Multi-model control of dynamic scanning assembly imaging system

XU Zheng-Ping; KUANG Hai-peng; XU Yong-sen

doi:10.3788/OPE.20132105.1282

您当前的位置：

首页 >

文章列表页 >

Multi-model control of dynamic scanning assembly imaging system

更新时间：2020-08-12

- Multi-model control of dynamic scanning assembly imaging system
- Optics and Precision Engineering Vol. 21, Issue 5, Pages: 1282-1290(2013)
- 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,130033
  2. 中国科学院长春光学精密机械与物理研究所中国科学院航空光学成像与测量重点实验室,吉林长春,130033
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20132105.1282
  CLC： TP73;TP273
- Received：07 March 2012，
  
  Revised：18 April 2012，
  
  Published Online：24 May 2013，
  
  Published：15 May 2013
- 稿件说明：
移动端阅览
徐正平匡海鹏许永森. 动态扫描拼接成像系统的多模控制[J]. 光学精密工程, 2013,21(5): 1282-1290

XU Zheng-Ping KUANG Hai-peng XU Yong-sen. Multi-model control of dynamic scanning assembly imaging system[J]. Editorial Office of Optics and Precision Engineering, 2013,21(5): 1282-1290
徐正平匡海鹏许永森. 动态扫描拼接成像系统的多模控制[J]. 光学精密工程, 2013,21(5): 1282-1290 DOI： 10.3788/OPE.20132105.1282.

XU Zheng-Ping KUANG Hai-peng XU Yong-sen. Multi-model control of dynamic scanning assembly imaging system[J]. Editorial Office of Optics and Precision Engineering, 2013,21(5): 1282-1290 DOI： 10.3788/OPE.20132105.1282.

摘要

提出了凸轮驱动的线阵CCD像面动态扫描拼接方法以扩大遥感仪器的覆盖宽度，并对系统负载非平衡特性及其多模控制算法进行了分析。讨论了现有拼接方法的优缺点，进而引入凸轮驱动的动态扫描拼接方法。该方法采用电机和凸轮作执行机构，电机做匀速旋转运动，通过凸轮带动多个线阵CCD做往复直线运动，实现动态扫描拼接。为了提高CCD成像质量，从理论上对凸轮结构的特殊性、平台姿态角及相机方位角造成的系统负载非平衡特性进行了分析，结果表明：平台俯仰角对负载非平衡特性影响较小，可以忽略；当平台横滚角和相机位角之和非零时，负载力矩在凸轮升程段和回程段表现出不同的特性。针对凸轮升程段和回程段采用相同控制器时凸轮转速在两阶段存在转速降的情况，提出了变输入的多模控制方法，并进行了相关实验。结果表明：变输入的多模控制方法可有效消除凸轮转速在升程段和回程段存在的转速降，且在从动件匀速段的凸轮稳速精度达到0.48%。该方法简单、方便，易于工程实现。

Abstract

Linear CCD dynamic scanning assembly actuated by a cam was proposed to extend the coverage of the remote sensing instruments

and the nonequilibrium load feature of the system and related multimodel control arithmetic were analyzed in detail. After discussing the strongpoint and shortcoming of existing methods

the dynamic scanning assembly actuated by a cam was introduced. In this method

a motor and a cam were used as the acting devices. The motor rotated at a constant speed and the linear CCDs were driven by the cam to reciprocate on the focal plane. The nonequilibrium load feature of the system was introduced by the special structure of the cam

platform attitude angles and the camera azimuth. As the nonequilibrium load feature could effect the CCD image

it was analyzed in theory. Analysis results show that the platform pitch angle affects slightly the nonequilibrium load feature

so it could be ignored. When the sums of platform roll angle and camera azimuth are not zero

the load torque shows different features in the lift section and return section of the cam. In consideration of that the cam speed was different in the lift section and return section of the cam when the same controller was used

one multimodel controlling method with varying input signals was imported. The relative experiments were performed and the results show that the difference between camspeeds in the lift section and return section can be eliminated effectively by the multimodel controlling method with varying inputs. The rotate speed precision of the cam is 0.48% in the uniform section of the follower. It concludes that this method is simple and convenient to be realized.

