[1]王本庆,李兴国.近程毫米波被动扫描成像特性研究[J].南京理工大学学报(自然科学版),2009,(02):194-198.
 WANG Ben-qing,LI Xing-guo.Characteristics of Near Range Millimeter Wave Radiometer Passive Scanning Image[J].Journal of Nanjing University of Science and Technology,2009,(02):194-198.
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近程毫米波被动扫描成像特性研究
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2009年02期
页码:
194-198
栏目:
出版日期:
2009-04-30

文章信息/Info

Title:
Characteristics of Near Range Millimeter Wave Radiometer Passive Scanning Image
作者:
王本庆;李兴国;
南京理工大学电子工程与光电技术学院, 江苏南京210094
Author(s):
WANG Ben-qingLI Xing-guo
School of Electronic Engineering and Optoelectronic Technology,NUST,Nanjing 210094,China
关键词:
毫米波辐射计 近程被动成像 点扩散函数 图像恢复
Keywords:
millimeter wave radiometers near rang passive imaging point spread function image restoration
分类号:
TP391.41
摘要:
针对近程毫米波辐射计扫描成像分辨率低、图像模糊的问题,采用天线近程辐射特性融合极大似然估计方法对图像进行高分辨率恢复。首先分析了系统天线的近程辐射特性,它是影响成像质量的最主要因素。分析表明近程条件下天线辐射特性大大改变,增益减小,尺度变大,在此基础上估计了扫描体制下图像的点扩散函数,最后用极大似然估计方法对金属环的被动毫米波图像进行了高分辨率恢复。结果表明经过恢复的图像提高了分辨率和目标识别率。
Abstract:
In view of the low resolution and the blurred characteristic of the near range millimeter wave radiometer scanning image,a maximum likelihood approach is proposed to restore high resolution image using near range antena radiation characteristic.The antenna radiation characteristic under near range is analyzed,which is the primary factor to affect the image quality.The analysis result shows that the near range antenna radiation characteristic is significantly changed,the gain decreases and that the scale is larger.The point spread function of the scanning system is estimated.The passive millimeter wave image of a metal ring is restored using maximum likelihood method.The result shows that it improves the resolution and recognition rate.

参考文献/References:

[ 1] 李兴国. 毫米波近感技术及其应用[M ] . 北京: 国防工业出版社, 1991.
[ 2] 章勇. 被动毫米波成像技术的研究[ D] . 南京: 南京理工大学电子工程与光电技术学院, 1999.
[ 3] B ro thersM L, T imm s G P, Bun ton J D, et a.l A 190 GH z active m illim eter-wave im ag er[ J] . Proc o f SPIE, 2007, 6548: 654804, 1- 9.
[ 4] M artin C A, Lovberg J A, DeanW H, et a.l H igh reso lution passivem illim e terwave security screen ing using few am plifiers[ J]. Proc of SPIE, 2007, 6548: 654806, 1- 10.
[ 5] Sheen DM, McM ak in D L, H all T E. Speck le in activem illim eter-w ave and terahertz imag ing and spectro scopy[ J]. Proc of SPIE, 2007, 6548: 654809, 1- 10.
[ 6] Perg ande A. N ew steps fo r pass ive m illim eter Imag ing [ J]. Pro c o f SPIE, 2007, 6548: 654802, 1- 4.
[ 7] 泽尔E V. 口径天线与绕射理论[M ] . 邱文杰, 译. 成都: 电子科技大学出版社, 1987.
[ 8] H eH, Kond i L P. A super-reso lution techn ique w ith mo tion estim ation cons idering atm ospher ic turbulence [ J]. Proc o f SPIE, 2005, 5789: 135- 144.
[ 9] Se renelli R. Passive cy lindrica l scan by unphased d i-f frac tion- lim ited antennas fo r low-co st concea led w eapon de tection[ J]. Proc o f SPIE, 2005, 5789: 145- 156.
[ 10] Park H, K mi S H, SinghM K, et a.l Perfo rmace analysis of w ave let based restoration for passive m illmi eterwave mi ages[ J]. Proc of SPIE, 2005, 5789: 157- 166.
[ 11] PirogovY A, Gladun V V, T ischenko D A, et a .l Supe rreso lu tion in the passive rad iov ision system s of m i-l lim e ter-w ave range [ J]. Proc o f SPIE, 2004, 5410: 299- 308.
[ 12] Reeves S J. Ana ly sis o f the d ifficulties and poss ibil-i ties for superreso lution [ J]. Proc of SPIE, 1997, 3064: 239- 248.
[ 13] 邹谋炎. 反卷积和信号复原[M ]. 北京: 国防工业出版社, 2001.
[ 14] 袁建华. 超分辨率重建中若干问题的研究[ D]. 北京: 中国科学院电子学研究所, 2006.
[ 15] 曹聚亮. 图像超分辨率处理、成像及其相关技术研究[ D] . 合肥: 国防科学技术大学机电工程与自动化学院, 2004.
[ 16] 肖泽龙, 许建中, 彭树生, 等. 基于凸集投影算法的被动毫米波图像超分辨率恢复[ J] . 南京理工大学学报(自然科学版), 2007, 31( 3): 355- 358.
[ 17] Karanas iou I S, Uzunog lu N K, Sterg iopou los S, et a .l A passive 3D im ag ing thermog raph using m icrowave radiom etry[ J]. ITBM-RBM News, 2004, 3: 227- 239.

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备注/Memo

备注/Memo:
作者简介: 王本庆( 1981- ), 男, 博士生, 主要研究方向: 毫米波被动探测与成像技术, E-ma il: wangbenq@ tom. com; 通讯作者: 李兴国( 1940- ), 男, 教授, 博士生导师, 主要研究方向: 毫米波精确探测技术, E-mail :lx-guo2004@ 163. com。
更新日期/Last Update: 2012-11-19