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Trajectory tracking of a quadrotor using extend state observer based U-model enhanced double sliding mode control (2023)
Journal Article
Li, R., Zhu, Q., Nemati, H., Yue, X., & Narayan, P. (2023). Trajectory tracking of a quadrotor using extend state observer based U-model enhanced double sliding mode control. Journal of The Franklin Institute, 360(4), 3520-3544. https://doi.org/10.1016/j.jfranklin.2022.11.036

This paper develops a novel U-model enhanced double sliding mode controller (UDSMC) for a quadrotor based on multiple-input and multiple-output extended-state-observer (MIMO-ESO). UDSMC is designed using Lyapunov synthesis and Hurwitz stability to no... Read More about Trajectory tracking of a quadrotor using extend state observer based U-model enhanced double sliding mode control.

Formation flying along libration point orbits using chattering attenuation sliding mode control (2022)
Journal Article
Bando, M., Namati, H., Akiyama, Y., & Hokamoto, S. (in press). Formation flying along libration point orbits using chattering attenuation sliding mode control. Frontiers in Space Technologies, 3, 919932. https://doi.org/10.3389/frspt.2022.919932

This paper studies a control law to achieve formation flying in cislunar space. Utilizing the eigenstructure of the linearized flow around a libration point of the Earth-Moon circular restricted three-body problem, the fuel efficient formation flying... Read More about Formation flying along libration point orbits using chattering attenuation sliding mode control.

A new configuration of composite nonlinear feedback control for nonlinear systems with input saturation (2022)
Journal Article
Zhu, Q., Mobayen, S., Nemati, H., Zhang, J., & Wei, W. (2023). A new configuration of composite nonlinear feedback control for nonlinear systems with input saturation. Journal of Vibration and Control, 29(5-6), 1417-1430. https://doi.org/10.1177/10775463211064010

This study proposes a U-control–based Composite Nonlinear Feedback (U-CNF) design procedure. This U-CNF control establishes a double feedback loop framework for generalisation and simplification in designing the CNF control systems. Two controllers,... Read More about A new configuration of composite nonlinear feedback control for nonlinear systems with input saturation.

A fuzzy paradigmatic clustering algorithm (2019)
Journal Article
Amirjavid, F., Barak, S., & Nemati, H. (2019). A fuzzy paradigmatic clustering algorithm. IFAC-PapersOnLine, 52(13), 2360-2365. https://doi.org/10.1016/j.ifacol.2019.11.559

Clustering algorithms resume the datasets into few number of data points such as centroids or medoids, which explain the entire dataset briefly. In the domain of data-driven machine learning, the more precision with the clustering rule leads directly... Read More about A fuzzy paradigmatic clustering algorithm.

Analysis and Design of a Multi-Channel Time-Varying Sliding Mode Controller and its Application in Unmanned Aerial Vehicles (2018)
Journal Article
Nemati, H., & Montazeri, A. (2018). Analysis and Design of a Multi-Channel Time-Varying Sliding Mode Controller and its Application in Unmanned Aerial Vehicles. IFAC-PapersOnLine, 51(22), 244-249. https://doi.org/10.1016/j.ifacol.2018.11.549

This study introduces a new multi-channel robust nonlinear control algorithm based on the theory of the time-varying sliding mode control (TVSMC) strategy to stabilize the attitude of an unmanned aerial vehicle (UAV) for nuclear decommissioning appli... Read More about Analysis and Design of a Multi-Channel Time-Varying Sliding Mode Controller and its Application in Unmanned Aerial Vehicles.

Chattering attenuation sliding mode approach for nonlinear systems (2017)
Journal Article
Nemati, H., Bando, M., & Hokamoto, S. (2017). Chattering attenuation sliding mode approach for nonlinear systems. Asian Journal of Control, 19(4), 1519-1531. https://doi.org/10.1002/asjc.1477

This study introduces a new robust nonlinear control scheme based on the theory of nonsingular terminal sliding mode control (NTSMC). Since conventional NTSMC utilizes a discontinuous switching function, a significant flaw called chattering can occur... Read More about Chattering attenuation sliding mode approach for nonlinear systems.

Trajectory design using the center manifold theory in the circular restricted three-body problem (2016)
Journal Article
Akiyama, Y., Bando, M., Nemati, H., & Hokamoto, S. (2016). Trajectory design using the center manifold theory in the circular restricted three-body problem. Transactions of the Japan Society for Aeronautical and Space Sciences, 14(ists30), Pd_151-Pd_158. https://doi.org/10.2322/tastj.14.pd_151

Lagrangian points are libration points in the circular restricted three-body problem. Three of them are collinear libration points, and known to have unstable periodic and quasi-periodic orbits in the vicinity of themselves. This study aims to desig... Read More about Trajectory design using the center manifold theory in the circular restricted three-body problem.

New Chattering Attenuation Sliding Mode Control of a Flexible Spacecraft (2014)
Journal Article
Nemati, H., & Hokamoto, S. (2014). New Chattering Attenuation Sliding Mode Control of a Flexible Spacecraft. Transactions of the Japan Society for Aeronautical and Space Sciences, 12(ists29), Pd_71-Pd_77. https://doi.org/10.2322/tastj.12.pd_71

An improved sliding mode control (SMC) strategy for the attitude control problem of a nonlinear spacecraft with an elastic appendage is investigated. Since conventional sliding mode controllers include a discontinuous function, a significant problem... Read More about New Chattering Attenuation Sliding Mode Control of a Flexible Spacecraft.