期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN:2194-9042
电子版ISSN:2194-9050
出版年度:1980
卷号:XXIII Part B7 + B8
页码:600-607
出版社:Copernicus Publications
摘要:The french SPOT s~tellite designed by the Centre National d ' Etudes Spatiales(CNES) will be launched by ARIANE in 1984 . It includes two push- broomcameras called H. R.V. (Visible high resolution) using CCD (Charge CoupledDevices) .The in- flight calibration problems are :- knowledge of the detectors spectral sensitivity- comparison of the detectors sensitivityThe calibration method is to perform :- an uniform illumination of all CCD by a lamp, which characteristics, inparticular the spectral radi ant f l ux;will vary during the flight and causesan in- flight lamp calibration to be require~- a few CCD known illumination , comincy from the sun , considered a spectraland absolute radiant flux standard .The calibration device is set outside the camera and includes- a tungsten lamp- a f i ber optics assembly to collect the sun light- some l enses .