Innovative volume-sharing multi-aperture payload for high resolution small satellites

Jun Ho Lee; Seok Gi Han; Do Hee Kim; Myoungjoo Kang; Sehyun Seong

doi:10.1117/12.2648163

28 October 2022 Innovative volume-sharing multi-aperture payload for high resolution small satellites

Jun Ho Lee, Seok Gi Han, Do Hee Kim, Myoungjoo Kang, Sehyun Seong

Proceedings Volume 12264, Sensors, Systems, and Next-Generation Satellites XXVI; 122640M (2022) https://doi.org/10.1117/12.2648163
Event: SPIE Remote Sensing, 2022, Berlin, Germany

Abstract

The nature of optical diffraction limits the spatial resolution of a space-borne optical sensor to the diffraction limit. Using the Rayleigh criterion, we match the Airy Diameter of the optical sensor to the pitch size of a selected imaging detector, or vice versa. Since there is little choice when selecting space-proven imaging detectors, conventional approaches have few options for payload optimization in terms of compactness or volume. In this paper, we first propose an innovative concept of volume sharing multi-aperture payloads to achieve ground spatial resolutions several times higher than conventional approaches. With this approach, we can achieve 1 m ground sampling distance (GSD) at 500 km altitude with a small satellite of less than 100U volume.

Citation Download Citation

Jun Ho Lee, Seok Gi Han, Do Hee Kim, Myoungjoo Kang, and Sehyun Seong "Innovative volume-sharing multi-aperture payload for high resolution small satellites", Proc. SPIE 12264, Sensors, Systems, and Next-Generation Satellites XXVI, 122640M (28 October 2022); https://doi.org/10.1117/12.2648163

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