O3辐射源Michelson测风成像干涉仪临边观测正演仿真  

Forward Simulation of Limb-Viewing Michelson Wind Imaging Interferometer Based on O3 Radiation Source

作　　者：何微微[1] 武魁军[2] 冯玉涛[3] 王后茂 傅頔 刘秋新[1] 鄢小虎[1] He Weiwei;Wu Kuijun;Feng Yutao;Wang Houmao;Fu Di;Liu Qiuxin;Yan Xiaohu(City College, Wuhan University of Science and Technology, Wuhan, Hubei 430083, China;Wiihan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan , Hubei 430071, China;Xi' an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences,Xi 'an, Shaanxi 710119, China;National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China)

机构地区：[1]武汉科技大学城市学院,湖北武汉430083 [2]中国科学院武汉物理与数学研究所,湖北武汉430071 [3]中国科学院西安光学精密机械研究所,陕西西安710119 [4]中国科学院国家空间科学中心,北京100190

出　　处：《光学学报》2019年第5期189-197,共9页Acta Optica Sinica

基　　金：国家自然科学基金(61705253);中国科学院光谱成像技术重点实验室开放基金(LSIT201701D);院级重点科研项目(2017CYZDKY001)

摘　　要：以O3在8.823μm波段的辐射为探测源,通过干涉仪获取其精细光谱的多普勒频移反演,是平流层风场探测的重要途径。鉴于此,通过对O3临边辐射光谱特性进行分析,确定了最佳的目标谱线;利用三级红外Fabry-Perot标准具联合滤光,实现了目标谱线的提取;通过建立Michelson干涉仪数值模型,得到了临边观测情况下白天及夜间工作时的四步进干涉图像;通过误差分析,论证了15~45km范围内,白天及晚上的视向风测量误差均在1~2m/s范围内。因此,以O3辐射为探测源的Michelson干涉仪可以实现平流层风场的全球全天时探测。An important method to observe stratospheric winds is to invert the Doppler frequency shift of fine spectra with a Michelson interferometer using an O3 radiation probe source in the 8.823-μm waveband. Therefore, the spectral characteristics of O3 limb radiation were analyzed to determine the best target spectral line. The target spectral line was extracted via the combined filtering of a three-level infrared Fabry-Perot etalon. The four-step interferometric images were obtained during daytime and nighttime limb-viewing with the established numerical model of the Michelson interferometer. Via an error analysis, the result was validated to ensure that, in the range of 15-45 km, the measurement errors of the wind in the line of sight are within a range of 1-2 m/s for both daytime and nighttime observations. Consequently, the stratospheric winds can be detected globally and round the clock using a Michelson interferometer with O3 radiation as the probe source.

关 键 词：测量 光谱成像 大气风场 卫星遥感 Michelson干涉仪 

分 类 号：P407.6[天文地球—大气科学及气象学]