SAR_IMAGES

作品数：93被引量：190H指数：6
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  • 期刊=Chinese Journal of Aeronauticsx
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Staring-imaging satellite pointing estimation based on sequential ISAR images
《Chinese Journal of Aeronautics》2024年第8期261-276,共16页Canyu WANG Libing JIANG Weijun ZHONG Xiaoyuan REN Zhuang WANG 
Pointing estimation for spacecraft using Inverse Synthetic Aperture Radar(ISAR)images plays a significant role in space situational awareness and surveillance.However,feature extraction and cross-range scaling of ISAR...
关键词：Staring-imaging Agile satellite Inverse Synthetic Aperture Radar(ISAR) Pointing estimation Cross-range scaling 
Density-based ship detection in SAR images:Extension to a self-similarity perspective
《Chinese Journal of Aeronautics》2024年第3期168-180,共13页Xueqian WANG Gang LI Zhizhuo JIANG Yu LIU You HE 
supported by National Key R&D Program of China(No.2021YFA0715201);in part by National Natural Science Foundation of China(Nos.61925106,62022092,and 62101303);in part by Autonomous Research Project of Department of Electronic Engineering at Tsinghua University。
Nonlocal self-similarity is an important property of Synthetic Aperture Radar(SAR)images to characterize the repetitiveness of features embodied by SAR images within nonlocal areas and has been used for enhancement of...
关键词：Ship detection Synthetic aperture radar(SAR) DENSITY SELF-SIMILARITY HISTOGRAM 
A novel visual attention method for target detection from SAR images被引量：5
《Chinese Journal of Aeronautics》2019年第8期1946-1958,共13页Fei GAO Aidong LIU Kai LIU Erfu YANG Amir HUSSAIN 
supported by the National Natural Science Foundation of China(Nos.61771027,61071139,61471019,61671035);supported in part under the Royal Society of Edinburgh-National Natural Science Foundation of China(RSE-NNSFC)Joint Project(2017–2019)(No.6161101383)with China University of Petroleum(Huadong);partially supported by the UK Engineering and Physical Sciences Research Council(EPSRC)(Nos.EP/I009310/1,EP/M026981/1)
Synthetic Aperture Radar(SAR) imaging systems have been widely used in civil and military fields due to their all-weather and all-day abilities and various other advantages. However, due to image data exponentially in...
关键词：Learning strategy SYNTHETIC APERTURE Radar(SAR) images Target detection TOP-DOWN Visual ATTENTION mechanism 
Matching suitable feature construction for SAR images based on evolutionary synthesis strategy
《Chinese Journal of Aeronautics》2013年第6期1488-1497,共10页Bu Yanlong Tang Geshi Liu Hongfu Pan Liang 
supported by National Natural Science Foundation of China (Grant No.41204026);Advanced Research Foundation (Grant No.9140A24060712KG13290);Open Fund of Key Laboratory of Science and Technology on Aerospace Flight Dynamics (Grant No.2012AFDL010)
In the paper,a set of algorithms to construct synthetic aperture radar（SAR）matching suitable features are frstly proposed based on the evolutionary synthesis strategy.During the process,on the one hand,the indexes o...
关键词：Integrated navigation Matching suitability Operation expression tree Primary matching suitable feature（PMSF） SAR image Synthesized matching suitable feature（SMSF 
A Novel Speckle Filter for SAR Images Based on Information-theoretic Heterogeneity Measurements被引量：3
《Chinese Journal of Aeronautics》2009年第5期528-534,共7页Chen Jie Zhu Jing Li Chunsheng Zhou Yinqing 
Foundation items： National Natural Science Foundation of China （60602045）; New Century Excellent Talents in University Foundation of MOE of China （NCET-06-0166）.Acknowledgment The authors wish to thank Prof. B. Aiazzi for his precious help. They are also grateful to the reviewers for their valuable advice.
Most adaptive speckle filters are based on the local coefficient of variation, which serves to measure the heterogeneity of synthetic aperture radar （SAR） images. However, the sensitivity of the measurements to spec...
关键词：synthetic aperture radar image processing speckle reduction information theory heterogeneity measurement 
SAR Images Despeckling Based on Bayesian Estimation and Fuzzy Shrinkage in Wavelet Domains被引量：3
《Chinese Journal of Aeronautics》2006年第4期326-333,共8页吴艳 王霞 廖桂生 
A Postdoctoral Science Foundation of China (J63104020156); National Defence Foundation of China
An efficient despeclding algorithm is proposed based on stationary wavelet transform （SWT） for synthetic aperture radar （SAR） images. The statistical model of wavelet coefficients is analyzed and its performance i...
关键词：SAR image despeclding fuzzy shrinkage factor MMSE region division. Bayesian estimation SWT 
Speckle Suppress for SAR Images Based on Pyramidal Morphology Algorithm
《Chinese Journal of Aeronautics》2003年第2期103-107,共5页张弓 朱兆达 朱宁仪 
the National Natural Science Foundation of Jiangsu Province.China.( No.BK2 0 0 10 47)
A Pyramidal Morphology Algorithm is developed for speckle reduction of SARimages in this paper. For reducing the loss of information in the pyramidal algorithm for morphologyprocessing, in this modified algorithm, the...
关键词：speckle reduction SAR mathematical morphology pyramidal algorithm IMAGEPROCESSING 
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