以O₃在8.823 μm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15~45 km范围内,白天及晚上的视向风测量误差均在1~2 m/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.