面向地学应用的高光谱遥感器指标体系设计

刘银年; 丁学专; 李志忠

doi:10.3799/dqkx.2015.109

面向地学应用的高光谱遥感器指标体系设计

doi: 10.3799/dqkx.2015.109

刘银年^{1, 2,},
丁学专^{1, 2},
李志忠³

1.
中国科学院上海技术物理研究所, 上海 200083
2.
中国科学院红外探测与成像技术重点实验室, 上海 200083
3.
中国地质调查局油气资源调查中心, 北京 100029

基金项目:

国家高技术研究发展计划(863计划)项目 2008AA121100

国家高技术研究发展计划(863计划)项目 2012AA12A308

国家高技术研究发展计划(863计划)项目 2014AA123201

国家自然科学基金项目 41402293

详细信息

作者简介:
刘银年(1971-), 男, 博士生导师, 研究员, 主要从事航天遥感仪器方面的研究.E-mail: ynliu@mail.sitp.ac.cn

中图分类号: P24
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- 被引次数: 0
出版历程
- 收稿日期: 2015-04-01
- 刊出日期: 2015-08-01

Specification Design of Hyperspectral Imaging Remote Sensor Used in Geosciences

Liu Yinnian^{1, 2
,},
Ding Xuezhuan^{1, 2},
Li Zhizhong³

1.
Shanghai Institute of Technical Physics of the Chinese Academy of Science, Shanghai 200083, China
2.
Infrared Detecting and Imaging, Key Laboratory of Chinese Academy of Science, Shanghai 200083, China
3.
Oil & Gas Survey, China Geological Survey, Beijing 100029, China

摘要

摘要: 高光谱成像技术在地物精确分类上的巨大优势, 使其成为地学遥感领域的热点与主要技术手段.为确定适合地学应用的高光谱遥感器的指标体系, 分析了地学应用的需求, 以及高光谱传感器各指标之间的"约束"关系, 包括空间分辨率、光谱分辨率、幅宽以及信噪比等.提出了高分辨率与宽幅高光谱遥感器的指标体系, 利用宽幅高光谱数据与高分辨率高光谱数据, 可同时满足大范围调查以及重点区域详查的地学应用需求, 为未来地学应用高光谱遥感器的体系化发展提供了参考和支持.
- 高光谱 /
- 遥感 /
- 地学 /
- 指标体系
Abstract: Enjoying great advantage in accurate classification of ground objects, hyperspectral imaging technology has become popular in geological remote sensing. To determine the suitable sensor specifications for the geological applications, the users' demand and relationship between hyperspectral sensor's specifications including ground resolution, spectral resolution, swath and SNR are analyzed. Specifications of high resolution and wide swath hyper-spectral sensors for geosciences are proposed. Both large area searching and specific area monitoring in details can be achieved with the specifications system, which can facilitate further development of hyperspectral remote sensing in geological applications.
- hyper-spectral /
- remote sensing /
- geology /
- specification

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表 1 国外星载高光谱遥感器参数

Table 1. Parameters of foreign satellite hyperspectral sensors

仪器指标		HSI	Hyperion	COIS	CHRIS	OrbView-4	CRISM
国家		U.S.A.	U.S.A.	U.S.A.	E.S.A.	U.S.A.	U.S.A.
卫星名		LEWIS	EO-1	NEMO	PROBA-1	Orbview-4	MRO
波段范围(μm)	VNIR	0.40~1.00	0.40~1.00	0.40~1.00	0.40~1.05	0.45~5.00	0.40~1.05
波段范围(μm)	SWIR	1.00~2.50	0.90~2.50	0.90~2.50	0.40~1.05	0.45~5.00	1.05~4.05
光谱通道数(个)	VNIR	128	220	210	18 or 62	200	558
光谱通道数(个)	SWIR	256	220	210	18 or 62	200	558
空间分辨率(m)	VNIR	30	30	30 or 60	17 or 34	8 or 20	< 50
空间分辨率(m)	SWIR	30	30	30 or 60	17 or 34	8 or 20	< 50
刈副(km)		7.68	7.50	30.00	18.60	5.00	＞10
光谱分辨率(nm)	VNIR	5.00~6.00	10.00	10.00	1.25~11.00	11.70	< 9
光谱分辨率(nm)	SWIR	5.80		10.00	1.25~11.00	11.70	< 9
扫描方式		推帚式	推帚式	推帚式	推帚式	推帚式	推帚式
分光		grating	grating	grating	棱镜	grating	grating
轨道高度(km)		523.0	705.0	605.5	830.0	470.0	325.0
瞬时视场(mrad)		0.057	0.043	0.050	0.030
空间维像元		256	250	1 024	744	640	640

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表 2 高分辨率高光谱遥感器指标体系

Table 2. Parameters of high resolution hyper-spectral sensor

项目	VNIR	SWIR	LWIR
光谱范围(μm)	0.4~1.0	1.0~2.5	8.0~12.5
光谱分辨率(nm)	5~10	10~20	40~160
每景图像幅宽(km)	30×30	30×30	30×30
空间分辨率(m)	5	5	20
信噪比	≥200	≥150	NEΔT∶0.2K@300K
辐射定标精度	≤5%	≤5%	0.5K
光谱定标精度(nm)	0.5	1	8.0

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表 3 宽幅高光谱遥感器指标体系

Table 3. Parameters of wide swath hyper-spectral sensor

项目	VNIR	SWIR	LWIR
光谱范围(μm)	0.4~1.0	1.0~2.5	8.0~12.5
光谱分辨率(nm)	5~10	10~20	40~160
每景图像幅宽(km)	120×120	120×120	120×120
空间分辨率(m)	30	30	60
信噪比	≥250	≥200	NEΔT∶0.2K@300K
辐射定标精度	≤5%	≤5%	0.5K
光谱定标精度(nm)	0.5	1	8.0

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