The key point is study the interference pattern of sub-mirrors and the wavefront and draw conclusion in the field of physical optics to get the trait and date of the misadjustment. 研究重點是通過對子鏡的干涉圖和波前判研以及對系統的物理光學分析獲得失調特征和數據，從而指導裝調。
We propose a novel method to obtain speckle fringe patterns of ESPI from undeformed and deformed speckle patterns. 本文基于變形前和變形后的散斑圖，提出一種獲得電子散斑干涉條紋圖的新穎方法。
The results show that this technique is capable of significantly improving the quality of fringe patterns.It works well as a pre-processing for the fringe patterns by ESPI. 結果表明該技術能夠顯著改善條紋圖的質量，是一種行之有效的電子散斑干涉條紋圖的預處理方法。
