Discrete Time Variable Gain Controllers for a Small Telescope Using an Image Sensor as an Error Detector

Joonhwa Lee

doi:10.5302/J.ICROS.2023.22.0229

Discrete Time Variable Gain Controllers for a Small Telescope Using an Image Sensor as an Error Detector

Joonhwa Lee

School of Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A variable gain controller is proposed for a small telescope using an image sensor as an error detector. It is shown that the performance of the proposed controller is better than a constant gain controller and the first order controllers when the magnitude of the rectangular disturbance are varying with time. It is also shown that the nonlinear closed loop system with the proposed variable gain controller is stable.

Original language	English
Pages (from-to)	120-125
Number of pages	6
Journal	Journal of Institute of Control, Robotics and Systems
Volume	29
Issue number	2
DOIs	https://doi.org/10.5302/J.ICROS.2023.22.0229
State	Published - 2023

Keywords

astronomical telescope
discrete system
image sensor
tracking controller
variable gain control

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10.5302/J.ICROS.2023.22.0229

Cite this

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abstract = "A variable gain controller is proposed for a small telescope using an image sensor as an error detector. It is shown that the performance of the proposed controller is better than a constant gain controller and the first order controllers when the magnitude of the rectangular disturbance are varying with time. It is also shown that the nonlinear closed loop system with the proposed variable gain controller is stable.",

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Discrete Time Variable Gain Controllers for a Small Telescope Using an Image Sensor as an Error Detector

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