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微 观 能 量 分 析 气 动 光 学 效 应 时 变 误 差 的 方 法

Translated title of the contribution: Micro-energy analysis method for time-varying error of aero-optical effects
  • Beihang University
  • Beijing Institute of Control and Electronic Technology

Research output: Contribution to journalArticlepeer-review

Abstract

Imaging distortion of optical sensors caused by the aero-optical effects seriously interferes with the navigation accuracy during atmospheric flight of hypersonic vehicles with autonomous celestial navigation. To address this problem,we propose a method to explore the time-varying error of the aero-optical effect at the level of micro-energy change mechanism. This method analyzes the interaction mechanism between photons and turbulent molecules based on the photon transport theory,establishes the photon transport model in the high-speed flow field,and calculates the energy distribution of photons in the turbulent transport process. By establishing the aero-optical effect evaluation function in the micro-photon system,we obtain the time-varying error description of the aero-optical effect,unify the relationship between the micro-energy analysis and the macro-geometric optics,and carry out comparative verification through numerical simulation analysis and wind tunnel test results,thereby providing a new perspective for the research on the aero-optical effect of hypersonic vehicles.

Translated title of the contributionMicro-energy analysis method for time-varying error of aero-optical effects
Original languageChinese (Traditional)
Article number128703
JournalHangkong Xuebao/Acta Aeronautica et Astronautica Sinica
Volume45
Issue number4
DOIs
StatePublished - 25 Feb 2024

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