强度关联激光成像雷达测量矩阵研究

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 高密度光存储技术实验室

	强度关联激光成像雷达测量矩阵研究
	崔丽君 ; 赵成强 ; 徐文东 ; 焦佳
刊名	中国激光
	2013
卷号	40 期号:9 页码:918002
其他题名	Study on the Measurement Matrix in Intensity Correlation Imaging Laser Radar
通讯作者	崔丽君, 中国科学院上海光学精密机械研究所高密度光存储技术实验室, 上海 201800, 中国. ; 赵成强, 中国科学院上海光学精密机械研究所高密度光存储技术实验室, 上海 201800, 中国. ; 徐文东, 中国科学院上海光学精密机械研究所高密度光存储技术实验室, 上海 201800, 中国. ; 焦佳, 中国科学院上海光学精密机械研究所高密度光存储技术实验室, 上海 201800, 中国.
中文摘要	采用基于稀疏限制的鬼成像技术(GISC)框架模拟研究了散斑场中散斑强度分布对成像质量的影响以及重建过程中所需要的采样次数与散斑尺寸和目标稀疏性的关系。数值模拟结果表明，光斑强度分布对成像分辨率影响较大，高斯散斑优于相同直径平顶散斑，且高斯分布散斑更适合于实际应用。当散斑尺寸小于图像的分辨率时，所需的采样次数只跟图像的稀疏度有关，而与图像的具体分布方式无关；当散斑尺寸超出目标自身的分辨率时，获得相同成像质量的图像(以较低分辨率图像为准)所需要的采样次数与散斑直径的平方成反比。模拟验证采样次数与目标稀疏性的关系，并给出和验证了具有灰度的自然目标图像的稀疏度计算公式。
英文摘要	Under the framework of ghost imaging via sparsity constraints (GISC), we do numerical simulations on the influence of the speckle intensity distribution on image quality and study the relationship between the sampling number needed for information reconstruction and the speckle size and the target sparsity. Numerical simulation results show that, the speckle intensity distribution affects the imaging resolution. Gauss distribution is better than flat-topped distribution with the same speckle size, and the Gauss distribution is more suitable for practical application. In addition, when the speckle size is smaller than the resolution of the image, the sampling number required is only related to the image sparse degree, and it has nothing to do with the specific distribution of the image. When the speckle size exceeds the target resolution, to obtain the same image quality (based on the image with lower resolution), the sampling number needs to be inversely proportional to the square of the speckle diameter. The relationship between sampling number and the target sparsity is simulated and verified, while we give and verify the calculation formula of the sparse degree of the natural target with gray.
收录类别	EI
语种	中文
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.siom.ac.cn/handle/181231/14904]
专题	上海光学精密机械研究所_高密度光存储技术实验室
作者单位	1.Cui Lijun, Research Laboratory for High Density Optical Storage，Shanghai Institute of Optics and Fine Mechanics， Chinese Academy of Sciences, Shanghai 201800, China. 2.Zhao Chengqiang, Research Laboratory for High Density Optical Storage，Shanghai Institute of Optics and Fine Mechanics， Chinese Academy of Sciences, Shanghai 201800, China. 3.Xu Wendong, Research Laboratory for High Density Optical Storage，Shanghai Institute of Optics and Fine Mechanics， Chinese Academy of Sciences, Shanghai 201800, China. 4.Jiao Jia, Research Laboratory for High Density Optical Storage，Shanghai Institute of Optics and Fine Mechanics， Chinese Academy of Sciences, Shanghai 201800, China.
推荐引用方式 GB/T 7714	崔丽君,赵成强,徐文东,等. 强度关联激光成像雷达测量矩阵研究[J]. 中国激光,2013,40(9):918002.
APA	崔丽君,赵成强,徐文东,&焦佳.(2013).强度关联激光成像雷达测量矩阵研究.中国激光,40(9),918002.
MLA	崔丽君,et al."强度关联激光成像雷达测量矩阵研究".中国激光 40.9(2013):918002.