高分一号_高分一号发射失败_高分四号

王婷, 廖秀英, 程辉. 2015. 高分一号卫星PMS传感器湖南攸县幅数据质量评价[J]. 地球物理学进展, 30(5): 2082-2088, doi: 10.6038/pg20150511

WANG Ting, LIAO Xiu-ying, CHENG Hui. 2015. Evaluation on data quality of GF-1 PMS sensor data in Youxian, Hunan province. Progress in Geophysics, 30(5): 2082-2088, doi: 10.6038/pg20150511

1. 湖南科技大学 建筑与城乡规划学院, 湘潭 411201;

2. 湖南科技大学 先进矿山装备工程研究中心, 湘潭 411201

作者简介: 王婷,女,1989年生,山西太原人,在读硕士,主要从事遥感图像处理与GIS相关的理论研究工作.(E-mail: tt890203@163.com)

通讯作者: 廖秀英,女,1981年生,湖南浏阳人,博士,讲师,主要从事遥感图像处理与GIS相关的理论研究工作. (E-mail: liaoxiuying99@163.com)

摘要: 基于高分一号卫星PMS传感器接收的全色(0.45～0.90 μm)和蓝(0.45～0.52 μm)、绿(0.52～0.59 μm)、红(0.63～0.69 μm)波段数据,对其进行图像预处理,分别运用IHS变换、Brovey变换、乘积变换、主成分变换、小波变换和GS变换等六种方法进行数据融合,再以321波段组合分别彩色合成影像,结合SPOT5数据,从几何精度、辐射质量两个方面定量分析了该卫星PMS传感器的数据质量.结果表明:1)高分数据采用乘积变换的融合方法进行融合,效果较好；2)高分数据不存在波段错位现象,影像畸变、扭曲现象也极小；3)高分数据的整体辐度、波段间相关系数和光谱质量均略差于SPOT5数据,但是高分数据所含噪声较少,信息量较丰富.无论是从辐度还是信噪比方面来看,高分数据的1波段最好,3波段所含的信息量最多.

1. School of Architecture and Urban Planning, Hunan University of Science and Technology, Xiangtan 411201, China;

2. Engineering Research Center of Advanced Mining Equipment, Ministry of Education, Hunan University of Science and Technology, Xiangtan 411201, China

Abstract: The GF-1 satellite PMS sensor has four bands, red band (0.63～0.69 μm) (B1), green band (0.52～0.59 μm) (B2), blue band (0.45～0.52 μm) (B3) and pan band (0.45～0.90 μm) (B4). After appropriate data pre-processing, six methods of data fusion (e.g., IHS transform, Brovey transform, Multiplicative transform, Principal Component transform, Wavelet transform and Gram Schmidt transform) have been carried out, and the geometry accuracy and radiance quality of PMS false color composite fused data were quantitatively evaluated by comparing with SPOT5 data. The results showed that 1)PMS data is better by using Multiplicative method than other methods; 2)There is no deviation between the 3 bands of PMS, and the geometric distortion is very small; 3)In comparison with SPOT5, the PMS data have a little worse radiance precision, a bit lower correlation coefficient between bands and somewhat worse spectral quality, but they have less noise, more information. In conclusion, the first band of PMS data is the best, and the third band has the most information both for radiance precision and Signal to Noise Ratio.

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