期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

基于最小二乘估计和小波去噪的ATI-SAR自适应相位校正方法 被引量：1

Phase Calibration Method for ATI-SAR System Based on Least Square Estimation and Wavelet-Denoising
下载PDF
导出
摘要 ATI-SAR系统要求两个通道的相位特性准确匹配。该文分析了ATI-SAR系统相位误差的来源,建立了ATI-SAR系统相位误差的数学模型。提出了一种基于最小二乘估计和小波去噪的ATI-SAR自适应相位校正方法,给出了该相位校正方法的处理流程。计算机仿真证明在没有平台速度、偏航角等先验知识的情况下该方法仍可有效补偿ATI-SAR系统的相位误差,而且相位缠绕时,不需进行相位解缠。 ATI-SAR system requires that the phase characteristic of the two channels is precisely matched. This paper analyzes the phase error of ATI-SAR system, gives the mathematic model, proposes a simple phase calibration method for ATI-SAR system based on Least Square Estimation （LSE） and wavelet-denoising and gives the calibration flow. The simulation results demonstrated that the phase error of ATI-SAR system is removed by this method. This method does require any knowledge of the platform velocity and actual crab angle. The problem of wrapped interferometric phases can be resolved by iterative of this method.
作者 张焕胜 祁海明 杨汝良
机构地区 中国科学院电子学研究所
出处 《电子与信息学报》 EI CSCD 北大核心 2007年第5期1073-1076,共4页 Journal of Electronics & Information Technology
关键词 合成孔径雷达 动目标指示 沿迹干涉 最小二乘估计 小波去噪 Synthetic Aperture Radar（SAR） Moving Target Indication（MTI） Along Track Interferometry（ATI） Least Square Estimation（LSE） Wavelet-denoising
分类号 TN957.52 [电子电信—信号与信息处理]
  • 相关文献

参考文献8

  • 1Raney R K.Synthetic aperture imaging radar and moving targets,IEEE Trans.on AES,1971,AES-7(3):499-505.
  • 2Entzminger J N Jr,Fowler C A,and Kenneally W J.JointSTARS and GMTI:past,present and future.IEEE Trans.on Aerospace and Electronic Systems,1999,35 (2):748-761.
  • 3Stockburger E F and Held D N.Interferometric moving-ground target imaging,IEEE International Radar Conference,Alexandria,VA,USA,1995:438-443.
  • 4Beaulne P D and Gierull H G.Preliminary design of a SAR-GMTI processing system for RADARSAT-2 MODEX data.IEEE IGARSS 2003,Toulouse,France,July 21-25,2003,Vol.2:1019-1021.
  • 5Mittermayer J and Hartmut R.Conceptual studies for exploiting the TerraSAR-X dual receive antenna.IEEE IGARSS 2003,Toulouse,France,July 21-25,2003,Vol.2:2140-2142.
  • 6Stimson G W.Airborne Radar,New Jersey:Scitech,1998:317-322.
  • 7Gierull H G.Digital channel balancing of along-track interferometric SAR data.Technical Memorandum DRDC Ottawa,Canada,2003.
  • 8Zhang Yu-hong and Consultants S.A dual-threshold ATI-SAR approach for detecting slow moving targets.IEEE 2005 International Radar Conference,Arlington,Virginia,USA,May 9-12,2005:295-299.

同被引文献12

  • 1Zhang Yu-hong. Along Track Interferometry Synthetic Aperture Radar (ATI-SAR) techniques for ground moving target detection. Air Force Research Laboratory, New York, January 2006.
  • 2Kapfer R and Davis M E. Along track interferometry for foliage penetration moving target indication. Proceedings of IEEE 2008 Radar Conference, Rome, Italy, 2008: 321-326.
  • 3Chapin Elaine and Chen C W. Along-track interferometry for ground moving target indication. IEEE A&E Systems Magzine, Phonecix, AZ, USA, 2008, 23: 19-24.
  • 4Fischer J, Baumgartner S, and Reigber A, et al.. Geometric, radiometric, polarimetric and Mong-track interferometric calibration of the new F-SAR system of DLR in X-band. Proceedings of 7th European Conference on SAR, Friedrichshafen, Germany, 2008, 3: 109-112.
  • 5Wu Xin-wei and Zhang C. A new method of resolving velocity ambiguities in multi-channel interferometric SARGMTI. 2006 CIE International Conference on Radar, Shanghai, 2006 1-4.
  • 6Budillon A, Pascazio V, and Schirinzi G. Estimation of radial velocity of moving targets by along-track interferometric SAR systems. IEEE Geoscience and Remote Sensing Letters, 2008, 5(3): 349-353.
  • 7Gabele M and SIkaneta I. A new method to create a virtual third antenna from a two-channel SAR GMTI system. 2007 Waveform Diversity & Design, Pisa, Italy, 2007: 433-437.
  • 8Zhou Hong, Huang Xiao-tao, Chang Yu-lin, and Zhou Zhi-min. Single-channel UWB SAR ground moving targets detection method using change detection based on single-pass sub-aperture images. 2007 1st Asian and Pacific Conference on SAR, Huangshan, 2007: 266-270.
  • 9Andres C, Scheiber R, Bachmann M, Gonzalez J H, and Krieger G. Phase unwrapping for multiple interferograms: an airborne experiment for TanDEM-X. Proceedings of 7th European Conference on Synthetic Aperture Radar, Friedrichshafen, Germany, 2008, 3: 281-284.
  • 10Chen C W. Performance assessment of along-track interferometry for detecting ground moving targets, IEEE International Radar Conference 2004, Philadelphia, USA, 2004: 99-104.

引证文献1

二级引证文献4

电子与信息学报
2007年 第5期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部