radioelectronicsИзвестия высших учебных заведений России. РадиоэлектроникаJournal of the Russian Universities. Radioelectronics1993-89852658-4794Saint Petersburg Electrotechnical University10.32603/1993-8985-2022-25-4-63-71radioelectronics-662Research ArticleРАДИОЛОКАЦИЯ И РАДИОНАВИГАЦИЯRADAR AND NAVIGATIONEstimating Disturbance Torque Effects on the Stability and Control Performance of Two-Axis Gimbal SystemsEstimating Disturbance Torque Effects on the Stability and Control Performance of Two-Axis Gimbal SystemsNguyenNgoc HungNguyenNgoc Hung

Ngoc Hung Nguyen, Master in "Control and Automation Engineering" (2014), postgraduate student, lecturer at the Department of Aerospace Control Systems

 236 Hoang Quoc Viet St., Bac Tu Liem, Ha Noi

Ngoc Hung Nguyen, Master in "Control and Automation Engineering" (2014), postgraduate student, lecturer at the Department of Aerospace Control Systems

 236 Hoang Quoc Viet St., Bac Tu Liem, Ha Noi

hungnn@lqdtu.edu.vnDoVan PhanDoVan Phan

Van Phan Do, PhD (Eng.) (2014), lecturer at the Department of Aerospace Control Systems

236 Hoang Quoc Viet St., Bac Tu Liem, Ha Noi

Van Phan Do, PhD (Eng.) (2014), lecturer at the Department of Aerospace Control Systems

236 Hoang Quoc Viet St., Bac Tu Liem, Ha Noi

 

dovanphanhv@gmail.comVuHoa TienVuHoa Tien

Hoa Tien Vu, PhD (Eng.) (2005), Associate Professor (2014), specialist in systems engineering control and automation, visiting lecturer at the Department of Aerospace Control Systems

236 Hoang Quoc Viet St., Bac Tu Liem, Ha Noi

Hoa Tien Vu, PhD (Eng.) (2005), Associate Professor (2014), specialist in systems engineering control and automation, visiting lecturer at the Department of Aerospace Control Systems

236 Hoang Quoc Viet St., Bac Tu Liem, Ha Noi

hoatien57@yahoo.comLe Quy Don Technical UniversityВьетнамLe Quy Don Technical UniversityViet Nam2022290920222546371Copyright © Nguyen N.H., Do V.P., Vu H.T., 20222022Nguyen N.H., Do V.P., Vu H.T.Nguyen N.H., Do V.P., Vu H.T.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://re.eltech.ru/jour/article/view/662Introduction

Introduction. Two-axis gimbal systems are applied for stabilizing and controlling the line of sight (LOS) of an optical or imaging system mounted on a moving vehicle. Gimbal systems are intended to isolate various disturbance torques and control the LOS toward the direction of a target. Two-axis gimbals can be of two main types, namely Yaw-Pitch and Swing-Roll type. In this article, we focus on investigating mathematical models of two-axis gimbals, which describe the impact of cross-disturbance torques on their stability and control performance. Simulations were conducted to compare advantages and disadvantages of the two types of two-axis gimbals.

Aim

Aim. To study mathematical models describing the impact of cross-disturbance torques on the stability and control performance of two-axis gimbals.

Materials and methods

Materials and methods. Mathematical models of two-axis gimbal systems were synthesized by the Lagrange method. The operation of two-axis gimbal systems was simulated in the Matlab-Simulink environment. Results. Mathematical models and structural diagrams of the synthesized Yaw-Pitch and Swing-Roll gimbals were obtained. The conducted simulations of typical cases revealed different cross-disturbance effects.

Conclusion

Conclusion. Motion equations for Swing-Roll and Yaw-Pitch gimbals were derived using similar methodology. The impact of cross-disturbance torques on gimbal systems was evaluated. The obtained results form a basis for selecting an optimal structure of tracking systems meeting the desired characteristics.

Introduction

Introduction. Two-axis gimbal systems are applied for stabilizing and controlling the line of sight (LOS) of an optical or imaging system mounted on a moving vehicle. Gimbal systems are intended to isolate various disturbance torques and control the LOS toward the direction of a target. Two-axis gimbals can be of two main types, namely Yaw-Pitch and Swing-Roll type. In this article, we focus on investigating mathematical models of two-axis gimbals, which describe the impact of cross-disturbance torques on their stability and control performance. Simulations were conducted to compare advantages and disadvantages of the two types of two-axis gimbals.

Aim

Aim. To study mathematical models describing the impact of cross-disturbance torques on the stability and control performance of two-axis gimbals.

Materials and methods

Materials and methods. Mathematical models of two-axis gimbal systems were synthesized by the Lagrange method. The operation of two-axis gimbal systems was simulated in the Matlab-Simulink environment. Results. Mathematical models and structural diagrams of the synthesized Yaw-Pitch and Swing-Roll gimbals were obtained. The conducted simulations of typical cases revealed different cross-disturbance effects.

Conclusion

Conclusion. Motion equations for Swing-Roll and Yaw-Pitch gimbals were derived using similar methodology. The impact of cross-disturbance torques on gimbal systems was evaluated. The obtained results form a basis for selecting an optimal structure of tracking systems meeting the desired characteristics.

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The authors declare that there are no conflicts of interest present.