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运动目标在阵列孔径UWBSAR图像上的表征及其在图像域GMTI方法中的应用 被引量：1

The Representation of Moving Targets in Multi-channel UWB SAR Images and It's Application in Image Domain GMTI Methods
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摘要 结合子孔径BP成像过程,对运动目标在阵列孔径UWB SAR图像上的成像规律进行了研究,得出了运动目标在阵列孔径UWB SAR图像上的解析表达式,据此可将只适合慢速运动目标的UWB SAR图像域GMTI算法推广,使之适合快速运动目标。以ATI算法为例,说明了所得运动目标成像规律在UWB SAR图像域GMTI方法推广中的应用价值。基于仿真实验的结果证明了所得结论的正确性。 In this paper we study the representation of moving targets in multi-channel UWB SAR images. Based on both the LBP SAR imaging algorithm, we give the analytic expressions for the moving target in the multi-channel UWB SAR images. Following the results, the multi-channel image domain GMTI methods can be generalized to suitable for fast moving targets that defocus in multi-channel UWB SAR images, which is demonstrated by generalization the ATI method to suitable for fast moving targets. The conclusions have been proved to be correct via emulated data.
作者 常玉林 黄晓涛 周红 周智敏
机构地区 国防科学技术大学电子科学与工程学院超宽带室
出处 《宇航学报》 EI CAS CSCD 北大核心 2009年第3期1146-1153,共8页 Journal of Astronautics
基金 装备预先研究项目
关键词 UWB SAR 运动目标成像 图像域GMTI方法 UWB SAR Moving target imaging Image domain GMTI
分类号 TN957.5 [电子电信—信号与信息处理]
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参考文献7

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同被引文献11

  • 1Raney R K.Synthetic aperture imaging radar and movingtargets[J].IEEE Transcations on Aerospace ElectronicSystem,1971,7(5):499-505.
  • 2Chen H C and Mcgillm C D.Target motion compensation byspectrum shifting in synthetic aperture radar[J].IEEETranscations on Aerospace Electronic System,1992,28(3):895-901.
  • 3Dias J and Marques P.Multiple moving target detection andtrajectory parameters estimation using a single SAR sensor[J].IEEE Transcations on Aerospace Electronic System,2003,39(2):604-624.
  • 4Sj gren T K,Vu V T,and Pettersson M I.Moving targetdetection by focusing for frequency domain algorithms inUWB low frequency SAR[C].IGARSS 2008,Boston,MA,USA,July 7-11,2008:I-161-I-164.
  • 5Vu V T,Sj gren T K,Pettersson M I,et al..Detection ofmoving targets by focusing in UWB SAR-theory andexperimental results[J].IEEE Transcations on GeoscienceRemote Senssing,2010,48(10):3799-3815.
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  • 7Chapman R D,Hawes C M,and Nord M E.Target motionambiguities in single-aperture synthetic aperture radar[J].IEEE Transcations on Aerospace Electronic System,2010,46(1):459-468.
  • 8孙吉祥,等.现代模式识别[M].长沙:国防科技大学出版社,2001:13-43.
  • 9周红,黄晓涛,常玉林,周智敏.基于三通道UWB SAR子孔径图像序列的ATI方法[J].电子学报,2009,37(5):930-936. 被引量：2
  • 10蔚婧,廖桂生.一种多通道运动目标重聚焦及运动参数估计方法[J].西安电子科技大学学报,2009,36(4):624-628. 被引量：4

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宇航学报
2009年 第3期

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