstan
2 Bio-Imaging, Signal Processing, and Learning Lab., Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, 34141, Daejeon, South Korea
3 Department of Computer Science, University of Engineering and Technology Taxila, 47080, Taxila, Pakistan
Accepted: 23 April 2021
Published online: 5 October 2021
The purpose of this article is to discuss some aspects of the convergence analysis performed in the paper (Design of momentum fractional LMS for Hammerstein nonlinear system identification with application to electrically stimulated muscle model, Eur Phys J Plus 134: 407, 2019). It is highlighted that the way the authors prove convergence suffers a lack of correct and valid mathematical justifications.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021