Study of the drift angle control in a space camera

LI You-yi

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Study of the drift angle control in a space camera

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- Study of the drift angle control in a space camera
- Optics and Precision Engineering Vol. 10, Issue 4, Pages: 402-406(2002)
- 作者机构：
  
  中国科学院长春光学机密机械与物理研究所,吉林长春,130022
- 作者简介：
- 基金信息：
- DOI：
  CLC： V447.3
- Received：16 July 2001，
  
  Revised：01 April 2002，
  
  Published Online：15 August 2002，
  
  Published：15 August 2002
- 稿件说明：
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李友一. 空间相机中的偏流角控制[J]. 光学精密工程, 2002,(4): 402-406

LI You-yi. Study of the drift angle control in a space camera[J]. Editorial Office of Optics and Precision Engineering, 2002,(4): 402-406
李友一. 空间相机中的偏流角控制[J]. 光学精密工程, 2002,(4): 402-406 DOI：

LI You-yi. Study of the drift angle control in a space camera[J]. Editorial Office of Optics and Precision Engineering, 2002,(4): 402-406 DOI：

摘要

像移补偿技术是高分辨力空间相机的移补偿技术是高分辨力空间相机的关键技术.由于偏流角的存在

使得像移速度在像面坐标系存在两个分量:前向像移速度和横向像移速度

偏流角控制本质上是消除横向像移速度

因此

偏流角控制是空间相机像移补偿的一部分.不同类型的空间相机有不同的像移补偿措施

也就有不同的偏流角控制方法

本文对像移补偿方法中的偏流角控制及作用进行分析

并且介绍和分析了采用TDICCD器件的图像传输型空间相机的偏流角控制的方法.

Abstract

Image motion compensation(IMC) is the key technology of a high-resolution space camera. Image motion speed is seperated into two vectors in the image coordinate for existence of the drift angle:the forward direction image motion speed and the crosswise image motion speed.In fact

drift angle control eliminates the crosswise image motion speed

so it is a part of image motion compensation. Different kind space cameras use different image motion compensation methods and drift angle controls

respectively. The applications of drift angle control in the mechanical image motion compensation and electronic image motion compensation are introduced and analyzed in this paper.The drift angle control method in a TDICCD image tansfer space camera is emphasized.

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Keywords

references

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