激光与光电子学进展, 2021, 58 (3): 0301002, 网络出版: 2021-03-12
激光掩星探测大气温压反演方法的仿真分析 
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Simulation Analysis of Inversion Method of Atmospheric Temperature and Pressure for Laser Occultation
图 & 表
图 1. 764 nm波长附近不同条件下的氧气吸收截面。（a）在10 km高空用于压强掩星探测的氧气吸收线和参考线位置；（b）压强为400 hPa时，氧气吸收截面随温度变化；（c）温度为250 K时，氧气吸收截面随压强变化
Fig. 1. Oxygen absorption cross-section in different conditions near 764 nm wavelength. (a) Position of oxygen absorption line and reference line for pressure inversion at 10 km; (b) oxygen absorption cross-section varies with temperature at 400 hPa; (c) oxygen absorption cross-section varies with pressure at 250 K
图 3. 温度反演吸收线和参考线位置（10 km）
Fig. 3. Position of absorption line and reference line for temperature retrieval（10 km）
图 4. 764.7 nm波长对应的仿真结果。（a）模拟得到不同切点高度的差分透过率；（b）反演得到不同切点高度处差分吸收系数的相对误差
Fig. 4. Results of simulation corresponding to 764.7 nm wavelength. (a) Differential transmittance corresponding to different tangent altitudes obtained by simulation; (b) relative error of differential absorption coefficient by inversion at different tangent altitudes
图 5. 不同条件下压强反演相对误差。（a）无温度误差和差分吸收系数反演误差；（b）仅温度误差；（c）仅差分吸收系数反演误差；（d）同时有温度误差和差分吸收系数反演误差
Fig. 5. Relative error of inversion pressure at different conditions. (a) Without temperature error and inversion error of differential absorption coefficient; (b) with only temperature error; (c) with only inversion of differential absorption coefficient; (d) with both temperature error and inversion error of differential absorption coefficient
图 6. 769.79759 nm波长对应的仿真结果。（a）模拟得到不同切点高度的差分透过率；（b）反演得到差分吸收系数相对误差
Fig. 6. Results of simulation corresponding to 769.79759 nm wavelength. (a) Differential transmittance corresponding to different tangent altitudes obtained by simulation; (b) relative error of differential absorption coefficient by inversion at different tangent altitudes
图 7. 不同条件下温度反演绝对误差。（a）无压强误差和差分吸收系数反演误差；（b）仅压强反演误差；（c）仅差分吸收系数反演误差；（d）同时有压强反演误差和差分吸收系数反演误差
Fig. 7. Absolute error of inversion temperature at different conditions. (a) Without inversion error of pressure and differential absorption coefficient; (b) with only inversion error of pressure; (c) with only inversion error of differential absorption coefficient; (d) with both inversion error of pressure and differential absorption coefficient
李虎, 王建宇, 洪光烈, 王一楠. 激光掩星探测大气温压反演方法的仿真分析[J]. 激光与光电子学进展, 2021, 58(3): 0301002. Li Hu, Wang Jianyu, Hong Guanglie, Wang Yinan. Simulation Analysis of Inversion Method of Atmospheric Temperature and Pressure for Laser Occultation[J]. Laser & Optoelectronics Progress, 2021, 58(3): 0301002.
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