Evaluating HOWFSC algorithm implementations on embedded space processors

Brandon Eickert; Nicholas Belsten; Kian Milani; Leonid Pogorelyuk; Shanti Rao; Ewan S. Douglas; Kerri Cahoy

doi:10.1117/12.3019146

23 August 2024 Evaluating HOWFSC algorithm implementations on embedded space processors

Brandon Eickert, Nicholas Belsten, Kian Milani, Leonid Pogorelyuk, Shanti Rao, Ewan S. Douglas, Kerri Cahoy

Proceedings Volume 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave; 130926G (2024) https://doi.org/10.1117/12.3019146
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

Implementing high-order wavefront sensing and control (HOWFSC) algorithms on future space telescopes will require significant computing power. To enable the mission of Habitable Worlds Observatory to directly image exoplanets, we need to improve our understanding of the available performance of radiation-hardened processors. In this work, we describe the testing setup we use to evaluate HOWFSC algorithms, including Electric Field Conjugation and optical modeling on embedded processors. This testing setup enables accurate performance characterization of spaceflight-relevant CPUs and FPGAs in support of HOWFSC algorithms. We interface the embedded processors with a software model of a telescope and coronagraph to perform processor-in-the-loop testing. With this setup, we can test a range of telescope and HOWFSC algorithm configurations that are relevant to the design of future space missions, illuminating the feasibility of in-space HOWFSC algorithm execution.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Brandon Eickert, Nicholas Belsten, Kian Milani, Leonid Pogorelyuk, Shanti Rao, Ewan S. Douglas, and Kerri Cahoy "Evaluating HOWFSC algorithm implementations on embedded space processors", Proc. SPIE 13092, Space Telescopes and Instrumentation 2024: Optical, Infrared, and Millimeter Wave, 130926G (23 August 2024); https://doi.org/10.1117/12.3019146

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