关键词

Keywords

references

李朝辉，王肇勋，武克用. 空间相机CCD焦平面的光学拼接 \[J\]. 光学精密工程,2000,8(3):213-216.LI C H,WANG Z X ，WU K Y. Optical assembly of CCD focal plane for space camera\[J\]. Opt. Precision Eng., 2000, 8(3):213-216. (in Chinese)[2]张星祥，任建岳. TDI CCD焦平面的机械交错拼接 \[J\]. 光学学报,2006,26(5): 740-745.ZHANG X X ，REN J Y. Mechanical interleaving assembly of TDICCD focal plane image \[J\]. Acta Optica Sinica, 2006, 26(5): 740-745. (in Chinese)[3]耿文豹，翟林培，丁亚林. 光电成像系统的像面覆盖方法分析 \[J\]. 半导体光电，2009，30(3)：448-450.GENG W B, ZHAI L P，DING Y L. Analysis of focal plane coverage for E-O imaging systems \[J\]. Semiconductor Optoelectroniccs., 2009, 30(3): 448-450. (in Chinese)[4]黄浦，葛文奇，李友一，等. 航空相机前向像移补偿的线性自抗扰控制 \[J\]. 光学精密工程, 2011，19(4)：812-819.HUANG P，GE W Q，LI Y Y，et al.. Linear auto disturbance rejection control of forward image motion compensation in aerial cameras \[J\]. Opt. Precision Eng., 2011，19 (4) ：812-819. (in Chinese)[5]王德江，董斌，李文明，等. TDI CCD电荷转移对遥感相机成像质量的影响 \[J\]. 光学精密工程, 2011，19(10)：2500-2506.WANG D J，DONG B，LI W M，et al.. Influence of TDI CCD charge transfer on imaging quality in remote sensing system \[J\]. Opt. Precision Eng., 2011，19 (10) ：2500-2506. (in Chinese)[6]李焱，曹立华，王弟男. 惯导平台下舰载光电搜索跟踪系统的控制 \[J\]. 光学精密工程, 2011，19(5)：1126-1133.LI Y，CAO L H，WANG D N. Controlling of shipborne optoelectronic searching and tracking system based on inertial navigation platform \[J\]. Opt. Precision Eng., 2011，19 (5) ：1126-1133. (in Chinese)[7]张斌，李洪文，郭立红，等. 变结构PID在大型望远镜速度控制中的应用 \[J\]. 光学精密工程, 2010，18(7)：1613-1619.ZHANG B，LI H W，GUO L H，et al.. Application of variable structure PID in velocity control for large telescope \[J\]. Opt. Precision Eng., 2010，18 (7) ：1613-1619. (in Chinese)[8]李兴华，翟林培. 含有凸轮机械的机电系统建模与仿真 \[J\]. 光学精密工程, 1999，7(5)：49-55.LI X H，ZHAI L P. Modeling and simulation of electromechanical system with cam mechanism \[J\]. Opt. Precision Eng., 1999，7 (5) ：49-55. (in Chinese)[9]徐正平，葛文奇，杨守旺，等. 像面扫描系统负载非平衡特性分析 \[J\]. 工程设计学报, 2010，17(2)：102-106.XU ZH P，GE W Q，YANG SH W，et al.. Analysis on non-equilibrium load feature of image scanning system \[J\]. Journal of Engineering Design., 2010，17 (2) ：102-106. (in Chinese)[10]徐正平，李友一，葛文奇. 非平衡宽覆盖像面扫描系统的神经网络控制 \[J\]. 光学精密工程, 2010，18(12)：2680-2687.XU ZH P，LI Y Y，GE W Q. Neural network control to image scanning system with non-equilibrium load and wide coverage \[J\]. Opt. Precision Eng., 2010，18 (12) ：2680-2687. (in Chinese)

Views

275

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

No data

Related Author

No data

Related Institution

No data

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176855 Email：gxjmgc@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