测绘与空间地理信息
測繪與空間地理信息
측회여공간지리신식
GEOMATICS & SPATIAL INFORMATION TECHNOLOGY
2015年
7期
24-27
,共4页
王敏%周树道%何明元%陈晓颖
王敏%週樹道%何明元%陳曉穎
왕민%주수도%하명원%진효영
遥感器%辐射定标%场地定标%反射率
遙感器%輻射定標%場地定標%反射率
요감기%복사정표%장지정표%반사솔
payload%radiometric calibration%radiance%radiometric calibration site%reflectivity
地面辐射场地定标对于提高辐射定标精度具有重要意义,尤其针对没有星上定标设备的卫星遥感器,而决定场地定标精度的重要因素之一即为场地的光学、地表、气象条件等特性。介绍了定标场地选择标准及评价因素、国内外主要定标场地特性及其比较,并分析总结了这些场地的利弊,探讨了今后外场辐射定标场地建设、辐射定标精度的提高及做法。
地麵輻射場地定標對于提高輻射定標精度具有重要意義,尤其針對沒有星上定標設備的衛星遙感器,而決定場地定標精度的重要因素之一即為場地的光學、地錶、氣象條件等特性。介紹瞭定標場地選擇標準及評價因素、國內外主要定標場地特性及其比較,併分析總結瞭這些場地的利弊,探討瞭今後外場輻射定標場地建設、輻射定標精度的提高及做法。
지면복사장지정표대우제고복사정표정도구유중요의의,우기침대몰유성상정표설비적위성요감기,이결정장지정표정도적중요인소지일즉위장지적광학、지표、기상조건등특성。개소료정표장지선택표준급평개인소、국내외주요정표장지특성급기비교,병분석총결료저사장지적리폐,탐토료금후외장복사정표장지건설、복사정표정도적제고급주법。
Ground radiation calibration site is useful of the radiometric calibration accuracy , especially for haven ’ t onboard calibration equipment.The calibration accuracy is decided to the optical , surface, weather conditions and other characteristics of the site .The basic selection criteria and evaluation factors of site , characteristics and comparisons within domestic and foreign major site are all de-scribed, and the advantages and disadvantages of these sites are analyzed and summarized .Finally, the approach to improve the accu-racy is discussed in the future .