Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Chinese Journal of Geophysics》 2010-12
Add to Favorite Get Latest Update

SAR/INSAR image processing based on modified spatially variant apodization

NI Chong~(1,2), WANG Yan-Fei~1 , XU Xiang-Hui~1 , ZHOU Chang-Yi~1, CUI Peng-Fei~(1,2)1 Institute of Electronics , Chinese Academy of Sciences , Beijing 100190, China 2 Graduate University of the Chinese Academy of Sciences , Beijing 100049, China  
The existing Spatially Variant Apodizations (SVAs) either cannot depress the sidelobes effectively or reduces the energy of the mainlobe. To improve this, the modified SVA (MSVA) of this paper, which expands the traditional filter from 3-tap to 5-tap and sets relevant parameters according to different sampling rates, can get the excellent result that satisfies constrained optimization theory. This method is suitable for any Nyquist sampling rate, and can both depress the sidelobes effectively and keep the energy of the mainlobe and the resolution of the image; at the same time, this method can improve the SNR of the image partly and enhance the coherence of image pair. The method can reduce sidelobe levels more effectively than classical amplitude weighting, while maintaining the image resolution, and improve the accuracy of the interferometric operation, which is demonstrated by the result of the experiment.
【Fund】: 中国科学院创新基金课题(053Z170138)资助
【CateGory Index】: P631
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【References】
Chinese Journal Full-text Database 1 Hits
1 Wang Yan-fei Liu Chang Zhan Xue-li Li He-ping(Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China);An Ultrafine Multifunctional Unmanned Aerial Vehicle SAR System[J];Journal of Electronics & Information Technology;2013-07
【Citations】
Chinese Journal Full-text Database 1 Hits
1 Zhang Xian-yi Su Wei-min Shi Ji Gu Hong (Research Center of Electronic Engineering Technology,Nanjing University of Sci.& Tech,Nanjing 210094,China);Application of Apodization Filtering Sidelobe Suppressin Technique to Synthetic Aperture Radar[J];Journal of Electronics & Information Technology;2008-04
【Co-citations】
Chinese Journal Full-text Database 6 Hits
1 Deng Yun-kai① Zheng Yuan①② Hu Ying-hui①② ①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) ②(Graduate School of Chinese Academy of Sciences, Beijing 100039, China);Sidelobe Suppression and Imaging of the Random FM Signal[J];Journal of Electronics & Information Technology;2009-08
2 YANG Ke LIAO Guisheng XU Qing WANG Weiwei(National Lab of Radar Signal Processing,Xidian University,Xi'an Shaanxi 710071,China);Improved SVA method for SAR sidelobe suppression[J];Chinese Journal of Radio Science;2012-06
3 Lei Chao,Hu Jinfeng,Liu Lidong,He Zishu(University of Electronic Science and Technology of China,Chengdu 611731);A Method for Designing Low Sidelobe Chaotic Radar Waveform[J];Fire Control Radar Technology;2010-04
4 NI Chong1,2,WANG YanFei1,XU XiangHui1,ZHOU ChangYi1 & CUI PengFei1,2 1 Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China;2 Graduate University of Chinese Academy of Sciences,Beijing 100039,China;A SAR sidelobe suppression algorithm based on modified spatially variant apodization[J];中国科学:技术科学(英文版);2010-09
5 NI Chong1,2,WANG YanFei1,XU XiangHui1,ZHOU ChangYi1 & CUI PengFei1,2 1 Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China;2 Graduate University of the Chinese Academy of Sciences,Beijing 100049,China;A super-resolution algorithm for synthetic aperture radar based on modified spatially variant apodization[J];中国科学:物理学 力学 天文学(英文版);2011-02
6 LEI Chao,HU Jin-feng,LIU Li-dong,HE Zi-shu(School of Electronic Engineering,University of Electronic Science & Technology of China,Chengdu 611731,China);Sidelobe suppression design method of radar waveform based on continuous chaotic system[J];Application Research of Computers;2011-02
【Co-references】
Chinese Journal Full-text Database 3 Hits
1 Wang Yan-fei Xu Xiang-hui Liu Chang Zhou Chang-yi (Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China);Airship SAR System for Precision Microwave Measurement of Ground Targets[J];Journal of Electronics & Information Technology;2010-01
2 Wang Xu-cun①② Zhou Yi-guo① ①(Institute of Electronics,Chinese Academy of Sciences,Beijing 100190,China) ②(Graduate University of the Chinese Academy of Sciences,Beijing 100190,China);Moment Method Analysis of Longitudinal Slot in a Rectangular Waveguide[J];Journal of Electronics & Information Technology;2011-11
3 WANG Zheng,ZHOU Yi-guo,GUO Jun-dong(Institute of Electronics,Chinese Academy of Sciences,Beijing 100080,China);Simulation and Design of Broadband Low Noise Amplifier Based on ADS[J];Modern Electronics Technique;2010-14
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved