TY - JOUR
T1 - Correct formulation of gradient characteristics for adaptive notch filters based on monotonically increasing gradient algorithm
AU - Koshita, Shunsuke
AU - Munakata, Hiroyuki
AU - Abe, Masahide
AU - Kawamata, Masayuki
N1 - Publisher Copyright:
Copyright © 2017 The Institute of Electronics, Information and Communication Engineers.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/7
Y1 - 2017/7
N2 - In the field of adaptive notch filtering, Monotonically Increasing Gradient (MIG) algorithm has recently been proposed by Sugiura and Shimamura [1], where it is claimed that the MIG algorithm shows monotonically increasing gradient characteristics. However, our analysis has found that the underlying theory in [1] includes crucial errors. This letter shows that the formulation of the gradient characteristics in [1] is incorrect, and reveals that the MIG algorithm fails to realize monotonically increasing gradient characteristics when the input signal includes white noise.
AB - In the field of adaptive notch filtering, Monotonically Increasing Gradient (MIG) algorithm has recently been proposed by Sugiura and Shimamura [1], where it is claimed that the MIG algorithm shows monotonically increasing gradient characteristics. However, our analysis has found that the underlying theory in [1] includes crucial errors. This letter shows that the formulation of the gradient characteristics in [1] is incorrect, and reveals that the MIG algorithm fails to realize monotonically increasing gradient characteristics when the input signal includes white noise.
KW - Adaptive notch filter
KW - Gradient characteristic
KW - MIG algorithm
KW - Monotonically increasing
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U2 - 10.1587/transfun.E100.A.1557
DO - 10.1587/transfun.E100.A.1557
M3 - Article
AN - SCOPUS:85021814463
VL - E100A
SP - 1557
EP - 1561
JO - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
JF - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
SN - 0916-8508
IS - 7
ER -