Real-Time Data Processing Of High Level Atmospheric Wind Field Detected By GBAⅡ

In order to provide scientific basis and guarantee for the development and utilization of adjacent space(20-100km)over the earth,exploring the adjacent space environment has become a hot research topic in atmospheric science.In 2012,the research team developed a Ground-based Airglow Imaging Interferometer(GBAⅡ)to detect atmospheric wind speed,temperature,and body emissivity of 90-100 km.The "four-intensity wind measurement method" of the current mainstream wide-angle Michelson interferometer and the "rotation line temperature measurement method" of the Fabry-Polo filter are applied to GBAⅡ.In the past,GBAⅡ observation of atmospheric wind speed extraction processing speed because there is no independent program for data processing,usually need to use multiple software,resulting in inefficiency,this paper will study the processing speed of GBAⅡ detection image from both theoretical and experimental aspects.Complete the following five aspects of work:1.Explain the "four-intensity method" and the principle of the rotational line theory of GBAⅡ to detect the upper atmospheric wind field,and lay the foundation for the subsequent acquisition of atmospheric temperature and wind speed from the nighttime glow image taken by GBAⅡ.2.According to the above method,the atmospheric wind speed and temperature value of90-100 km above the earth are extracted,and compared with the information detected by the transit SABER satellite,not only verifying the accuracy of GBAⅡ detection of the upper atmosphere temperature and wind speed,but also the accuracy of GBAⅡ detection temperature.Increased by 1K,the wind speed detection accuracy increased by 5m/s.3.For the nighttime glow image taken by GBAⅡ detection,several pre-processing methods are studied.Combined with C++ language,Open CV library and Eigen library for programming,it can quickly extract the atmospheric temperature and wind speed in the airborne image taken by GBAⅡ.The programmed procedure verifies the program running speed of GBAⅡ to detect high-level atmospheric wind speed and temperature.The time for obtaining the single atmospheric temperature value is 31 ms,and the running time for obtaining wind speed is 32 ms.4.Through the use of QT interface design software,GBAⅡ was used to visualize the operation procedure of detecting the atmospheric wind speed and temperature of the upper layer,and realized the visual operation interface for reading the image obtained by GBAⅡ detection and calculating the wind speed and temperature.