VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Flight performance of a black sun effect based micro sun sensor on board the satellite TRISAT-R in medium earth orbit [Elektronski vir]
    Kosanič, Nejc ; Gonzales, Lorenzo ; Kramberger, Iztok
    This study examines the TRISAT-R nanosatellite, launched in 2022, as a case study to evaluate a non-traditional approach to optical sensing and satellite stabilization. In focus is the Black Sun ... Effect (BSE), observed in CMOS image sensors, which can be leveraged for Sun vector detection and attitude control. We used a 520 nm laser diode and high-precision imaging, to characterize the per-pixel power threshold required to induce BSE in a specific sensor experimentally, finding that BSE occurs when a pixel receives approximately 3 µW of power. Differences in quantum efficiency were analyzed between RGB and black-andwhite sensors, along with optical defects. Flight data from TRISAT-R validated our mathematical models, with an image of the Earth confirming that our calculated sensor placement relative to the focal plane was correct, that is, in alignment with Gaussian beam propagation models. Comparing our calibrated modeled simulations and recorded Sun images has demonstrated strong agreement between the calibrated and measured BSE activation thresholds, providing further reinforcement of our methodology. These findings contribute to the development of highly miniaturized and cost-effective imaging solutions for (nano)satellites as sensor probes, with future research focusing on additional environmental factors and the accuracy of Sun vector estimation.
    Vir: IEEE aerospace and electronic systems magazine. - ISSN 1557-959X (Date of Publication: 20 October 2025, 8 str.)
    Vrsta gradiva - e-članek ; neleposlovje za odrasle
    Leto - 2025
    Jezik - angleški
    COBISS.SI-ID - 255067139
    DOI

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