@inproceedings{139c800cdd8347d28fb63f4da702c694,
title = "Design and control of a steering mirror for a freespace optical communications CubeSat for gigabit inter-satellite links",
abstract = "Pointing, Acquisition, and Tracking (PAT) are critical aspects of both uplink and downlink Free Space Optical (FSO) communications systems, ensuring precise targeting of the optical signal from the transmitter to the receiver. PAT systems provide steering and tracking capabilities in order to establish and maintain an optical link, compensating for the relative satellite motion, atmospheric turbulence, vibration and jitter. A novel method for achieving closed loop control between the steering mirrors of a dual channel free space optical communications terminal is presented. By modifying an off-the-shelf open loop stick-slip actuator, the control system achieves a pointing resolution of 0.002° with under a 15\% increase in mass, resulting in a light weight solution suitable for small satellites.",
keywords = "acquisition, CubeSat, fast steering mirror, free-space optical communication, low-earth orbit, pointing acquisition tracking, position sensing detector, tracking",
author = "Christopher Graham and David Bramall and Othman Younus and Amna Riaz and Richard Binns and Eamon Scullion and Wicks, \{Robert T.\} and Cyril Bourgenot",
year = "2024",
month = oct,
day = "3",
doi = "10.1117/12.3028863",
language = "English",
volume = "13146",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Babu, \{Sachidananda R.\} and Pagano, \{Thomas S.\} and Puschell, \{Jeffery J.\}",
booktitle = "CubeSats, SmallSats, and Hosted Payloads for Remote Sensing VIII",
address = "United States",
note = "CubeSats, SmallSats, and Hosted Payloads for Remote Sensing VIII 2024 ; Conference date: 18-08-2024 Through 19-08-2024",
}