OVERVIEW OF THE GROUND APPLICATION SYSTEM OF SATELLITE-AVIATION-GROUND REMOTE SENSING DATA AT HOME AND ABROAD
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摘要:
遥感地面系统主要实现遥感数据的接收、处理、管理和分发功能。为了研发面向地质调查的、能够处理多源海量高光谱数据的、星-空-地一体化地质勘查遥感系统, 对国内外已有的小卫星、航空、地面岩芯等遥感地面系统的特点、组成和发展方向进行了调研和分析, 调研结果可为地质勘查遥感系统的研发提供技术基础和理论支持。
Abstract:Ground remote sensing system is mainly used for receiving, processing, managing and distributing, for developing a further satellite-aviation-ground system which can be applied to geological exploration and processing mass hyperspectral remote sensing data, this article summarized and analyzed characteristics, components and development direction of ground remote sensing system at home and abroad, such as satellite system, aviation system and ground core system. This overview offered technical basic and theoretical support for developing remote sensing system for geological exploration.
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表 1 FTHSI设计性能与在轨性能对比
Table 1. The designed performance of FTHSI and in-orbit performance comparison
指标 设计值 在轨值 光谱范围/nm 500~1050 475~1050 光谱分辨率/cm-1 97 84.4 准确度/cm-1 0.5 0.1 有用波段数 146 146 总视场/(°) 3 3 刈幅宽度/km 6.5~26.0 7.5~30.0 瞬时视场/(°) 0.0058/0.0029
(约100 μrad/50 μrad)0.0058/0.0029
(约100 μrad/50 μrad)沿轨成像条带长度/km 10.00~20.25 10.0~15.3 地面采样间隔/m 30 30 空间覆盖方式 推帚扫描 推帚扫描 载荷重量/kg 33 20.45 体积/cm3 0.17 0.17 辐射定标精度(RMS)/% 20 10~15 寿命/d 90 ＞700 
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表 2 CHRIS影像的数据特征
Table 2. The data feature of CHRIS images
光谱范围/
nm标准影像大小/
km*km成像模式/
种影像数据量/
Mbit影像存储格式 波段数量/
个光谱分辨率/
nm信噪比 400~1050 13*13 5 131 BSQ 18~62根据成像模式不同 5~12根据成像模式不同 200
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