Robust Self-Calibration of Subreflector Actuators Under Noise and Limited Workspace Conditions

Robust Self-Calibration of Subreflector Actuators Under Noise and Limited Workspace Conditions

Accurate kinematic calibration of subreflector actuators is essential for pointing precision of large radio telescopes, particularly at high frequencies. Conventional least-squares methods are vulnerable to noise and outliers, and their accuracy may degrade when limited pose diversity leads to poor...

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Bibliographic Details
Main Authors: Guljaina Kazezkhan, Na Wang, Qian Xu, Shangmin Lin, Hui Wang, Fei Xue, Feilong He, Xiaoman Cao
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Machines
Subjects:
radio telescope
subreflector actuator
kinematic calibration
Levenberg–Marquardt algorithm
Huber loss
<i>L</i><sub>2</sub> regularization
Online Access:https://www.mdpi.com/2075-1702/13/6/484
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