助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   相干斑 在 武器工业与军事技术 分类中 的翻译结果: 查询用时:0.503秒
图标索引 在分类学科中查询
所有学科
武器工业与军事技术
电信技术
工业通用技术及设备
自动化技术
无线电电子学
计算机软件及计算机应用
航空航天科学与工程
更多类别查询

图标索引 历史查询
 

相干斑
相关语句
  speckle
    Speckle Reduction and Data Compression in SAR Images Using Wavelet-Based Method
    SAR相干斑抑制及图像压缩的小波域方法
短句来源
    Analysis of SAR Speckle Filtering with Different Wavelets
    不同小波基下的SAR图像相干斑抑制性能分析
短句来源
    The Method and Study of Reducing Speckle Noise in SAR Image
    抑制SAR图像相干斑噪声方法研究
短句来源
    Analysis and Statistics of the Speckle Characteristics in SAR Images
    单视SAR图像的相干斑特征分析与统计
短句来源
    Classification of SAR Images in the Presence of Speckle
    相干斑噪声背景下的SAR图像分类方法研究
短句来源
更多       
  “相干斑”译为未确定词的双语例句
    Research on SAR Image Despeckling and Optical Image Sequences Superresolution
    SAR图像相干斑抑制和光学图像序列超分辨率技术研究
短句来源
    New Method of Noise Attenuation in SAR Image
    一种新的SAR相干斑抑制方法
短句来源
    Different models are used to describe different type of regions in SAR images. These models include the homogeneous region model and the non-homogeneous region model, and the later consists of the strong scatterer model, the line-like region model and the weak edge region model.
    在SAR图像相干斑抑制方面,建立了一种针对相干斑抑制的SAR图像多描述模型,用不同模型描述SAR图像中不同类型区域,涉及到平稳区域模型和非平稳区域模型,非平稳区域模型又细分为强散射中心模型、线状区域模型和弱边缘区域模型等。
短句来源
    Study on Autofocus Technique and Speckle Reduction in SAR Image Formation
    SAR自聚焦技术及相干斑抑制算法研究
短句来源
    A SAR Speckle Reduction Algorithm Based on Region Division
    一种基于区域分集的SAR相干斑抑制算法
短句来源
更多       
查询“相干斑”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  speckle
We found a new structure named solicitation speckle at the low latitude of the animal pole and near the micropylar apparatus between the ovum envelope and cell membrane in the zygote of fish.
      
The solicitation speckle similar to type I cortical alveoli was very purple in H.E.
      
Moreover, no membrane around the solicitation speckle in TEM was found.
      
In SEM, the solicitation speckle looked flocculent.
      
During cortical reaction, the solicitation speckle played a very important function in arousing cortical reaction.
      
更多          


The coherent-imaging principle of Synthetic Aperture Radar causes speckle niose, which is the major problem of SAR images. According to the characteristics of SAN image details and speckle distribution, this peper puts forward a speckle-reduction algorithm based on region division. This algorithm can protect edge-characteristics of SAR image, along with a very good speckle reduction effort. Eperimental result shows that this algorithm is better than other existing speckle reduction methods.

合成孔径雷达(SAR)因为相干成像原理所固有的相干斑噪声是影响其图像质量的主要原因。文中根据SAR图像的纹理特征和相干斑噪声的统计特征,提出了一种基于区域分集的相干斑抑制算法。本算法能够完全保留SAR图像边缘特征,同时对相干斑具有较好的抑制能力。实验结果表明,本算法处理效果优于目前常用的相干斑滤波算法。

To reduce coherent speckle noise in synthetic aperture radar (SAR) imagery, multilook processing (MP) in azimuth frequency is usually applied. Weighting effect of real antenna pattern will improve the SNR in MP. A method is presented which normalizes the azimuth spectrum according to the antenna pattern before MP is applied. Harmful effect associated with the antenna pattern is removed. The processed results using ERS1 raw data show the validity of the proposed method.

为了抑制SAR图象中的相干斑噪声,改善图象信噪比,通常在横向频域上进行多视处理。实孔径天线方向图的加权效应会影响多视处理对信噪比的改善程度。本文提出一种方法,在多视处理前,先根据天线方向图对横向频谱作归一化处理,以消除上述影响。ERS-1原始数据的验证结果表明所提方法的有效性。

A method for estimating parameters of single-look generalized polarimetric K-distribution by using norrnalized joint polarimetric moments is presented. The characteristics of pattially correlated texture are analized and the algorithm of SAR texture parameters is given.The bias quality of every two polarized channels of SAR is also discussed. Finally, the Mont-calo simulation resu1ts show that the method has a good estimating quality.

提出了通过归一化极化联合矩对SAR(合成孔径雷达)单视广义极化K-分布纹理参数进行估计的方法,阐述了SAR各个极化通道之间的纹理相关性。在此基础上给出了单视广义极化K-分布波形因子、纹理相关系数和相干斑相关系数的算法及偏差性能分析,并进行了蒙特卡洛仿真实验论证,进一步证明了该方法的良好估计性能。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关相干斑的内容
在知识搜索中查有关相干斑的内容
在数字搜索中查有关相干斑的内容
在概念知识元中查有关相干斑的内容
在学术趋势中查有关相干斑的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社