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一種基于快速分解后向投影的條帶SAR成像新方法

李浩林,  張磊,  邢孟道,  保錚

李浩林, 張磊, 邢孟道, 保錚. 一種基于快速分解后向投影的條帶SAR成像新方法[J]. 電子與信息學(xué)報(bào), 2015, 37(8): 1808-1813. doi: 10.11999/JEIT141633
引用本文: 李浩林, 張磊, 邢孟道, 保錚. 一種基于快速分解后向投影的條帶SAR成像新方法[J]. 電子與信息學(xué)報(bào), 2015, 37(8): 1808-1813. doi: 10.11999/JEIT141633
Li Hao-lin, Zhang Lei, Xing Meng-dao, Bao Zheng. Innovative Strategy for Stripmap SAR Imaging Using Fast Factorized Back-projection[J]. Journal of Electronics & Information Technology, 2015, 37(8): 1808-1813. doi: 10.11999/JEIT141633
Citation: Li Hao-lin, Zhang Lei, Xing Meng-dao, Bao Zheng. Innovative Strategy for Stripmap SAR Imaging Using Fast Factorized Back-projection[J]. Journal of Electronics & Information Technology, 2015, 37(8): 1808-1813. doi: 10.11999/JEIT141633

一種基于快速分解后向投影的條帶SAR成像新方法

doi: 10.11999/JEIT141633 cstr: 32379.14.JEIT141633
基金項(xiàng)目: 

國(guó)家自然科學(xué)基金(61301280)

Innovative Strategy for Stripmap SAR Imaging Using Fast Factorized Back-projection

  • 摘要: 快速分解后向投影(Fast Factorized Back-Projection, FFBP)最初用于超寬帶SAR成像，并在聚束SAR信號(hào)處理領(lǐng)域取得了巨大的成功。然而，由于積分孔徑和角域升采樣的限制，F(xiàn)FBP算法難以直接用于條帶SAR處理。為了提高FFBP算法在條帶SAR處理的實(shí)用性，該文從積分孔徑和角域波數(shù)帶寬的角度出發(fā)，提出一種適用于條帶SAR處理的重疊圖像法。該方法極大地保留FFBP算法的運(yùn)算效率，有效地避免因角域升采樣帶來(lái)數(shù)據(jù)量大的問(wèn)題。最后，通過(guò)斜視條帶SAR仿真實(shí)驗(yàn)驗(yàn)證了該方法的有效性。
    Abstract: Fast Factorized Back-Projection (FFBP) is originally developed for Ultra-WideBand (UWB) Synthetic Aperture Radar (SAR), and it shows great success for spotlight SAR signal processing. However, its implementation is not straightforward for stripmap SAR due to the limitation of integration aperture and angular upsampling. To investigate the applicability of FFBP to stripmap SAR, this paper describes a reasonable implementation of overlapped-image method based on integration aperture and angular wavenumber bandwidth. This approach retains high efficiency of the original FFBP. Finally, the simulated squinted SAR data are utilized to verify the effectiveness of the proposed method.
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出版歷程
  • 收稿日期:  2014-12-25
  • 修回日期:  2015-03-23
  • 刊出日期:  2015-08-19

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