Time-varying disturbance observer based on sliding-mode observer and double phases fixed-time sliding mode control for a T-S fuzzy micro-electro-mechanical system gyroscope

Giap, Van Nam; Nguyen, Quang Dung; Trung, Nguyen Kien; Huang, Shyh‐Chour

doi:10.1177/10775463211073199

Cited by 15 publications

(7 citation statements)

References 39 publications

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“…Herein, the FTS concept in [33,34] are used to design the SMC for the synchronization of two nonidentical chaotic systems. The basic concepts of fixed-time stability are below.…”

Section: Fixed-time Sliding Mode Controlmentioning

confidence: 99%

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A Novel Disturbance Rejection Method Based on Robust Sliding Mode Control for the Secure Communication of Chaos-Based System

et al. 2022

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This paper mainly proposes a new disturbance observer (DO) for a secure communication system (SCS) of the chaos-based system (CBS). First, the fractional-order (FO) Chen chaotic system is remodeled by a Takagi–Sugeno (T–S) fuzzy system with the aim of softening in calculation. Second, the robust fixed-time was designed to synchronize two nonidentical chaotic systems. Third, a new disturbance observer was proposed to compensate for the disturbance and uncertainty of the secure communication system. Fourth, the proof of the proposed method based on Lyapunov condition together with simulation are given to illustrate the correctness and effectiveness of the proposed theory. The tested disturbance on the public channel was mostly compensated by the appropriately estimated disturbance value. The states of master and slave systems (MSSs) were closed to each other in fixed-time. These factors are used to confirm that the symmetry of two chaotic systems were obtained by the proposed control methods.

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“…Herein, the FTS concept in [33,34] are used to design the SMC for the synchronization of two nonidentical chaotic systems. The basic concepts of fixed-time stability are below.…”

Section: Fixed-time Sliding Mode Controlmentioning

confidence: 99%

“…Taking advantage of the double-phase fixed-time SMC [34], the FO fixed-time SMC is designed for the secure communication system with the surface of SMC for each axis designed as below.…”

Section: Fixed-time Smc For Scsmentioning

confidence: 99%

A Novel Disturbance Rejection Method Based on Robust Sliding Mode Control for the Secure Communication of Chaos-Based System

et al. 2022

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“…The basic concept of LMI can be found in [1]. The proposed disturbance observer in this paper is based on the background of the inversed model-based in previous papers [32][33][34][35]. The proposed disturbance observer can overcome the illnesses of previous papers [36][37][38] with the requirement of the boundary of the rst derivative disturbance value.…”

Section: Introductionmentioning

confidence: 99%

An Optimal Homogenous Stability-Based Disturbance Observer and Sliding Mode Control for Secure Communication System

Nguyen

Pham²,

Thanh

et al. 2023

IEEE Access

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To prevent the loss of data or distortion of the real sent data in the secure communication, the disturbance and uncertainty rejection is very important technique. Especially, the secure communication of the chaotic system, where the master and slave systems are used to encrypt and decrypt the signal. These systems are should be a chaotic. The chaotic system is unpredictable and unstable. The security is obtained if the master and slave systems are synchronizing. Therefore, this paper proposes a new disturbance observer (DO) for estimating attacked signals on public channels and uncertain values of the secure communication system (SCS). First, a new condition of the reaching law was proposed via a homogenous stability condition, which was used to construct the disturbance observer and synchronization controller. Second, the proposed stability is applied to design a new DO for estimating the attacked signals on the public channels and the variations of the parameters of all master and slave systems (MSSs). Third, the MSSs were synchronized by the sliding mode control (SMC) with the same reaching law with the proposed DO. The calculations of controller and observer designs were based on the Takagi-Sugeno fuzzy (TSF) system, where the MSSs were taken into account as the fuzzy system. However, the TSF was used for calculation only. The original chaotic of MSSs were used to keep the characteristics of the chaos phenomenon. Final, the mathematically proven was provided to show the corrections of the proposed methods. To show the superior powers of the proposed method, the simulation of MATLAB software and experiment of local network via the internet router were used to conduct the logical analysis. The tested disturbances and uncertainties were mostly compensated by the proposed DO.

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“…The applications of TSF in control systems can be found in [21], [22], [23], and [24]. The basic concept of DO in this paper is originally based on the concepts of observer in [25], [26], and [27]. The DO in this paper is no need the condition of disturbance source such as [28].…”

Section: Introductionmentioning

confidence: 99%

Disturbance Observer Based on Sliding Mode Control for Secure Communication of Chaotic Circuits

et al. 2023

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To prevent the distortion of the data transmission, the disturbance compensation method is highly required in the communication system. Therefore, the variations of parameters on both master and slave of secure communication and attacked signals all should be compensated to remain the sent data as its after decrypting. However, to reject these unwanted signals, the time varying disturbance rejection technique is requested. The time varying disturbance observer (DO) is able to reject both low and high frequency disturbances. Furthermore, the template of the sources of the disturbances are free. To meet the goal of robust control, first, the Liu chaotic system is used to represent the master and slave systems (MSSs). Second, the disturbance observer was proposed on the side of slave system together with the controller, which used to reject the parameters variations and disturbances on the public channels. Third, the sliding mode control was proposed to synchronize the slave and master systems. Final, the mathematical stability is provided based on the Lyapunov condition. Furthermore, to show the power and effectiveness of the given theory, the circuit realization was used to conduct the theoretical analysis. The sent and received messages were mostly identical, which is used to confirm that the proposed theory on the secure communication of chaotic circuits is good both in synchronization and disturbance rejection also.

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Time-varying disturbance observer based on sliding-mode observer and double phases fixed-time sliding mode control for a T-S fuzzy micro-electro-mechanical system gyroscope

Cited by 15 publications

References 39 publications

A Novel Disturbance Rejection Method Based on Robust Sliding Mode Control for the Secure Communication of Chaos-Based System

A Novel Disturbance Rejection Method Based on Robust Sliding Mode Control for the Secure Communication of Chaos-Based System

An Optimal Homogenous Stability-Based Disturbance Observer and Sliding Mode Control for Secure Communication System

Disturbance Observer Based on Sliding Mode Control for Secure Communication of Chaotic Circuits

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