Study on dynamic imaging on push-broom TDI CCD optical remote sensor

ZHAO Gui-jun; CHEN Chang-zheng; WAN Zhi; GUAN Ying-jun; LI Xian-sheng; REN Jian-yue

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Study on dynamic imaging on push-broom TDI CCD optical remote sensor

更新时间：2020-08-12

- Study on dynamic imaging on push-broom TDI CCD optical remote sensor
- Optics and Precision Engineering Vol. 14, Issue 2, Pages: 291-296(2006)
- 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. 中国科学院研究生院北京,100039
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP73
- Received：22 November 2005，
  
  Revised：18 December 2006，
  
  Published Online：30 April 2006，
  
  Published：30 April 2006
- 稿件说明：
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ZHAO Gui-jun, CHEN Chang-zheng, WAN Zhi, et al. Study on dynamic imaging on push-broom TDI CCD optical remote sensor[J]. Optics and precision engineering, 2006, 14(2): 291-296.
DOI：

ZHAO Gui-jun, CHEN Chang-zheng, WAN Zhi, et al. Study on dynamic imaging on push-broom TDI CCD optical remote sensor[J]. Optics and precision engineering, 2006, 14(2): 291-296. DOI：

摘要

针对基于推扫技术的TDI CCD空间光学遥感器动态成像试验

研制了一套检测系统。在系统中

设计了模拟卫星推扫的双支承U型结构精密转台。搭载遥感器

以角速度0.555°/s在±5°的范围内转动时

转台稳速控制精度达到0.3%。设计了一种奈奎斯特频率靶标

在每组矩形垂直靶条间加入公差为

a/n

的等差级数间隔靶条

解决了遥感器推扫时CCD像元与垂直靶条像匹配不确定性问题

使配准简化

提高了测量结果的准确性。试验结果表明:遥感器获得了垂直、水平及45°方向的0视场

±0.86视场奈奎斯特频率靶条像

验证了采用推扫技术的TDI CCD遥感器所具有的高品质。

Abstract

For the dynamic imaging test of push-broom TDI CCD (Time Delay Integration Charge Coupled Devices) space optical remote sensor

a kind of special test system was designed. A precise rotary platform with dual bearing and a U type frame was designed to simulate the satellite push-broom in the system. Within ±5° range it could be turned at the angle rate of 0.555°/s with rotary precision of 0.3% with the remote sensor being carried. A drone at Nequist Frquency was designed in which bar target in

a/n

tolerance of arithmetical progression was added between each group rectangle vertical bar in the drone. When the remote sensor worked under push-broom mode

the problem of the matching uncertainty between the target image and the CCD pixel be solved

which could simplify the registration and improve the measuring accuracy. The results prove that the drone image can be obtained at the Nequist Frquency in the field of view of 0 and ±0.86 in the vertical

horizontal and 45°directions. TDI CCD remote sensor is provided with high imaging quality based on push-broom technique.

关键词

Keywords

references

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