Novel knacks of chaotic maps with Archimedes optimization paradigm for nonlinear ARX model identification with key term separation

Mehmood, Khizer; Chaudhary, Naveed Ishtiaq; Khan, Zeshan Aslam; Cheema, Khalid Mehmood; Raja, Muhammad Asif Zahoor; Shu, Chi-Min

doi:10.1016/j.chaos.2023.114028

Cited by 14 publications

(3 citation statements)

References 78 publications

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“…The SITS system has two characteristic roots with positive real parts when h 0 K = , and the system is unstable. It can be concluded that the eigenvalues all have negative real parts by substituting εl C and εh C into the characteristic Equation (36), and this simultaneously satisfies the stability constraints of Equation (39), indicating that the SITS is asymptotically stable. Therefore, the proposed hybrid simulation system with SCVG is stable.…”

Section: Simulation Verification Of the Effect For Scvgmentioning

confidence: 90%

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Stability Analysis and Delay Compensation for Space Instable Target Simulator

Bai,

Li,

Zhao

et al. 2024

Actuators

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The space instable target simulator (SITS) is a vital actuator for ground verification of on-orbital capture technology, the motion performance of which directly affects simulation credibility. Different delays reduce the stability of SITS and ultimately lead to its divergence. In order to achieve high-fidelity simulation, the impacts of force measurement delay, the discrete control cycle, and simulator response delay on stability are analyzed first. Then, the dynamic equation and transfer function identification model of the hybrid simulator is constructed, and the necessary and sufficient conditions of its stability and convergence are obtained using the Routh criterion. After that, a novel switching compensator with variable gain is proposed to reduce the superimposed effects of the three delays, the compensation principle diagram of which was built, and its mathematical model including the energy observer and nonlinear tracking differentiator is also established. Finally, three sets of numerical simulations were conducted to validate the correctness of the stability analysis and effectiveness of the proposed compensation method. The simulation results show that all three types of delays can cause SITS to lose stability under critical stable motion states, and the delay in force measurement has the greatest impact, followed by the influence of the control cycle. Compared with the force applied to the simulated target, the velocity, and the recovery coefficient of the space instable target using fixed gain and linear gain compensation, the proposed compensator has significantly better performance.

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Section: Simulation Verification Of the Effect For Scvgmentioning

confidence: 90%

“…To ensure the stability of SITS, the coefficients in the first column of the Routh array must be positive, as illustrated in Equation (39).…”

Section: Stability and Steady-state Error Analysismentioning

confidence: 99%

Stability Analysis and Delay Compensation for Space Instable Target Simulator

Bai,

Li,

Zhao

et al. 2024

Actuators

View full text Add to dashboard Cite

show abstract

“…Hassan introduces a multi-objective variant of the marine predator's algorithm (MPA), incorporating concepts from Quantum theory to enhance the MPA's ability to balance between exploration and exploitation [35]. Mehmood combines Archimedes' optimization algorithm (AOA) with chaotic maps to optimize complex engineering problems [36]. Zhou introduces LASMA, a local dimensional mutation strategy, and an all-dimensional neighborhood search strategy for the slime mould algorithm (SMA) to improve the algorithm's exploration and exploitation abilities [37].…”

Section: Literature Reviewmentioning

confidence: 99%

Advanced RIME architecture for global optimization and feature selection

Abu Khurma,

Braik,

Alzaqebah

et al. 2024

J Big Data

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The article introduces an innovative approach to global optimization and feature selection (FS) using the RIME algorithm, inspired by RIME-ice formation. The RIME algorithm employs a soft-RIME search strategy and a hard-RIME puncture mechanism, along with an improved positive greedy selection mechanism, to resist getting trapped in local optima and enhance its overall search capabilities. The article also introduces Binary modified RIME (mRIME), a binary adaptation of the RIME algorithm to address the unique challenges posed by FS problems, which typically involve binary search spaces. Four different types of transfer functions (TFs) were selected for FS issues, and their efficacy was investigated for global optimization using CEC2011 and CEC2017 and FS tasks related to disease diagnosis. The results of the proposed mRIME were tested on ten reliable optimization algorithms. The advanced RIME architecture demonstrated superior performance in global optimization and FS tasks, providing an effective solution to complex optimization problems in various domains.

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Identification of fractional Hammerstein systems with the conformable fractional derivative

Zhang,

Mi,

Zheng

2024

Adaptive Control & Signal

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SummaryIn this article, we study parameter estimation problems for fractional commensurate Hammerstein systems utilizing the conformable fractional derivative. Two algorithms are investigated: first, the Poisson moment functions (PMF) method, aiming to transfer the fractional derivative of the measurement signal into PMF using the fractional Laplace transform and convolution; second, a proposed new instrumental variable algorithm, which is based on the conformable fractional derivative. Both algorithms have been analyzed and shown to be consistent. A comprehensive complexity analysis is provided for each algorithm. Furthermore, a kind of special time‐varying systems are discussed under the conformable fractional derivative. Finally, an example is given to illustrate the effectiveness of the proposed algorithms.

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Novel knacks of chaotic maps with Archimedes optimization paradigm for nonlinear ARX model identification with key term separation

Cited by 14 publications

References 78 publications

Stability Analysis and Delay Compensation for Space Instable Target Simulator

Stability Analysis and Delay Compensation for Space Instable Target Simulator

Advanced RIME architecture for global optimization and feature selection

Identification of fractional Hammerstein systems with the conformable fractional derivative

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