大气与环境光学学报 ›› 2014, Vol. 9 ›› Issue (2): 97-111.

• “光学遥感定标技术及应用”专辑 • 上一篇    下一篇

高分辨光学卫星传感器在轨MTF检测

徐伟伟1,2, 张黎明1,2, 沈政国1,2, 司孝龙1,2, 陈洪耀1,2   

  1. (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)
  • 收稿日期:2013-09-29 修回日期:2013-11-14 出版日期:2014-03-28 发布日期:2014-03-20
  • 通讯作者: 徐伟伟(1983-),男,汉族,河南南阳人,博士,助理研究员,主要从事光学遥感器在轨检测及成像质量分析等方面研究。 E-mail:weilxu@aiofm.ac.cn
  • 作者简介:徐伟伟(1983-),男,汉族,河南南阳人,博士,助理研究员,主要从事光学遥感器在轨检测及成像质量分析等方面的研究。
  • 基金资助:

    国家自然科学基金(41301374)、国家863计划(2012AA12A302-2)、安徽省自然科学基金(1208085QD74)资助

On-orbit MTF Estimation of High Resolution Satellite Optical Sensor

XU Wei-wei, ZHANG Li-ming, SHEN Zheng-guo, SI Xiao-long, CHEN Hong-yao   

  1. ( Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China)
  • Received:2013-09-29 Revised:2013-11-14 Published:2014-03-28 Online:2014-03-20

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。

关键词: 调制传递函数, 刃边法, 脉冲法, 点源法, 周期靶标法

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.

Key words: modulation transfer function, knife-edge method, pulse method, point source method, periodic target method

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