高分辨光学卫星传感器在轨MTF检测

徐伟伟; 张黎明; 沈政国; 司孝龙; 陈洪耀

doi:doi:10.3969/j.issn.1673-6141.2014.02.003

大气与环境光学学报, 2014, 9 (2): 97, 网络出版: 2014-03-31

高分辨光学卫星传感器在轨MTF检测

On-Orbit MTF Estimation of High Resolution Satellite Optical Sensor

论文大纲

徐伟伟 ^*张黎明沈政国司孝龙陈洪耀

作者单位

中国科学院安徽光学精密机械研究所中国科学院通用光学定标与表征技术重点实验室, 安徽合肥 230031

调制传递函数刃边法脉冲法点源法周期靶标法 modulation transfer function knife-edge method pulse method point source method periodic target method

摘要

调制传递函数(MTF)是光学卫星传感器像质评价的重要参数,在轨MTF检测关系到高分辨卫星遥感数据的应用和未来卫星遥感器的发展。目前主要有刃边法、脉冲法、点源法、周期靶标法等多种在轨MTF检测方法,这些方法各有特点,均取得一定的在轨检测成效。通过对常用的在轨MTF检测方法的论述,对比分析了不同方法的适用范围、参照目标布设、数据处理及应用效果等,以期提高不同空间分辨率的光学卫星传感器在轨MTF检测精度。

Abstract

Modulation transfer function (MTF) is an important parameter for image quality evaluation of satellite optical sensors. In-flight MTF measurement is also significant to the application of high resolution satellite remote sensing data and development of future satellite sensors. There are many on-orbit MTF estimation methods such as knife-edge method, pulse method, point source method and periodic target method. All these methods have their own features and achieved a certain degree of results. In order to improve MTF estimation accuracy of different spatial resolution optical satellite sensors, comparison and analysis are carried out in application scope, target deployment, data processing and application effects of different methods by expositing in-flight MTF measurement which is commonly used.

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徐伟伟, 张黎明, 沈政国, 司孝龙, 陈洪耀. 高分辨光学卫星传感器在轨MTF检测[J]. 大气与环境光学学报, 2014, 9(2): 97. XU Wei-wei, ZHANG Li-ming, SHEN Zheng-guo, SI Xiao-long, CHEN Hong-yao. On-Orbit MTF Estimation of High Resolution Satellite Optical Sensor[J]. Journal of Atmospheric and Environmental Optics, 2014, 9(2): 97.

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