朱正平,曹澍宇,李国主.流星频谱提取方法的研究与实现[J].中南民族大学学报自然科学版,2022,41(4):440-448
流星频谱提取方法的研究与实现
Research and implementation of meteor spectrum extraction method
  
DOI:10.12130/znmdzk.20220409
中文关键词: 流星频谱  流星体  空间环境
英文关键词: meteor spectrum  meteoroid  space environment
基金项目:国家自然科学基金资助项目(41474135)
作者单位
朱正平 中南民族大学 电子信息工程学院武汉 430074 
曹澍宇 中南民族大学 电子信息工程学院武汉 430074 
李国主 中国科学院地质与地球物理研究所 中国科学院地球与行星物理重点实验室北京 100029 
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中文摘要:
      通过流星频谱获取流星体特性,分析流星体对地球空间环境的影响是目前空间环境探测领域的热点课题.为了从流星视频观测数据中提取出流星频谱,研究了流星频谱的提取方法,通过去背景场、图像变换、频谱配准、波长定标等步骤成功提取出流星频谱.为实现海量流星视频数据的自动化处理,在该方法基础上,研制出了一款集成度高的频谱处理程序.使用该方法处理了北京空间环境国家野外观测站记录的频谱视频数据,结果表明:所提取的观测频谱与标准频谱相比具有较好的一致性,验证了该方法的有效性.利用新开发的程序处理了流星视频观测数据,准确地提取出流星频谱,为进一步分析流星体的组成以及研究流星体对地球空间环境的影响和太阳系的起源与变化提供了新的线索.
英文摘要:
      It is currently a hot topic to analyze the impact of meteoroids on the earth's space environment by characteristics of meteor inferred from meteor spectrum in the field of space environment exploration. In order to extract meteor spectrum from meteor video observation data, the extraction method of meteor spectrum is studied, which can extract meteor spectrum by subtraction of background, image transformation, spectrum registration, wavelength calibration. A well-integrated program is developed based on the method to automatically process large amounts of meteor video data. The meteor video data recorded by Beijing National Observatory of Space Environment is process by using this method, the results indicated that the extracted observed spectra are in good agreement with the standard spectra of stars, which verifies the validity of the method. The newly developed program has been used to process the meteor video observation data and extract the meteor spectrum accurately, which provides new clues for further analysis of the composition of meteoroids and the study of the impact of meteoroids on the Earth's space environment and the origin and changes of the solar system.
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