Onboard Stabilization of the Information and Measurement System in the Double Gimbal Suspension of Aircraft

The synthesis of control laws for an inertial stabilized platform (ISP) designed for stabilizing the image of an observed target in observer’s field of view and tracking the position of this target from an airborne vehicle is considered. Such a system consists of a stabilization loop for controlling...

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Bibliographic Details
Published in:International applied mechanics 2022-03, Vol.58 (2), p.208-218
Main Authors: Tunik, A. A., Sushchenko, O. A., Azarskov, V. M.
Format: Article
Language:English
Subjects:
Aircraft control
Algorithms
Applications of Mathematics
Control systems
Control theory
Engineering
Feedback control
Feedforward control
Flying-machines
Gimbals
Laws, regulations and rules
Measuring instruments
Robust control
Stabilization
Stabilized platforms
Synthesis
Tracking control
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Summary:The synthesis of control laws for an inertial stabilized platform (ISP) designed for stabilizing the image of an observed target in observer’s field of view and tracking the position of this target from an airborne vehicle is considered. Such a system consists of a stabilization loop for controlling the outer stabilizing frame of the double gimbal suspension, and a target tracking loop for controlling the inner frame of this suspension where the observer is located. One of the new proposals is to use a combined control in the stabilization loop, which consists of disturbance-based feedforward and error-based feedback controls and provides for the direct measurement of external disturbance with the help of high-speed PINS gyros. The synthesis of a stabilizing control law is based on the invariance theory as background for the feedforward control design and the robust control theory for the feedback control one. The robust control theory is also used for designing the feedback control for the tracking loop. The results of the design procedures are verified by simulating ISP operation in the stabilizing and tracking modes. These results prove the efficiency of the proposed design algorithms and obtained control laws.
ISSN:1063-7095
1573-8582
DOI:10.1007/s10778-022-01147-0