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A new method for analysing photon-scattering in high-speed turbulence

  • He Yu*
  • , Bo Yang
  • , Zichen Fan
  • , Chaofan Liu
  • , Xiang Wei
  • , Jun Miao
  • *Corresponding author for this work
  • Beihang University
  • Beijing Institute of Control and Electronic Technology
  • Qian Xuesen Laboratory of Space Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Optical scattering caused by the high-speed turbulence will reduce the accuracy of optical sensors on aircraft. The existing research mainly focuses on the scattering field on the macro scale. A new method to analyse the photon-scattering characteristics in high-speed turbulence from the micro point of view is proposed in this paper, which can explain the micro disturbance of airflow molecules to photons. In order to construct the relationship between micro disturbance and macro distortion, molecular clusters are proposed to describe the multi-molecular scattering field, and the scattering characteristics of molecular clusters with wavelength, density and vortex shape are obtained by statistical method. The simulation results show that the coherent superposition of scattered waves is the dominant factor of the micro scattering characteristics of molecular clusters. The method proposed in this paper provides a new idea for the study of aero-optics under complex flow conditions.

Original languageEnglish
Title of host publicationThird International Conference on Computer Science and Communication Technology, ICCSCT 2022
EditorsYingfa Lu, Changbo Cheng
PublisherSPIE
ISBN (Electronic)9781510661240
DOIs
StatePublished - 2022
Event3rd International Conference on Computer Science and Communication Technology, ICCSCT 2022 - Beijing, China
Duration: 30 Jul 202231 Jul 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12506
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference3rd International Conference on Computer Science and Communication Technology, ICCSCT 2022
Country/TerritoryChina
CityBeijing
Period30/07/2231/07/22

Keywords

  • aero-optics
  • high-speed turbulence
  • micro disturbance
  • molecular clusters
  • Optical sensors
  • photon-scattering
  • photon-scattering

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