期刊文献+

一种基于无插值PFA的重叠子孔径成像算法

An OSA Algorithm Based on the Interpolation-Free PFA
下载PDF
导出
摘要 以极坐标格式算法(PFA)产生子孔径图像为基础,研究重叠子孔径算法(OSA),通过补偿PFA中残留的二次相位误差,有效地扩大了高分辨率合成孔径雷达系统的图像聚焦范围,并通过引入无插值的PFA处理流程提高了计算效率。仿真和实测数据成像结果验证了该算法的有效性。 By using polar-format algorithm ( PFA) to generate subaperture images, me overlappeu subaperture algorithm (OSA) can effectively compensate the residue second-order phase error and enlarge the scene size of the foused image for a high-resolution synthetic aperutre radar system. Additionally, the signal processing steps of the interpolation-free PFA is also introduced to improve the computation efficiency. The point-targets simulation and live data processing results show the validity of the algorithm.
出处 《航空兵器》 2009年第5期50-54,共5页 Aero Weaponry
基金 教育部博士点基金(20070287053)
关键词 合成孔径雷达 成像算法 重叠子孔径算法(OSA) 相位误差补偿 synthetic aperture radar(SAR) image formation algorithm overlapped subaperture algorithm (OSA) phase error compensation
  • 相关文献

参考文献7

  • 1Cantalloube H,Dubois-Fernandez P.Airborne X-bandSAR Imaging with 10cm Resolution:Technical Challengeand Preliminary Results[].IEE ProcRadar SonarNavigation.2006
  • 2Doerry AW.Patch Diameter Limits for Tiered SubapertureSAR Image Formation Algorithm[].SPIE Pro-ceedings.1995
  • 3Doerry A W.Synthetic Aperture Radar Processing withPolar Formatted Subapertures[].Conference Re-cord of the th Asilomar Conference on Signals Systemsand Computers.1994
  • 4Mao Xin-hua,Zhu Dai-yin,Zhu Zhao-da.ATwo Dimen-sional Overlapped Subaperture Polar Format AlgorithmBased on Step-Chirp Signal[].Sensors.2008
  • 5Zhu Dai-yin,Zhu Zhao-da.Range Resampling in the Po-lar Format Algorithm for Spotlight SAR Image FormationUsing the Chirp[].IEEE Transactions on Signal Process-ing.2007
  • 6Carrara WG,Goodman RS,Majewski RM.Spotlight Synthetic Aperture Radar: Signal Processing Algorithms[]..1995
  • 7Doerry A W.Patch diameter limitations due to high chirp rates in focused synthetic aperture radar images[].IEEE Transactions on Aerospace and Electronic Systems.1994

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