红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2014年
10期
3423-3427
,共5页
三线阵CCD相机%相机交会角%几何模型%天绘卫星
三線陣CCD相機%相機交會角%幾何模型%天繪衛星
삼선진CCD상궤%상궤교회각%궤하모형%천회위성
three-line-array CCD camera%camera intersection angle%geometric model%TH satellite
提出了一种新的在轨标定相机交会角的方法，该方法不同于目前广泛采用的摄影测量中的后方交会。以三线阵CCD测绘相机为例，通过对其工作原理的分析，建立了求解相机交会角的几何模型，并利用天绘卫星三线阵影像数据进行了相关试验。结果表明，该方法可行，计算结果精度较高，与摄影测量方法所得结果非常接近。同时，计算分析了定轨精度和地面控制点精度对相机交会角精度的影响。相对于摄影测量的方法而言，该方法理论简单，易于理解，可进一步应用于高分辨相机和多光谱相机离轴角的在轨标定，具有重要意义。
提齣瞭一種新的在軌標定相機交會角的方法，該方法不同于目前廣汎採用的攝影測量中的後方交會。以三線陣CCD測繪相機為例，通過對其工作原理的分析，建立瞭求解相機交會角的幾何模型，併利用天繪衛星三線陣影像數據進行瞭相關試驗。結果錶明，該方法可行，計算結果精度較高，與攝影測量方法所得結果非常接近。同時，計算分析瞭定軌精度和地麵控製點精度對相機交會角精度的影響。相對于攝影測量的方法而言，該方法理論簡單，易于理解，可進一步應用于高分辨相機和多光譜相機離軸角的在軌標定，具有重要意義。
제출료일충신적재궤표정상궤교회각적방법，해방법불동우목전엄범채용적섭영측량중적후방교회。이삼선진CCD측회상궤위례，통과대기공작원리적분석，건립료구해상궤교회각적궤하모형，병이용천회위성삼선진영상수거진행료상관시험。결과표명，해방법가행，계산결과정도교고，여섭영측량방법소득결과비상접근。동시，계산분석료정궤정도화지면공제점정도대상궤교회각정도적영향。상대우섭영측량적방법이언，해방법이론간단，역우리해，가진일보응용우고분변상궤화다광보상궤리축각적재궤표정，구유중요의의。
A new method for the in-flight calibration of camera′s intersection angle was put forward. It is different from the photogrammetric resection which is widely used at present. Take the three-line-array CCD surveying and mapping camera as example, through the analysis of its working principle, the geometric model to calculate the camera′ s intersection angle was established, and the correlative experiment using the image data of TH satellite was carried out. Result shows that this method is feasible, and the outcome is very close to the conclusion got by the photogrammetric method. Meanwhile, the affection of the orbit determination precision and the ground control points′ precision on the camera′s intersection angle was calculated and analyzed. Compared with the photogrammetric method, it is easier to understand, and can further be used to calibrate the off-axis angle of the multispectral camera and high definition camera in-flight. It is of great significance.
