时空过采样系统及其在点目标检测中的性能仿真

董玉翠; 陈凡胜; 苏晓锋; 龚学艺; 李真真

doi:10.3788/OPE.20142209.2498

您当前的位置：

首页 >

文章列表页 >

时空过采样系统及其在点目标检测中的性能仿真

信息科学 | 更新时间：2020-08-13

- 时空过采样系统及其在点目标检测中的性能仿真
- Temporal-spatial oversampling system and its performance analysis in point target detection
- 光学精密工程 2014年22卷第9期页码：2498-2507
- 作者机构：
  
  1. 中国科学院大学北京,中国,100049
  2. 中国科学院上海技术物理研究所上海,200083
  3. 中国科学院红外探测与成像技术重点试验室上海,200083
- 作者简介：
- 基金信息：
  
  中国科学院知识创新工程资助项目（No.O9KBD013G0）()
- DOI：10.3788/OPE.20142209.2498
  中图分类号： TN216;TP391.4
- 收稿日期：2013-10-09，
  
  修回日期：2013-12-01，
  
  纸质出版日期：2014
- 稿件说明：
移动端阅览
董玉翠, 陈凡胜, 苏晓锋等. 时空过采样系统及其在点目标检测中的性能仿真[J]. 光学精密工程, 2014,22(9): 2498-2507

DONG Yu-cui, CHEN Fan-sheng, SU Xiao-feng etc. Temporal-spatial oversampling system and its performance analysis in point target detection[J]. Editorial Office of Optics and Precision Engineering, 2014,22(9): 2498-2507
董玉翠, 陈凡胜, 苏晓锋等. 时空过采样系统及其在点目标检测中的性能仿真[J]. 光学精密工程, 2014,22(9): 2498-2507 DOI： 10.3788/OPE.20142209.2498.

DONG Yu-cui, CHEN Fan-sheng, SU Xiao-feng etc. Temporal-spatial oversampling system and its performance analysis in point target detection[J]. Editorial Office of Optics and Precision Engineering, 2014,22(9): 2498-2507 DOI： 10.3788/OPE.20142209.2498.

摘要

从成像探测体制出发，对过采样扫描系统的光学系统、电子学系统等模块分别进行了数学建模，并对点目标和场景图像进行了仿真实验。仿真过程中提出了一种对有限图像大量分割代替连续图像的建模思想和方法，在matlab环境中对源点目标图像和场景以及探测器扫描积分过程进行仿真，并对过采样图像进行图像融合。仿真结果给出了不同过采样倍数以及点目标位于不同相位时的信噪比变化和信噪比随积分时间增长的变化曲线。仿真结果表明，过采样探测系统融合后的图像虽然能够增大点目标在图像上的尺寸，但融合后的图像会增大高频噪声，造成检测概率降低，虚警率增大。文章最后给出了利用小孔模拟点目标成像的实验，进一步证实了仿真结果的正确性，说明时空过采样系统并不适合用于点目标检测。

Abstract

This paper focuses on the mathematical modeling of an oversampling scanning optical system and an electronic system as well as the imaging simulation for point targets and scene images. It proposes new modeling idea and method to divide the finite images into large numbers of simulate analog images. By using this method

the processes of point target imaging

scene imaging and scanning and energy integral are simulated in matlab

and reconstructed images are obtained. The simulation experiment presents the trends of Signal to Noise Ratios(SNRs) with different oversampling times and the SNRs of point target located at different phases

as well as the trend of SNR with integration time increasing. The result shows that the reconstructed image increases the high frequency noise so that to reduces the detection probability and enlarges the false alarm

although it increases the size of the point target in the reconstructed image. At last

it gives the result of the point target imaging experiment based on pinholes

which verifies further the validity of the simulation results

and points out that the oversampling system is unfit for the point target detection.

