Calculation of change of space intersection angle for mapping camera

HAN Xu; MA Jun; WANG Zhong-su; HAN Dong; HUANG Tao

doi:10.3788/OPE.20111912.2862

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Calculation of change of space intersection angle for mapping camera

Article | 更新时间：2020-08-12

- Calculation of change of space intersection angle for mapping camera
- Optics and Precision Engineering Vol. 19, Issue 12, Pages: 2862-2869(2011)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
  2. 长春理工大学光电工程学院,吉林长春,130022
  3. 长春工业大学机电工程学院,吉林长春,100012
  4. 中国科学院高能物理所北京,100049
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20111912.2862
  CLC： TP73;V243.5
- Received：19 April 2011，
  
  Revised：21 June 2011，
  
  Published Online：25 December 2011，
  
  Published：25 December 2011
- 稿件说明：
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韩旭, 马军, 王忠素, 韩冬, 黄涛. 测绘相机在轨空间交会角变化的计算[J]. 光学精密工程, 2011,19(12): 2862-2869

HAN Xu, MA Jun, WANG Zhong-su, HAN Dong, HUANG Tao. Calculation of change of space intersection angle for mapping camera[J]. Editorial Office of Optics and Precision Engineering, 2011,19(12): 2862-2869
韩旭, 马军, 王忠素, 韩冬, 黄涛. 测绘相机在轨空间交会角变化的计算[J]. 光学精密工程, 2011,19(12): 2862-2869 DOI： 10.3788/OPE.20111912.2862.

HAN Xu, MA Jun, WANG Zhong-su, HAN Dong, HUANG Tao. Calculation of change of space intersection angle for mapping camera[J]. Editorial Office of Optics and Precision Engineering, 2011,19(12): 2862-2869 DOI： 10.3788/OPE.20111912.2862.

摘要

由于测绘相机在轨空间交会角在5内变化才能保证数据的可靠传输

本文研究了测绘相机交会角变化的计算方法。首先

利用I-deas软件计算了测绘相机在极端高温和低温两种工况下的温度场。然后

将计算得到的温度场作为温度载荷施加给结构模型

实现了由温度网格到结构网格的温度映射

即简单有限元模型到复杂有限元模型温度载荷的映射;计算了测绘相机的热弹性变形

得到了光学元件中心点变形量。最后

利用自编的软件计算了在两种极端温况下正视和后视相机的在轨交会角变化。结果表明

测试相机在高温和低温工况下空间交会角的变化在5范围内。该计算方法可得到空间相机交会角的变化量

计算数据可为测绘相机光机结构设计和热控方案的制定提供数据保障。

Abstract

This paper researches the calculation method for the change of space intersection angle of a mapping camera

for the change of the angle should be within 5 to ensure the reliability of transmitting data in orbit. First

the temperature field was calculated for high and low temperature operating conditions with the I-deas software. Then

the calculated temperature field was input to a structural model as temperature load to complete the temperature mapping from a temperature model to the structural model

namely

from a simple model to a complex model. The thermal-elastic deformation was calculated and the center of optical element deformation was obtained. Finally

the change of space intersection angle of the mapping camera was calculated in two operating conditions with a self-programming software. The results show that the change of intersection angle is below 5 when the temperature operating condition is changed. It concludes that the calculated method can get the accurate change of intersection angle and the calculated data can benefit to the analysis on the space mapping.

关键词

Keywords

references

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中国科学院长春光学精密机械与物理研究所

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Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences 2. Graduate University of Chinese Academy of Sciences

Research Center for Space Optical Engineering, Harbin Institute of Technology, Harbin institute of Technology

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