Design optimization of the Upper Steering Mirror Assembly (USMA) for ITER ECHUL in view of disruptive events
Sign Up to like & getrecommendations! Published in 2021 at "Fusion Engineering and Design"
DOI: 10.1016/j.fusengdes.2021.112343
Abstract: Abstract Four Electron Cyclotron Heating Upper Launchers (ECHUL) will be used at ITER to counteract magneto-hydrodynamic plasma instabilities by targeting them with up to 20 MW of mm-wave power at 170 GHz. The millimeter waves are guided… read more here.
Keywords: mirror; design optimization; iter; power ... See more keywords
Improved ADRC With ILC Control of a CCD-Based Tracking Loop for Fast Steering Mirror System
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2018.2846287
Abstract: In order to improve the tracking accuracy of the fine tracking system of free-space optical communications, a proposed active disturbance rejection control (ADRC) with iterative learning control (ILC) strategy is designed to regulate the fast… read more here.
Keywords: improved adrc; steering mirror; system; control ... See more keywords
High-bandwidth, compact fine-steering mirror design for the CubeSpec space mission
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Astronomical Telescopes, Instruments, and Systems"
DOI: 10.1117/1.jatis.10.3.034005
Abstract: Abstract. The primary goal of the CubeSpec mission is to show the feasibility of high-resolution optical astronomical spectroscopy from a small and cheap space platform. In its showcase mission, this 12U CubeSat space telescope will… read more here.
Keywords: steering mirror; fine steering; space; mission ... See more keywords
Flight qualification of the fast steering mirror for the Nancy Grace Roman Space Telescope’s coronagraph instrument
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Astronomical Telescopes, Instruments, and Systems"
DOI: 10.1117/1.jatis.11.3.031509
Abstract: Abstract. The fast steering mirror (FSM) is an active optical element of the Coronagraph Instrument (CGI). It has been integrated into the Roman Space Telescope. The FSM operates in conjunction with several active optical assemblies,… read more here.
Keywords: space telescope; mirror; steering mirror; fast steering ... See more keywords
Improved prescribed performance control of a fast steering mirror based on switching strategy.
Sign Up to like & getrecommendations! Published in 2025 at "Applied optics"
DOI: 10.1364/ao.563835
Abstract: To meet the high-performance control requirements of a fast steering mirror in a laser communication system, an improved prescribed performance control method that combines a reduced-order nonlinear extended state observer and a fast nonsingular terminal… read more here.
Keywords: steering mirror; control; prescribed performance; fast steering ... See more keywords