›› 2011, Vol. 31 ›› Issue (3): 51-55.doi: 10.3780/j.issn.1000-758X.2011.03.008

• 技术交流 • 上一篇    下一篇

像元尺寸对空间光学探测系统性能的影响

曾德贤, 杜小平   

  1. (装备指挥技术学院,北京 101416)
  • 收稿日期:2010-10-22 修回日期:2010-12-05 出版日期:2011-06-25 发布日期:2011-06-25
  • 作者简介:曾德贤 1978年生,2009年获装备指挥技术学院通信与信息系统专业博士学位,讲师。主要研究方向为光学测量与系统评估
  • 基金资助:

    国家高技术发展计划863项目

Influence of Detector’s Pixel Size on Performance of Optical Detection System

ZENG  De-Xian, DU  Xiao-Ping   

  1. (The Academy of Equipment Command & Technology, Beijing 101416)
  • Received:2010-10-22 Revised:2010-12-05 Online:2011-06-25 Published:2011-06-25

摘要: 针对空间光学探测系统的组成和特点,采用调制传递函数(MTF)作为系统性能指标,通过建立光学系统、探测器系统、离焦和像移调制传递函数模型,仿真分析了像元尺寸对系统成像性能的影响。结果表明,随着像元尺寸减小,探测器系统MTF值增大,光学系统、离焦、像移等的MTF值都变小,从而为像元尺寸的确定提供了参考依据。

关键词: 像元尺寸, 图像传感器, 调制传递函数, 空间光学探测, 性能指标, 航天遥感

Abstract: In terms of optical detector construction and characteristic, the modulation transfer function (MTF) was selected as the system performance index, and MTF models were established. The influences of pixel size on the optical detector performance were analyzed by simulation. The results show that as the pixel size decreases, the image sensor MTF increases, while the optical system, defocus, image motion MTF decreases.

Key words: Pixel size, Image sensor, Modulation transfer function, Optical detector, Performance index, Space remote sensing