基于振动测量的卫星图像复原及要求

智喜洋; 胡建明; 李文峰; 孔祥龙; 孙晅

doi:10.3788/OPE.20162413.0632

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基于振动测量的卫星图像复原及要求

更新时间：2020-08-13

- 基于振动测量的卫星图像复原及要求
- Satellite image restoration based on measured vibration information and requirements
- 光学精密工程 2016年24卷第10s期页码：632-639
- 作者机构：
  
  1. 哈尔滨工业大学空间光学工程研究中心,黑龙江哈尔滨,150001
  2. 上海卫星工程研究所上海,200240
- 作者简介：
- 基金信息：
  
  国家自然科学重点基金项目（91538201）()
- DOI：10.3788/OPE.20162413.0632
  中图分类号： TP751.1
- 收稿日期：2016-05-31，
  
  修回日期：2016-06-03，
  
  纸质出版日期：2016-11-14
- 稿件说明：
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智喜洋, 胡建明, 李文峰等. 基于振动测量的卫星图像复原及要求[J]. 光学精密工程, 2016,24(10s): 632-639

ZHI Xi-yang, HU Jian-ming, LI Wen-feng etc. Satellite image restoration based on measured vibration information and requirements[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 632-639
智喜洋, 胡建明, 李文峰等. 基于振动测量的卫星图像复原及要求[J]. 光学精密工程, 2016,24(10s): 632-639 DOI： 10.3788/OPE.20162413.0632.

ZHI Xi-yang, HU Jian-ming, LI Wen-feng etc. Satellite image restoration based on measured vibration information and requirements[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 632-639 DOI： 10.3788/OPE.20162413.0632.

摘要

针对卫星振动所致TDICCD相机图像降质复原的实际应用问题，研究了基于振动测量信息的卫星图像复原方法及其对振动指标要求。首先从卫星振动对图像质量的影响机理出发，给出了振动降质图像的退化规律以及基于振动测量信息的图像复原方法和参数解算方法；然后分析得出了在不同的振动频率、振幅、TDI级数组合条件下，振动测量误差对图像复原质量的影响规律；最后，通过开展振动复原实验，得出了振动测量误差对图像复原影响的定量关系。实验结果表明：当测量误差小于0.05 pixel时，复原后的图像能够满足SSIM优于0.9，几何畸变小于0.1 pixel的实际应用需求。为了保证图像复原质量，建议实际应用中对超过150 Hz的振动进行隔振。

Abstract

Aiming at the practical application problem of restoration for degraded image owing to satellite vibrations

a restoration method based on measured vibration information and the specification requirements were proposed. Firstly

effects of vibrations on image quality were analyzed based on imaging physical-process of TDICCD push-broom system. Then the methods of image restoration and corresponding parameter calculation were presented. Secondly

influence law of vibration measurement error on restored image quality were discussed in the cases of different vibration frequencies

amplitudes and TDIs. Finally

the quantitative relation between the measurement error and restoration performance was established by experiments. Experimental results indicate that the restored images can satisfy the practical requirement that SSIM is higher than 0.9 and geometric distortion is less than 0.1

when the measurement error should be less than 0.05 pixel

and vibrations with frequencies over 150 Hz should be isolated.

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Keywords

references

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