New SAR real-time imaging optical system design

Zhi-peng CAI; Xing-xiang ZHANG; Zhe CHEN; Guo-ling BI; Hong-jun WANG

doi:10.37188/YJYXS20203511.1185

您当前的位置：

首页 >

文章列表页 >

New SAR real-time imaging optical system design

Image Processing | 更新时间：2020-10-30

- New SAR real-time imaging optical system design
- Chinese Journal of Liquid Crystals and Displays Vol. 35, Issue 11, Pages: 1185-1194(2020)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
- 作者简介：
- 基金信息：
- DOI：10.37188/YJYXS20203511.1185
  CLC： TP394.1;TH691.9
- Received：14 April 2020，
  
  Revised：30 June 2020，
  
  Accepted：30 June 2020，
  
  Published：05 November 2020
- 稿件说明：
移动端阅览
Zhi-peng CAI, Xing-xiang ZHANG, Zhe CHEN, et al. New SAR real-time imaging optical system design[J]. Chinese journal of liquid crystals and displays, 2020, 35(11): 1185-1194.
DOI：

Zhi-peng CAI, Xing-xiang ZHANG, Zhe CHEN, et al. New SAR real-time imaging optical system design[J]. Chinese journal of liquid crystals and displays, 2020, 35(11): 1185-1194. DOI： 10.37188/YJYXS20203511.1185.

摘要

为了实现对合成孔径雷达（Synthetic Aperture Radar，SAR）数据实时成像处理的目的，在利用空间光调制器（SLM）的基础上，设计了SAR数据实时成像斜平面光学处理器，并调整光路，在保证像质的情况下减少系统所占体积。首先，利用SLM代替传统斜平面处理器中的胶片，提高SAR数据光电转换的速率。然后，根据已知的SAR相关数据设置光学处理器的结构参数。根据SAR的横纵缩尺比设计满足要求放大率的柱透镜，根据柱透镜的总体长度设计球面镜，以保证柱透镜有足够的工作空间，球面镜部分设计为4组元全对称结构形式。设计完成后，再调整光路以减少系统所占体积，紧凑轻便以便于星载或机载使用。设计结果表明，系统MTF在截止频率内均大于0.4，满足成像要求。光路优化调整后，由总长1 400 mm左右变为700 mm左右，满足设计要求和实际使用要求。

Abstract

In order to achieve the purpose of real-time imaging processing of synthetic aperture radar (SAR) data

based on the use of spatial light modulator (SLM)

a SAR data real-time imaging oblique plane optical processor is designed

and the optical path is adjusted to ensure image quality and reduce the volume occupied by the system. First

SLM is used to replace the film in the traditional oblique plane processor to reduce the photoelectric conversion rate of SAR data. Then

the structural parameters of the optical processor are set according to the known SAR related data. According to the horizontal and vertical reduction ratio of SAR

a cylindrical lens that meet the required magnification is designed

and a spherical lens is designed according to the overall length of the cylindrical lens to ensure that the cylindrical lens has sufficient working space. After the design is completed

the optical path is adjusted to reduce the volume occupied by the system

which is compact and lightweight for easy use on spaceborne or on board. The design results show that the system MTF is greater than 0.4 in the cut-off frequency

which meets the imaging requirements. After the optical path is optimized and adjusted

the total length is changed from 1 400 mm to about 700 mm. The results meet the design requirements and actual use requirements.

关键词

Keywords

references

E N LEITH . Optical processing techniques for simultaneous pulse compression and beam sharpening . IEEE Transactions on Aerospace and Electronic Systems , 1968 . AES-4 ( 6 ): 879 - 885 . DOI: 10.1109/TAES.1968.5409056 http://doi.org/10.1109/TAES.1968.5409056 .

S M PARKES , H L CLIFTON . The compression of raw SAR and SAR image data . International Journal of Remote Sensing , 1999 . 20 ( 18 ): 3563 - 3581 . DOI: 10.1080/014311699211200 http://doi.org/10.1080/014311699211200 .

L J CUTRONA , E N LEITH , L J PORCELLO , 等 . On the application of coherent optical processing techniques to synthetic-aperture radar . Proceedings of the IEEE , 1966 . 54 ( 8 ): 1026 - 1032 . DOI: 10.1109/PROC.1966.4987 http://doi.org/10.1109/PROC.1966.4987 .

