Synthesis of orientation mechanisms for the space observatory “Millimetron”. 4. The concept of intelligence system of active vibration protection and very precise pointing of the space observatory “Millimetron”

Artemenko, Yu. N.; Sayapin, S. N.

doi:10.7463/0613.0574243

Cited by 2 publications

References 3 publications

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Synthesis of Control of Hinged Bodies Relative Motion Ensuring Move of Orientable Body to Necessary Absolute Position

Artemenko

Karpenko

Belonozhko

2017

Smart Electromechanical Systems: The Central Nervous System

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Purpose: Taking into account evolution trends of space-system engineering, on solution of tasks concerned with control systems elaboration, making of Robot Central Nervous System (RCNS) for perspective space-purpose robotic systems, we can talk about urgency of problems of brake-release mode analysis, which specificity is determined by functionality of systems under consideration and orbital external environment. The paper considers characteristic features of controlled motion of space system "movable platform-manipulator-payload", which moves in inertial space under the action of the hinged control in conditions free of external forces. Results: Using mathematical model obtained in Artemenko et al. (Smart electromechanical systems. Springer International Publishing, Switzerland, pp. 177-190, 2016, [1]) the paper examines an example of task solution of control synthesis of relative movement of orientable and lifting body, providing setting of orientable body in desired absolute position. Practical importance: There are perspective space systems, for which the considered type of controlled motion is possible as normal mode of operation being of applied interest.

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Synthesis of Control of Hinged Bodies Relative Motion Ensuring Move of Orientable Body to Necessary Absolute Position

Artemenko

Karpenko

Belonozhko

2017

Smart Electromechanical Systems: The Central Nervous System

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Precision space telescope attitude determination and control system design principles

Fateev,

Vilkov,

Chebotarev

et al. 2023

S&T

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In order to preclude the impact of atmospheric factors on the quality of received data, state of the art astronomy research projects require spacecraft mounted telescopes. However, such designs entail the issue of sustaining the accuracy of telescope boresight attitude relative to the object of observation for the required period of time. This paper is a summary of design principles for an attitude determination and control system of a space telescope mounted rigidly onboard a spacecraft. The paper formulates requirements for attitude accuracy, and proposes a viable equipment configuration as well as a three- stage attitude control algorithm. The first stage of the algorithm ensures primary boresight pointing towards the target object prior to the object being captured in the telescope’s FoV based on star tracker and angular rate sensor data. The second stage of the algorithm ensures boresight positioning relative to the target object direction up to an error value allowing for the required image quality, based on telescope readings. The third stage of the algorithm ensures telescope boresight holding relative to the target object direction with a required accuracy for the duration of exposure. Interferences from operating satellite equipment are reviewed, and the principles of reducing their impact on sighting accuracy are formulated. Low inclination, low eccentricity geostationary orbit is recommended as the best operating environment for the space telescope’s scientific instrumentation, as well as for providing a continuous data interface between spacecraft and ground segment.

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Synthesis of orientation mechanisms for the space observatory “Millimetron”. 4. The concept of intelligence system of active vibration protection and very precise pointing of the space observatory “Millimetron”

Cited by 2 publications

References 3 publications

Synthesis of Control of Hinged Bodies Relative Motion Ensuring Move of Orientable Body to Necessary Absolute Position

Synthesis of Control of Hinged Bodies Relative Motion Ensuring Move of Orientable Body to Necessary Absolute Position

Precision space telescope attitude determination and control system design principles

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