Research On The Data Retrieval And Calibration Of The Upper Atmosphere Wind And Temperature Measuring Fabry-Perot Interferometer

Recently,the upper atmosphere wind field has attracted increasingly attention of the researchers of meteorology and atmosphere dynamics. The measuring of upper atmosphere can provide key data for human to understand the transferring of energy and momentum between atmosphere layers, assure safty of the spacecraft and explain unusual meteorologic phenomenons. Fabry-Perot Interferometer(F-PInterferometer), a kind of passive interferometric measuring equipment, has been widely used in the atmospheric wind field measurement. China lags on the research of this kind of equipment. This paper, did research on the data retrival technique of the wind measuring F-PInterferometer and made experiment to validate it; investigated the theory and method of the of the F-PInterferometer ground calibration, proposed a modified method for the data processing of the ground calibration; worked on the inflight calibration of the F-PInterferometer, proposed two inflight calibration plan and gave the data processing method, layed foundation of the research and manufacture of the upper atmosphere wind measuring F-PInterferometer of China.The primary content of this paper covers as follows:1. Fistly, the background and significance of upper atmosphere wind field measurement is introduced. Different kinds of wind filed measuring equipment are summarized and compared, also the development of wind filed measuring F-PInterferometer is summarized. Then, the instrument theory and wind speed and temperature retrival of the wind filed measuring F-PInterferometer is analysed in detail. 2. For the data retrieval of the wind field measuring F-PInterferometer, based on the system transferring function, this paper investigated the theories and details of three classical data retrieval algorithms; A new wind speed retrieval algorithm based on Gaussian Fitting is proposed. The first Doppler Effect simulation system is builded and the data is processed with the new Gaussian fitting algorithm combined with the airy function description algorithm. The accuracy of the retrievaled wind speed is 5.7m/s and that of the retrievaled temperature is better than 3K. 3. Gound calibration of wind field measuring F-PInterferometer is analysed. For the calibration of the Fourier complete description method, a modified data processing algorithm is proposed for the Fourier coefficient calculation. For the Airy function coefficient calibration, laser illumination calibration is adopted, and the data is processed with nonlinear regression fit step by step to get the parameters of the instrument function. The method is also validated with experiment data. 4. The in-flight calibration task and theory of the wind measuring F-PInterferometer are analysed, with the key technique and difficulties summarized. Two in-flight calibration scheme are proposed, and the calibration accuracy is analysed and modeled.