Version 1
: Received: 28 August 2024 / Approved: 28 August 2024 / Online: 29 August 2024 (07:14:22 CEST)
How to cite:
Yan, W.; Tan, X.; Wu, J.; Yuan, M.; Dang, H.; Chang, W. Design and On-Orbit Performance of Ku-Band Phase-Array SAR Payload System. Preprints2024, 2024082092. https://doi.org/10.20944/preprints202408.2092.v1
Yan, W.; Tan, X.; Wu, J.; Yuan, M.; Dang, H.; Chang, W. Design and On-Orbit Performance of Ku-Band Phase-Array SAR Payload System. Preprints 2024, 2024082092. https://doi.org/10.20944/preprints202408.2092.v1
Yan, W.; Tan, X.; Wu, J.; Yuan, M.; Dang, H.; Chang, W. Design and On-Orbit Performance of Ku-Band Phase-Array SAR Payload System. Preprints2024, 2024082092. https://doi.org/10.20944/preprints202408.2092.v1
APA Style
Yan, W., Tan, X., Wu, J., Yuan, M., Dang, H., & Chang, W. (2024). Design and On-Orbit Performance of Ku-Band Phase-Array SAR Payload System. Preprints. https://doi.org/10.20944/preprints202408.2092.v1
Chicago/Turabian Style
Yan, W., Hongxing Dang and Wujun Chang. 2024 "Design and On-Orbit Performance of Ku-Band Phase-Array SAR Payload System" Preprints. https://doi.org/10.20944/preprints202408.2092.v1
Abstract
The current emphasis in the advancement of space-based synthetic aperture radar (SAR) is on lightweight payloads under 100kg with resolutions surpassing 1m. This focus is directed towards meeting the launch criteria for multiple satellites on a single rocket and cutting costs. This article discusses the creation and progress of a Ku-band SAR payload for the Taijing-4(03) Satellite, launched on January 23, 2024 accompanied by four other satellites. The SAR payload design was customized to meet the demands of a micro-nano satellite platform, resulting in a lightweight, flat design weighing less than 80kg, seamlessly integrated with the plate-shaped satellite platform. The article also introduces a beam optimization strategy for the phased array SAR antenna, significantly boosting the SAR system’s performance. The SAR payload provides various operating modes like slide-spot, strip, scan 1, scan 2, and others, with a maximum achievable resolution exceeding 1m. Extensive in-orbit testing of the payload produced numerous high-quality SAR images with potential uses in emergency disaster mitigation, safeguarding ecosystems, monitoring forests, managing crops, tracking sea ice, and more.
Keywords
Ku band; SAR system; payload; Taijing-4(03); on-orbit; application; micro-nano; satellite
Subject
Engineering, Aerospace Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