D A AUSHERMAN . Digital versus optical techniques in synthetic aperture radar (SAR) data processing . Optical Engineering , 1980 . 19 ( 2 ): 192157 http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980OptEn..19..157A&db_key=PHY&link_type=ABSTRACT http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980OptEn..19..157A&db_key=PHY&link_type=ABSTRACT .

MARCHESE L, BOURQUI P, TURGEON S, et al . A SAR multilook optronic processor for operational earth monitoring applications[C]// Proceedings of SPIE 7829, SAR Image Analysis , Modeling , and Techniques X . Toulouse, France: SPIE, 2010: 782904.

MARCHESE L, DOUCET M, HARNISCH B, et al . Real-time optical processor prototype for remote SAR applications[C]// Proceedings of SPIE 7477, Image and Signal Processing for Remote Sensing XV . Berlin, Germany: SPIE, 2009: 74771H.

BOURQUI P, HARNISCH B, MARCHESE L, et al . Optical SAR processor for space applications[C]// Proceedings of SPIE 6958, Sensors and Systems for Space Applications II . Orlando, USA: SPIE, 2008: 69580J.

MARCHESE L, DOUCET M, HARNISCH B, et al . A real-time high-resolution optical SAR processor[C]// Proceedings of SPIE 7669, Radar Sensor Technology XIV . Orlando, USA: SPIE, 2010: 76690M.

周琦 , 陆俊发 , 印建平 . 空间光调制器对入射光场调制特性的实验研究 . 液晶与显示 , 2013 . 28 ( 3 ): 349 - 353 . http://cjlcd.lightpublishing.cn/thesisDetails?columnId=1699329&Fpath=&index=-1&l=zh http://cjlcd.lightpublishing.cn/thesisDetails?columnId=1699329&Fpath=&index=-1&l=zh .

Q ZHOU , J F LU , J P YIN . Experimental study of modulation characteristics of spatial light modulator . Chinese Journal of Liquid Crystals and Displays , 2013 . 28 ( 3 ): 349 - 353 . http://cjlcd.lightpublishing.cn/thesisDetails?columnId=1699329&Fpath=&index=-1&l=zh http://cjlcd.lightpublishing.cn/thesisDetails?columnId=1699329&Fpath=&index=-1&l=zh .

刘洪顺 , 王喆 , 胡琪 , 等 . 基于空间光调制器的层析成像技术 . 中国光学 , 2019 . 12 ( 6 ): 1338 - 1347 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zggxyyygxwz201906015 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zggxyyygxwz201906015 .

H S LIU , Z WANG , Q HU , 等 . Tomography technology based on spatial light modulator . Chinese Optics , 2019 . 12 ( 6 ): 1338 - 1347 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zggxyyygxwz201906015 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zggxyyygxwz201906015 .

夏春秋 , 钟兴 , 刘春雨 , 等 . 高分辨率4f传像系统分辨率的影响因素分析 . 光学精密工程 , 2016 . 24 ( 7 ): 1573 - 1581 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gxjmgc201607005 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gxjmgc201607005 .

C Q XIA , X ZHONG , C Y LIU , 等 . Analysis of influence factors of resolution in high-resolution 4f imaging system . Optics and Precision Engineering , 2016 . 24 ( 7 ): 1573 - 1581 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gxjmgc201607005 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gxjmgc201607005 .

王刚 , 孙杰 , 郭俊 , 等 . 光全息中傅里叶变换透镜设计 . 光电工程 , 2011 . 38 ( 11 ): 141 - 145 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gdgc201111025 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gdgc201111025 .

G WANG , J SUN , J GUO , 等 . Design of Fourier transform lens in optical holography . Opto-Electronic Engineering , 2011 . 38 ( 11 ): 141 - 145 . http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gdgc201111025 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=gdgc201111025 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Attributed scattering center matching based on deep belief network and application in target recognition of SAR images

SAR Target recognition using deep features learned by Res-Net

Related Author

XU Yan-long

PAN Hao

DING Bai-yuan

许延龙

潘昊

丁柏圆

LIU-fei

GAO-hongyani

Related Institution

College of Information Engineering， Shenyang University of Chemical Technology

PLA Troops

PLA 96901 Troops

Institute of Physics and Optoelectronics Technology， Baoji University of Arts and Science

Advanced Titanium Alloys and Functional Coatings Cooperative Innovation Center， Baoji University of Arts and Science

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China 130033 Postal code：130033
Tel：0431-86176059 Email：yjxs@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