2-D Spatial Variation Bistatic Forward-Looking SAR Imagery

被引：0
|
作者：
Lu, Jingyue [1 ]
Wang, Xuhua [1 ]
Ma, Yan [2 ]
Zhang, Lei [3 ]
Cao, Yunhe [4 ]
机构：
[1] Xidian Univ, Sch Comp Sci & Technol, Xian 710071, Peoples R China
[2] Beijing Inst Tracking Telemetry & Telecommun, Beijing 100076, Peoples R China
[3] Sun Yat Sen Univ, Sch Elect & Commun Engn, Guangzhou 510275, Peoples R China
[4] Xidian Univ, Natl Lab Radar Signal Proc, Xian 710071, Peoples R China
来源：
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS | 2022年 / 19卷
关键词：
Radar; Chirp; Transmitters; Imaging; Synthetic aperture radar; Receivers; Azimuth; 2-D spatial variation; bistatic forward-looking synthetic aperture radar (BFSAR); dechirping; keystone transform; subaperture;
D O I：
10.1109/LGRS.2022.3148191
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Under the special geometric model of bistatic forward-looking synthetic aperture radar (SAR), the 2-D spatial variation problem makes it difficult for traditional algorithms to achieve well-focused imaging, which limits the imaging area. In this letter, from the perspective of range-azimuth decoupling of signal, dechirping processing and keystone transform are used to realize range-variant phase compensation and range cell migrations (RCMs) correction. Based on the range-azimuth decoupled signal, the overlapped subaperture processing can eliminate the azimuth-variant quadratic chirp rate phase in each range cell. Experimental results demonstrate that the proposed method is suitable for the bistatic forward-looking SAR (BFSAR) system to solve the 2-D spatial variation problem and achieve well-focused imaging.
引用
收藏
页数：5
相关论文
共 50 条
  • [31] Bistatic Forward-Looking SAR Ground Moving Target Detection and Imaging
    Li, Zhongyu
    Wu, Junjie
    Yi, Qingying
    Huang, Yulin
    Yang, Jianyu
    Bao, Yi
    IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, 2015, 51 (02) : 1000 - 1016
  • [32] Imaging algorithm for bistatic forward-looking SAR based on Chebyshev polynomials
    Chen Q.
    Li X.-P.
    Zhu M.-B.
    Zou X.-H.
    Lu Z.-Y.
    Kongzhi yu Juece/Control and Decision, 2019, 34 (06): : 1241 - 1246
  • [33] Illumination Constraints for Forward-looking Radar Receivers in Bistatic SAR Geometries
    Balke, Jens
    Matthes, Dietmar
    Mathy, Torsten
    2008 EUROPEAN RADAR CONFERENCE, 2008, : 25 - 28
  • [34] Back-projection algorithm characteristic analysis in forward-looking bistatic SAR
    Zeng, DaZhi
    Hu, Cheng
    Zeng, Tao
    Long, Teng
    PROCEEDINGS OF 2006 CIE INTERNATIONAL CONFERENCE ON RADAR, VOLS 1 AND 2, 2006, : 147 - +
  • [35] Analysis on Missile-borne Bistatic Forward-looking SAR Imaging Perfomance
    Chen, Qi
    Li, Xiangping
    Zhu, Mingbo
    Zou, Xiaohai
    2017 INTERNATIONAL CONFERENCE ON MECHANICAL, MATERIAL AND AEROSPACE ENGINEERING (2MAE 2017), 2017, 114
  • [36] A residual range cell migration correction algorithm for bistatic forward-looking SAR
    Pu, Wei
    Huang, Yulin
    Wu, Junjie
    Yang, Jianyu
    Li, Wenchao
    EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING, 2016,
  • [37] Doppler and Cross-range Resolutions in Bistatic Forward-looking SAR Imaging
    Vu, Viet
    Pettersson, Mats
    2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON), 2015, : 72 - 76
  • [38] An Adaptive Iterative Scheme of Doppler Centroid Estimation for Bistatic Forward-Looking SAR
    Li, Wenchao
    Yang, Jianyu
    Wu, Junjie
    Huang, Yulin
    Kong, Lingjiang
    2010 IEEE RADAR CONFERENCE, 2010, : 262 - 265
  • [39] A Geometry-Based Doppler Centroid Estimator for Bistatic Forward-Looking SAR
    Li, Wenchao
    Yang, Jianyu
    Huang, Yulin
    Wu, Junjie
    IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2012, 9 (03) : 388 - 392
  • [40] A Geometry-Based Doppler Ambiguity Resolver for Bistatic Forward-Looking SAR
    Li, Wenchao
    Yang, Jianyu
    Huang, Yulin
    Wu, Junjie
    Kong, Lingjiang
    2010 IEEE RADAR CONFERENCE, 2010, : 339 - 342
12345