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- Abstract: In this paper, a new method of speckle reduction in polarimetric SAR image is proposed. 摘 要: 提出了一种新的极化SAR图像相干斑抑制的方法。
- The validity of the novel method is indicated by experimental results with fully polarimetric SAR data sets. 利用全极化SAR实测数据验证了该文方法的优良性能。
- Finally, the paper shows the polarimetric SAR three dimensional images from authentic data. 并利用真实的极化 SAR图像数据得到了极化三维成像结果。
- At present, polarimetric SAR interferometry has being a kind of new technology of measuring the terrain parameters. 摘要目前SAR极化干涉测量地形参数已经成为一种新兴的前沿技术。
- Then ,polarimetric whitening filter(PWF) method for speckle reduction in polarimetric SAR is stated . 全极化SAR图像的相干斑噪声不仅使图像质量下降,而且给SAR图像的描述和分类等工作带来困难,因此通常要对SAR图像进行相干斑抑制处理。
- A model for the decomposition of polarimetric SAR data is developed in this paper. 该文提出一种描述极化SAR散射机制的散射模型。
- In this paper, a new method of speckle reduction in polarimetric SAR image is proposed. 提出了一种新的极化SAR图像相干斑抑制的方法。
- This parameter can be employed for ship detection and bridge detection from a polarimetric SAR image. 该参数能在河流区域很好地进行舰船检测与桥梁检测。
- The effectiveness of this method is demonstrated using an L-band fully polarimetric SAR image of San Francisco, acquired by the NASA/JPL AIRSAR sensor. NASA/JPL实验室AIRSAR系统获取的L波段旧金山全极化SAR数据的实验结果验证了该文方法的有效性。
- Compare to specific polarize technology in the past , polarimetric SAR can offer more information in the object and environment . 全极化SAR比起以往特定极化的散射技术,全极化测量技术能提供更为丰富的目标和环境的各种信息。
- The experiment shows ICA algorithm can separate speckle from polarimetric SAR image effectively and improve the performance of the image. 同时独立分量分析算法实现比较简单,计算方便有效。
- Speckle reduction is the primary problem of SAR (Synthetic Aperture Radar) and polarimetric SAR imagery post-processing. 相干斑抑制是合成孔径雷达(SAR)图像和极化SAR图像后处理的首要问题。
- Therefore, most of the false alarms are eliminated.Finally, the performance of this new approach is validated by the X-band full polarimetric SAR data in Niigata area of Japan. 利用日本新泻地区的X波段全极化数据进行验证,表明该方法具有良好的检测性能。
- Besides the crosstalk and channel imbalance f of SAR system, calibration of the spaceborne Polarimetric SAR(PolSAR) also needs to consider the correction of Faraday rotation . 星载极化SAR定标时除了考虑雷达系统本身的交叉耦合 和通道不平衡 系统失真参数的校正外还需要考虑法拉第旋转角 的校正问题。
- Besides, some confusing concepts were clarified.All above laid a foundationfor the research of polarimetric SAR system and polarimetric informationprocessing. 本文澄清了一些容易混淆的概念,为研究多极化SAR系统与极化信息处理问题奠定了基础。
- In the process of designing a spaceborne polarimetric SAR system it is required to restrain the system ambiguity and improve the image quality effectively. 现有的多极化SAR系统极化时分工作方式虽然简单易行,但在高轨道星载条件下系统的距离模糊问题变得十分严重。
- In practice, the channels of a polarimetric SAR system are not always perfectly isolated and do not have identical properties, thus the measurements are contaminated. 摘要由于极化合成孔径雷达发射与接收端受通道幅相不平衡、天线串扰、电磁波传播特性和系统噪声等因素影响,造成遥感数据不能反映真实目标特性。
- This paper mainly deals with the optimal inteferometric coherence of the residual images in frequency domain in detection and location of moving target with polarimetric SAR. 该文研究极化SAR动目标检测及定位中的频域残差图像干涉相干性优化问题。
- Experiment is performed on a L-band NASA/JPL SIR-C polarimetric SAR image over Danshui town, Guangdong, P.R.China.Furthermore, the movements of the clustering centers are discussed. 以中国广东淡水附近的L波段NASA/JPL SIR-C全极化SAR图像作为实验数据进行了仿真试验,并进一步对聚类中心的迁移进行了讨论。
- A new feature selection algorithm is presented using SVM, and then it is integrated into the classification procedure of polarimetric SAR images to construct a novel SVM-based classification method. 该文提出一种新的利用SVM的特征选择算法,并将其融入到极化SAR图像分类过程中,构成一种新的基于SVM的分类方法。