Fixed-Time Sliding Mode Control for Robotic Manipulators Based on Disturbance Observer by Tianli Li, Gang Zhang, Tan Zhang, Jing Pan

“…A novel controller using fixed-time sliding mode (FTSM) and fixed-time disturbance observer (FTDO) is proposed to achieve trajectory tracking control of robotic manipulators. …”
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Disturbance Observer-Based Dynamic Surface Control for Servomechanisms with Prescribed Tracking Performance by Xingfa Zhao, Wenhe Liao, Tingting Liu, Dongyang Zhang, Yumin Tao

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Chaos Synchronization Based on Unknown Input Proportional Multiple-Integral Fuzzy Observer by T. Youssef, M. Chadli, H. R. Karimi, M. Zelmat

“…This paper presents an unknown input Proportional Multiple-Integral Observer (PIO) for synchronization of chaotic systems based on Takagi-Sugeno (TS) fuzzy chaotic models subject to unmeasurable decision variables and unknown input. …”
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An observer for a nonlinear age-structured model of a harvested fish population by Diène Ngom, A. Iggidir, Aboudramane Guiro, Abderrahim Ouahbi

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Observer-Based Bounded Control for Discrete Time-Delay Uncertain Nonlinear Systems by Bei Wu, Mou Chen, Xiaoming Chen

“…Suppose that the disturbance is generated by an exogenous system; a disturbance observer is designed to estimate the unknown disturbance. …”
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Fault Estimation Method for Nonlinear Systems With Perturbations Based on Augmented Fault Observer by Yanxiu Sun, Ying Du, Yuping Zhang

Subjects: “…Fault observer…”
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Adaptive Integral Observer-Based Synchronization for Chaotic Systems with Unknown Parameters and Disturbances by Xiuchun Li, Jianhua Gu, Wei Xu

“…Considering the effects of external perturbations on the state vector and the output of the original system, this paper proposes a new adaptive integral observer method to deal with chaos synchronization between the drive and response systems with unknown parameters. …”
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Observer-Based Control Design for Nonlinear Networked Control Systems with Limited Information by Yilin Wang, Zhengrong Xiang, Hamid Reza Karimi

“…This paper is concerned with the problem of designing a robust observer-based controller for discrete-time networked systems with limited information. …”
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Mathematical Modeling of Traffic Flow in Kampala City Using the Moving Observer Method by Okiza,Humphrey, Muhwezi, Lawrence, Omwonylee, Okello Joseph, Awichi, Richard Opaka, Nuwagaba, Savannah

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The Observed Phase Space of Mass-loss History from Massive Stars Based on Radio Observations of a Large Supernova Sample by Itai Sfaradi, Assaf Horesh, Rob Fender, Lauren Rhodes, Joe Bright, David Williams-Baldwin, Dave A. Green

“…In this work, we study the circumstellar material (CSM) around massive stars, and the mass-loss rates depositing this CSM, using a large sample of radio observations of 325 core-collapse supernovae (CCSNe; only ~22% of them being detected). …”
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Impact Evaluation of Assimilating Surface Sensitive Infrared Radiance Observations over Land and Sea Ice from Observing System Simulation Experiments by S. K. Dutta, L. Garand, S. Heilliette

“…In this study, Observing System Simulation Experiments (OSSEs) are conducted to analyze the impact of assimilating surface sensitive infrared radiance observations over land and sea ice. …”
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Inter-reader agreement for diagnosing thymic cysts on chest MRI in two tertiary referral centers by Yura Ahn, Sang Min Lee, Chu Hyun Kim, Sehee Kim, Jooae Choe, Joon Beom Seo, Ho Yun Lee

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Use of an observer tool to enhance learning of anaesthesia resident’s non-technical skills during high-fidelity simulation: a randomised controlled trial by Caroline Havard, Viridiana Jouffroy, Agnès Le Gouez, Marie Bruyère, Samy Figueiredo, Philippe Roulleau, Dan Benhamou, Aurore Margat, Antonia Blanié

Subjects: “…Observer tool…”
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Collision detection and external force estimation for robot manipulators using a composite momentum observer by Benaoumeur Ibari, Mourad Hebali, Baghdadi Rezali, Menaouer Bennaoum

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A Finite-Time Fractional-Order Error Extended State Observer for Hypersonic Vehicle by Mingfei Zhao, Jia Song, Yunlong Hu, Wenling Li

“…Theoretical analysis has confirmed that the observation error of FTFOEESO is uniformly bounded. …”
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Similarities and differences between exosystem-model-based disturbance observer and model error compensator by Kana Shikada, Noboru Sebe

Subjects: “…disturbance observer…”
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Faults Detection Using Sliding Mode Observer and Its Application on Elevating Servo Systems by Lingfei Tian, Linfang Qian, Miao Li, Jiawei Fu

“…The observer’s parameter matrices are obtained by the linear matrix inequality. …”
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Disturbance Observer-Based Nonsingular Terminal Sliding Mode Control for Spacecraft Electromagnetic Docking by Jinghui Zhang, Guoqiang Zeng, Shifeng Zhang

“…This paper presents a novel nonlinear sliding mode control scheme that combines on-line model modification, a nonlinear sliding mode controller, and a disturbance observer to solve the essential problems in spacecraft electromagnetic docking control, such as model uncertainties, unknown external disturbances, and inherent strong nonlinearity and coupling. …”
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Simulating Crowd Evacuation in a Social Force Model with Iterative Extended State Observer by Juan Wei, Wenjie Fan, Zhongyu Li, Yangyong Guo, Yuanyuan Fang, Jierui Wang

“…In order to depict this process, the social force model is improved based on an iterative extended state observer so that the crowds can move along the optimal evacuation path. …”
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High-Gain Observer in Fuel Cell and Cascaded DC-DC Boost Converter System by Nady Soukaina, El Fadil Hassan, Lassioui Abdellah, El Asri Yassine, Hasni Anwar

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