关键词

Keywords

references

陈博洋. 提高静止轨道气象卫星可见光对地观测空间分辨率的研究[D]. 北京:中国科学院,2008. CHEN B Y. The Research of Improving the Resolving Power to Ground of the Scanner in the Geosynchronous Meteorological Satellite in Visible Light [D]. Beijing:Graduate University of the Chinese Academy of Sciences,2008.(in Chinese)

PETRIE G. The future detection of the spot programme [J].GEO Informatics,2001,4:12-17.

SCHMETZ J,PAOLOPILI, TJEMKESETC S.An Instroduction to meteosat second generation(MSG) [J]. American Meteorogical Society, 2002:977-992.

陈桂林,栾炳辉. FY-2C星多通道扫描辐射计及其在轨运行[J]. 上海航天,2005:21-27,71. CHEN G L,RUAN B H. Multichannel scanning radiometer of FY-2C meteorological satellite and its on-orbit operation [J].Aerospace Shanghai,2005:21-27,71.(in Chinese)

杨贵军,柳钦火,黄华国,等. 基于场景模型的热红外遥感成像模拟方法[J]. 红外与毫米波学报,2007,26(1):15-21. YANG G J, LIU Q H, HUANG H G, et al.. Methods for simulating infrared remote sensing images based on scene models [J].J. Infrared Millim. Waves,2007,26(1):15-21. (in Chinese)

郭明,王学伟. 空间目标/星空背景红外建模与仿真[J]. 红外与激光工程, 2010,39(3):399-404. GUO M, WANG X W. IR modeling and simulation of space target/star and space environment [J].Infrared and Laser Engineering, 2010,39(3):399-404.(in Chinese)

周世椿. 高级红外光电工程导论[M]. 中科院上海技术物理研究所教育中心, 2008,12. ZHOU SH CH. Introduction to Advanced Infrared Photoelectric Engineering [M].Shanghai: The CAS Shanghai Institute of Technical Physics Education Center, 2008,12.

ROBERT A. Schowengerdt. Remote Sensing:Models and Methods for Image Processing [M].US:Academic Press Inc, 2006.

董玉翠,苏晓锋,林剑春,等. 时空过采样探测系统性能仿真[J]. 强激光与粒子束, 2013,25(3):587-591. DONG Y C, SU X F, LIN J CH,et al.. Performance simulation of temporal-spatial oversampling system [J].High Power Laser and Particle beams, 2013,25(3):587-591.(in Chinese)

陈博洋,陈凡胜,陈桂林,等. 利用过采样探测提高线阵扫描相机的空间分辨率[J]. 红外技术,2009,31(7):395-398,402. CHEN B Y, CHEN F SH, CHEN G L, et al.. A new method of improving spatial resolution of linear matrix scanner by oversample[J].Infrared Technology,2009,31(7):395-398,402.

ROBERT D F. Image quality and λFN/p for remote sensing systems [J].Optical Engineering, 1999,7(38):1229-1240.

王世涛,张伟,金丽华,等. 基于时-空过采样的点目标检测性能分析[J]. 红外与毫米波学报, 2013,32(1):68-72. WANG SH T, ZHANG W, JIN L H, et al.. Point target detection based on temporal-spatial over-sampling system [J].J. Infrared Millim. Waves, 2013,32(1):68-72.

陈博洋,郭强,陈桂林,等. 超分辨率图像重建引起的噪声放大与滤波[J]. 红外与毫米波学报, 2011,30(1):15-20,60. CHEN B Y, GUO Q, CHEN G L, et al.. Amplificatory noise raised by super resolution image reconstruction and filter [J].J. Infrared Millim. Waves, 2011,30(1):15-20,6.

浏览量

285

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

晶圆定位标记光学成像的自适应聚焦评价

基于自由曲面光学元件的大视场光学成像系统

基于粒子群优化的宏观傅里叶叠层成像位置失配校准

极紫外正入射光学系统研究进展

基于动态视觉传感器的旋转检偏成像系统