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  • 软件名称:机载AISAEagleⅡ高光谱数据处理—以额济纳旗试验区为例
  • 软件大小: 0.00 B
  • 软件评级: ★★★
  • 开 发 商: 荚文,庞勇,岳彩荣,李增元,车涛,马明国
  • 软件来源: 《遥感技术与应用》
  • 解压密码:www.gissky.net

资源简介

摘要: 机载AISAEagleⅡ传感器为“黑河综合遥感联合试验(HiWATER)”额济纳旗试验区提供航空高光谱影像.介绍了高光谱原始数据的辐射定标、几何校正、大气校正等预处理过程.根据研究区地形差异以及数据使用目的的多样性,几何校正中可选择是否加高精度DEM 产品,大气校正的选择策略可分为平坦地形无DEM 的大气校正和起伏地形添加DEM 大气校正.本试验数据采用加载高精度DEM 的几何校正和平坦地形大气校正方法,经过预处理后的高光谱数据产品,其地理坐标与高分辨率的CCD影像对比,地理位置信息较为准确;与实测地物光谱对比,影像光谱能较好地体现地物光谱的特性,数据可用作定量遥感进一步的研究. 关键词: AISAEagleⅡ;  高光谱;  预处理;  黑河综合遥感联合试验     Abstract: The airborne AISA Eagle Ⅱ sensor collected hyperspectral images for “Heihe Watershed Allied Telemetry Experimental Research” (HiWATER) in the study area of Ejina Banner.This paper presents some of the pre\|processing methods such as radiance calibration,geometric correction and atmosphere correction etc.According to the geography distinction of study area and diversity purposes of using data,it is selectable to load the high precision DEM data in the processing of geometric correction.And the strategies of atmospheric correction have two modes:flat terrain atmospheric correction (no DEM data) and rugged topography atmospheric correction (add DEM data).This experiment choose the geometric correction load with high precision DEM data and flat terrain atmospheric correction.After above pre\|processing procedure,the geographic position as well as spectral characteristics in hyperspectral images were achieved at higher accuracies which compared with the geographic position in high resolution CCD image and spectral characteristics of field plots,the processed data can be used for further research in quantitative remote sensing.

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