Research On Integration Method Of MUSER Observation Data

With the rapid development of astronomical observation technology and observation method,increasing numbers of ground-based and space-based telescopes are built and gradually put into application.Especially,the observation data presents an explosive growth due to the application of related astronomical devices.How to use the data processing method to the collect data from the massive amounts of observation data receives significant attention among astronomers.With the research background of tremendous data processing system used by the Manganate Spectral Radioheliograph(MUSER),this article focuses on researching the integral method applied on processing the MUSER data,especially in the area of the analysis of MUSER imaging principle,UV coverage technology,the format of output data and the demand of data processing.1)According to aperture synthesis principle,the MUSER image-forming process,data acquisition and pre-processing are deeply researched.In addition,this thesis analyzes and research the whole flow of MUSER data processing and the related system.2)this part focus on not only an in-depth study of MUSER data integration method,but also the reason and application of using this method on MUSER image-forming.Three methods of integration based on UV average,UV coverage,and the composition of UV average and UV coverage respectively,are proposed according to the aperture synthesis principle and its related experiments.Consequently,the result of imaging-forming meet the requirements by using these integration method.3)On the basic of the realization of integration methods,the performance of these three integration methods are tested.With the purpose of increasing the speed of the imaging-forming process without the sacrifice of the quality of the image,the demand for speed could be satisfied by adopting different integration mode.The performance analyses of these integration method could contribute significantly to the MUSER data analysis.On the whole,this thesis successfully establishes the foundation of these three integration methods for MUSER data analysis based on researching and designing.Through the researches on the performance of these three integration methods,the solution to improve the quality of image for long time integration and short time integration are obtained respectively.In the MUSER system,three different integration method all make obvious application effect.