An Azimuth Nonlinear Chirp Scaling Algorithm for High Squint FMCW SAR Imaging

被引：0
作者：
Li, Longchao [1 ]
Zhou, Jianxiong [1 ]
机构：
[1] NUDT, Sch Elect Sci, Natl Key Lab Sci & Technol ATR, Changsha, Peoples R China
来源：
2019 IEEE 4TH INTERNATIONAL CONFERENCE ON SIGNAL AND IMAGE PROCESSING (ICSIP 2019) | 2019年
关键词：
component; FMCW SAR; LRWC; ANLCS; high squint; imaging algorithm;
D O I：
10.1109/siprocess.2019.8868880
中图分类号：
TP31 [计算机软件];
学科分类号：
081202 ; 0835 ;
摘要：
With the FAICW SAR working at high squint, the coupling between the range and azimuth greatly increases. A linear range walk correction(LRWC) is adopt to reduce the range-azimuth coupling and to remove the linear component of target range cell migration. After the LRWC, we can use the side-looking method for the squint SAR. Then the azimuth nonlinear chirp scaling(ANLCS) is applied to equalize the azimuth frequency modulation rate for azimuth compression in azimuth processing. In this paper, we compare and analyze range processing and the ANLCS with different accuracy in our scenes. And the simulation experiments of different processing provide a basis for choosing a better imaging algorithm for our requirement.
引用
收藏
页码：213 / 218
页数：6
相关论文
共 44 条
  • [1] Imaging algorithm of high squint spotlight SAR based on azimuth deramp and nonlinear frequency scaling(NFS)
    Wu Y.
    Song H.-J.
    Peng J.
    Liu H.-Y.
    Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology, 2010, 32 (09): : 2184 - 2190
  • [2] A Decoupled Chirp Scaling Algorithm for High-Squint SAR Data Imaging
    Guo, Yanan
    Wang, Pengbo
    Zhou, Xinkai
    He, Tao
    Chen, Jie
    IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2023, 61
  • [3] APPLICATIONS OF BASEBAND AZIMUTH SCALING ON HIGH SQUINT BEAM STEERING SAR IMAGING WITH CONTANT ACCELERATION
    Bie, Bowen
    Sun, Guang-Cai
    Xing, Mengdao
    2019 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2019), 2019, : 2567 - 2570
  • [4] Study on the High Squint Imaging Method for FMCW SAR with High Speed
    Liang, Ying
    Li, Zhi-an
    Huo, Wen-jun
    Sun, Li
    Li, Xiao-hui
    2014 IEEE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, COMMUNICATIONS AND COMPUTING (ICSPCC), 2014, : 753 - 756
  • [5] High squint imaging method for missile-borne FMCW SAR
    Liang, Ying, 1600, Chinese Research Institute of Radiowave Propagation (29): : 1115 - 1121
  • [6] A quadtree algorithm for high squint SAR imaging
    Xu Sanyuan
    Wang Hanguo
    IGARSS: 2007 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS 1-12: SENSING AND UNDERSTANDING OUR PLANET, 2007, : 854 - 857
  • [7] A New Approach of Extended Chirp Scaling Algorithm for High Squint Missile-borne SAR Data Processing
    Zhou Qiang
    Qu Chang-Wen
    Su Feng
    Wang Ying
    ISCSCT 2008: INTERNATIONAL SYMPOSIUM ON COMPUTER SCIENCE AND COMPUTATIONAL TECHNOLOGY, VOL 2, PROCEEDINGS, 2008, : 133 - 136
  • [8] Tandem bistatic squint SAR imaging algorithm based on the Chirp-Z transform
    Wu Y.-J.
    Wu X.-L.
    Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology, 2010, 32 (02): : 383 - 387
  • [9] Modified Omega-K algorithm for sub-aperture high squint SAR imaging based on azimuth resampling
    Huai, Yuan-Yuan
    Liang, Yi
    Li, Zhen-Yu
    Xing, Meng-Dao
    Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology, 2015, 37 (07): : 1743 - 1750
  • [10] A new subaperture chirp scaling imaging algorithm for spaceborne spotlight SAR
    Sun Jinping
    Yang Zhifeng
    Hong Wen
    Mao Shiyi
    SECOND INTERNATIONAL CONFERENCE ON SPACE INFORMATION TECHNOLOGY, PTS 1-3, 2007, 6795
12345