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Advances in Earth Science  2009, Vol. 24 Issue (7): 696-705    DOI: 10.11867/j.issn.1001-8166.2009.07.0696
Design and Implementation of Airborne Wide-angle Infrared Dual-mode Line/area Array Scanner in Heihe Experiment
Fang Li1, Liu Qiang1, Xiao Qing1, Liu Qinhuo1, Liu Zhigang2
1.State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing Applications, Chinese Academy of sciences, Beijing  100101, China; 
2.School of Geography, Beijing Normal University, Beijing  100875, China
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  Wide-angle infrared Dual-mode line/area Array Scanner (WiDAS) is an airborne remote sensing instrument designed to acquire multi-angle infrared remote sensing data, which is one of the essential observation in the simultaneous remote sensing and ground-based experiment in the Heihe river basin. After a brief introduction of the research background and hardware structure, the processing algorithms and product system for WiDAS thermal data are subsequently proposed according to the characteristics of WiDAS imaging system. In the end, the radiant directionality of six typical ground objects is extracted from calibrated and georectified WiDAS data, which indicates WiDAS as a good data source for study of land surface radiant directionality in MIR and TIR band.

Key words:  Multi-angle remote sensing      Radiant directionality      Radiometric calibration      Geometric calibration     
Received:  12 January 2009      Published:  10 July 2009
Corresponding Authors:  Liu Qiang     E-mail:
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Fang Li, Liu Qiang, Xiao Qing, Liu Qinhuo, Liu Zhigang. Design and Implementation of Airborne Wide-angle Infrared Dual-mode Line/area Array Scanner in Heihe Experiment. Advances in Earth Science, 2009, 24(7): 696-705.

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