Expediting back-projection algorithm for circular SAR imaging

被引：4
|
作者：
Li, Haolin [1 ]
Zhang, Lei [1 ]
Xing, Mengdao [1 ]
Bao, Zheng [1 ]
机构：
[1] Xidian Univ, Natl Lab Radar Signal Proc, Xian 710071, Peoples R China
来源：
ELECTRONICS LETTERS | 2015年 / 51卷 / 10期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1049/el.2015.0348
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The availability of an expediting back-projection (EBP) algorithm for circular synthetic aperture radar (CSAR) imaging is investigated. EBP works by dividing the full aperture into sub-apertures, and using a unified polar grid to generate sub-images. On the basis of the correspondence between the wavenumber domain and the phase history domain, EBP combines all sub-aperture spectrums into a full-aperture one and reconstructs the CSAR image followed by a two-dimensional (2D) fast Fourier transform. Without time-consuming 2D interpolation, EBP is capable of decreasing the loss of spectrum, while improving significantly the computational efficiency compared with direct BP.
引用
收藏
页码：785 / 786
页数：2
相关论文
共 50 条
  • [1] A fast back-projection algorithm for bistatic SAR imaging
    Ding, Y
    Munson, DC
    [J]. 2002 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOL II, PROCEEDINGS, 2002, : 449 - 452
  • [2] AN N2.5 BACK-PROJECTION ALGORITHM FOR SAR IMAGING
    Shao, Yunfeng
    Wang, Robert
    Deng, Yunkai
    Liu, Yue
    Chen, Runpu
    Liu, Gang
    [J]. 2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS), 2012, : 2113 - 2116
  • [3] Analysis of the Azimuth Ambiguity and Imaging Area Restriction for Circular SAR Based on the Back-Projection Algorithm
    Du, Bang
    Qiu, Xiaolan
    Huang, Lijia
    Lei, Songlin
    Lei, Bin
    Ding, Chibiao
    [J]. SENSORS, 2019, 19 (22)
  • [4] Pencil Back-projection Method for SAR Imaging
    Ozsoy, Sahin
    Ergin, A. Arif
    [J]. 2008 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, VOLS 1-9, 2008, : 1288 - +
  • [5] Pencil Back-Projection Method for SAR Imaging
    Oezsoy, Sahin
    Ergin, A. Arif
    [J]. IEEE TRANSACTIONS ON IMAGE PROCESSING, 2009, 18 (03) : 573 - 581
  • [6] Back-Projection SAR Imaging Using FFT
    Gaibel, Ariel
    Boag, Amir
    [J]. 2016 13TH EUROPEAN RADAR CONFERENCE (EURAD), 2016, : 69 - 72
  • [7] A MODIFIED BACK-PROJECTION ALGORITHM FOR IMAGING GEO-REFERENCED SAR DATA
    Zhao, Songtao
    Chen, Jie
    Sun, Bing
    Yang, Wei
    Wang, Pengbo
    [J]. 2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS), 2015, : 4491 - 4493
  • [8] Simplified and approximation autofocus back-projection algorithm for SAR
    Guo, Zhenyu
    Zhang, Hongbo
    Ye, Shaohua
    [J]. JOURNAL OF ENGINEERING-JOE, 2019, 2019 (20): : 6408 - 6412
  • [9] Improved Back-Projection Algorithm on Small Time Bandwidth Product SAR Imaging
    Li, Han
    Suo, Zhiyong
    Zheng, Chengxin
    Li, Zhenfang
    Zhang, Qingjun
    [J]. IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2022, 19
  • [10] PROCESSING OF CIRCULAR SAR TRAJECTORIES WITH FAST FACTORIZED BACK-PROJECTION
    Ponce, Octavio
    Prats, Pau
    Rodriguez-Cassola, Marc
    Scheiber, Rolf
    Reigber, Andreas
    [J]. 2011 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS), 2011, : 3692 - 3695
12345