Terminal zeroing neural network for time-varying matrix computing under bounded noise

To improve the convergence performance of zeroing neural network (ZNN) for time-varying matrix computation problems solving, a terminal zeroing neural network (TZNN) with noise resistance and its logarithmically accelerated form (LA-TZNN) were proposed. The terminal attraction of the error dynamic e...

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Main Authors: ZHONG Guomin, TANG Yifei, SUN Mingxuan
Format: Article
Language:zho
Published: Editorial Department of Journal on Communications 2024-09-01
Series:Tongxin xuebao
Subjects:
Online Access:http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024166/
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author ZHONG Guomin
TANG Yifei
SUN Mingxuan
author_facet ZHONG Guomin
TANG Yifei
SUN Mingxuan
author_sort ZHONG Guomin
collection DOAJ
description To improve the convergence performance of zeroing neural network (ZNN) for time-varying matrix computation problems solving, a terminal zeroing neural network (TZNN) with noise resistance and its logarithmically accelerated form (LA-TZNN) were proposed. The terminal attraction of the error dynamic equation were analyzed, and the results showed that the neural state of the proposed networks can converge to the theoretical solution within a fixed time when subjected to bounded noises. In addition, the LA-TZNN could achieve logarithmical settling-time stability, and its convergence speed was faster than the TZNN. Considering that the initial error was bounded in actual situations, an upper bound of the settling-time in a semi-global sense was given, and an adjustable parameter was set to enable the network to converge within a predefined time. The two proposed models were applied to solve the time-varying matrix inversion and trajectory planning of redundant manipulators PUMA560. The simulation results further verified that compared with the conventional ZNN design, the proposed methods have shorter settling-time, higher convergence accuracy, and can effectively suppress bounded noise interference.
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publisher Editorial Department of Journal on Communications
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spelling doaj-art-f9015fa5b7eb49c29335a54dc533e5692025-01-14T07:25:05ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2024-09-0145556773359236Terminal zeroing neural network for time-varying matrix computing under bounded noiseZHONG GuominTANG YifeiSUN MingxuanTo improve the convergence performance of zeroing neural network (ZNN) for time-varying matrix computation problems solving, a terminal zeroing neural network (TZNN) with noise resistance and its logarithmically accelerated form (LA-TZNN) were proposed. The terminal attraction of the error dynamic equation were analyzed, and the results showed that the neural state of the proposed networks can converge to the theoretical solution within a fixed time when subjected to bounded noises. In addition, the LA-TZNN could achieve logarithmical settling-time stability, and its convergence speed was faster than the TZNN. Considering that the initial error was bounded in actual situations, an upper bound of the settling-time in a semi-global sense was given, and an adjustable parameter was set to enable the network to converge within a predefined time. The two proposed models were applied to solve the time-varying matrix inversion and trajectory planning of redundant manipulators PUMA560. The simulation results further verified that compared with the conventional ZNN design, the proposed methods have shorter settling-time, higher convergence accuracy, and can effectively suppress bounded noise interference.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024166/time-varying matrix computationZNNfixed/predefined-time convergencerepetitive motion planning
spellingShingle ZHONG Guomin
TANG Yifei
SUN Mingxuan
Terminal zeroing neural network for time-varying matrix computing under bounded noise
Tongxin xuebao
time-varying matrix computation
ZNN
fixed/predefined-time convergence
repetitive motion planning
title Terminal zeroing neural network for time-varying matrix computing under bounded noise
title_full Terminal zeroing neural network for time-varying matrix computing under bounded noise
title_fullStr Terminal zeroing neural network for time-varying matrix computing under bounded noise
title_full_unstemmed Terminal zeroing neural network for time-varying matrix computing under bounded noise
title_short Terminal zeroing neural network for time-varying matrix computing under bounded noise
title_sort terminal zeroing neural network for time varying matrix computing under bounded noise
topic time-varying matrix computation
ZNN
fixed/predefined-time convergence
repetitive motion planning
url http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2024166/
work_keys_str_mv AT zhongguomin terminalzeroingneuralnetworkfortimevaryingmatrixcomputingunderboundednoise
AT tangyifei terminalzeroingneuralnetworkfortimevaryingmatrixcomputingunderboundednoise
AT sunmingxuan terminalzeroingneuralnetworkfortimevaryingmatrixcomputingunderboundednoise