光学精密工程2011，Vol.19Issue(6)：1235-1243,9.DOI:10.3788/OPE.20111906.1235
高光谱遥感系统调制传递函数的在轨测试
On-orbit detection for modulation transfer function of hyperspectrai remote sensing system
摘要
Abstract
In order to realize the measurement for Modulation Transfer Function(MTF)of an on-orbit hyperspectral remote sensing system, factors of image quality degradation of the system were analyzed and the detection method for MTF was discussed by taking the dispersive hyperspectral remote sensing system for an example. Firstly, the three-dimensional separability of the MTF of the dispersive hyperspectral remote sensing system was illustrated. Then, an anti-noise MTF detecting technique was proposed concerning the charateristic of the low signal-to-noise ratio of the hyperspectral remote sensing system. A criterion of selecting MTF detection region was also proposed based on the large quantity of the bands in hyperspectral systems. Finally, the proposed methods were demonstrated by using the PHI remote sensing images and the PHI degraded images were restored with the detected MTF. Experimental results indicate that the average gradient has been improved by 67. 1 % and thedetail-signal energy improved by 65. 2%, which proves the effectiveness of the proposed method.关键词
高光谱遥感；调制传递函数检测；抗噪声；区域选择Key words
hyperspectral remote sensing/Modulation Transfer Function(MTF) detection/anti-noise/region selection分类
信息技术与安全科学引用本文复制引用
赵慧洁,秦宝龙,贾国瑞..高光谱遥感系统调制传递函数的在轨测试[J].光学精密工程,2011,19(6):1235-1243,9.基金项目
国家863高技术研究发展计划资助项目(No.2008AA121102,2009AA12Z119)；长江学者和创新团队发展计划资助项目(No.IRT0705) （No.2008AA121102,2009AA12Z119）
