發(fā)布時間：2018-10-30 16:20

【摘要】：天繪一號衛(wèi)星是一顆傳輸型立體測繪衛(wèi)星,其職能是實現(xiàn)全球無控精確定位。為此,后期處理過程中需要準確獲知每行影像攝影時刻的衛(wèi)星姿態(tài)和軌道數(shù)據(jù),衛(wèi)星產品中的行時文件起到了影像與姿軌數(shù)據(jù)對應的橋梁作用。本文在分析影像數(shù)據(jù)、行時文件、輔助數(shù)據(jù)3者間關系的基礎上,通過試驗方式驗證了1A級影像與行時不對應時對產品定位精度的影響,最后提出了一種有效檢查影像與行時文件對應關系的方法,并對該方法進行了試驗驗證。
[Abstract]:Tianyi-1 satellite is a transmission stereo mapping satellite, its function is to achieve global accurate positioning without control. For this reason, the satellite attitude and orbit data of each line of images need to be accurately obtained in the post-processing process, and the line-time files in satellite products act as a bridge between the images and the attitude and orbit data. On the basis of analyzing the relationship among image data, line time file and auxiliary data, this paper verifies the effect of 1A image on product positioning accuracy when the image is not corresponding to row time. Finally, an effective method to check the relationship between image and line time file is proposed, and the method is verified by experiments.
【作者單位】： 中國天繪衛(wèi)星中心;
【基金】：國家自然科學基金(61303188)
【分類號】：P236
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本文編號：2300513