Advanced Search
Volume 38 Issue 12
Jan.  2017
Turn off MathJax
Article Contents
DONG Qi, YANG Zemin, LI Zhenyu, SUN Guangcai, XING Mengdao. Wavenumber-domain Imaging Algorithm for High Squint SAR Based on Azimuth Variation Range Model[J]. Journal of Electronics & Information Technology, 2016, 38(12): 3166-3173. doi: 10.11999/JEIT160785
Citation: DONG Qi, YANG Zemin, LI Zhenyu, SUN Guangcai, XING Mengdao. Wavenumber-domain Imaging Algorithm for High Squint SAR Based on Azimuth Variation Range Model[J]. Journal of Electronics & Information Technology, 2016, 38(12): 3166-3173. doi: 10.11999/JEIT160785

Wavenumber-domain Imaging Algorithm for High Squint SAR Based on Azimuth Variation Range Model

doi: 10.11999/JEIT160785
Funds:

The National Natural Science Foundation of China (61301292), The AeroSpace T.T. C. Innovation Program (201509A)

  • Received Date: 2016-07-22
  • Rev Recd Date: 2016-11-24
  • Publish Date: 2016-12-19
  • Due to the acceleration in the moving of the platform, the SAR imaging of highly squinted maneuvering platform becomes a problem to be solved urgently. The majority of currently existing range models fail in taking the azimuth-variation into consideration, so the well-focused images are not obtained. To solve these problems, a new azimuth-variation range model under the non-linear trajectory caused by acceleration is constructed. Based on this model, a wavenumber-domain imaging algorithm for high squint SAR is proposed, which takes advantage of the azimuth-variation filter to remove the azimuth chirp rate changes and Doppler center changes caused by the acceleration. By the analysis of the model error, the precision of the model is confirmed. Contrast simulation results are presented to valid the superiority of the proposed approach.
  • loading
  • ZHANG Lei, SHENG Jialian, XING Mengdao, et al. Wavenumber-domain autofocusing for highly squinted UAV SAR imagery[J]. IEEE Sensors Journal, 2012, 12(5): 1574-1588. doi: 10.1109/JSEN.2011.2175216.
    ZHANG Lei, QIAO Zhijun, XING Mengdao, et al. A robust motion compensation approach for UAV SAR imagery[J]. IEEE Transactions on Geoscience and Remote Sensing, 2012, 50(8): 3202-3218. doi: 10.1109/TGRS.2011.2180392.
    李震宇, 梁毅, 邢孟道, 等. 一种俯冲段子孔径SAR大斜视成像及几何校正方法[J]. 电子与信息学报, 2015, 37(8): 1814-1820. doi: 10.11999/JEIT141516.
    LI Zhenyu, LIANG Yi, XING Mengdao, et al. New subaperture imaging algorithm and geometric correction method for high squint diving SAR based on equivalent squint model[J]. Journal of Electronics Information Technology, 2015, 37(8): 1814-1820. doi: 10.11999/ JEIT141516.
    李震宇, 梁毅, 邢孟道, 等. 一种大斜视 SAR 俯冲段频域相位滤波成像算法[J]. 电子学报, 2015, 43(10): 2014-2021. doi: 10.3969/j.issn.0372-2112.2015.10.020.
    LI Zhenyu, LIANG Yi, XING Mengdao, et al. A frequency phase filtering imaging algorithm for high squint SAR in diving movement[J]. Acta Electronica Sinica, 2015, 43(10): 2014-2021. doi: 10.3969/j.issn.0372-2112.2015.10.020.
    XIAO Jing and HU Xuecheng. A modified RD algorithm for airborne high squint mode SAR imaging[C]. IEEE 1st Asian and Pacific Conference on Synthetic Aperture Radar, Huangshan, China, 2007: 444-448. doi: 10.1109/APSAR. 2007.4418646.
    周松, 周鹏, 李亚超, 等. 弹载SAR下降段成像算法研究[J]. 西安电子科技大学学报自然科学版, 2011, 38(3): 90-98. doi: 10.3969/j.issn.1001-2400.2011.03.015.
    ZHOU Song, ZHOU Peng, LI Yachao, et al. Research on the imaging algorithm for missile-borne SAR with downward movement[J]. Journal of Xidian University(Natural Science), 2011, 38(3): 90-98.
    CHEN Si, ZHANG Shuning, ZHAO Huichang, et al. A new Chirp scaling algorithm for highly squinted missile-borne SAR based on FrFT[J]. IEEE Journal of Selected Topics in Applied Earth Observations Remote Sensing, 2015, 8(8): 3977-3987. doi: 10.1109/JSTARS.2014.2360192.
    周鹏, 周松, 熊涛, 等. 基于级数反演的弹载 SAR 下降段CZT 成像算法[J]. 电子与信息学报, 2010, 32(12): 2861-2867. doi: 10.3724/SP.J.1146.2010.00452.
    ZHOU Peng, ZHOU Song, XIONG Tao, et al. A Chirp-Z imaging algorithm for missile-borne SAR with diving maneuver based on the method of series reversion[J]. Journal of Electronics Information Technology, 2010, 32(12): 2861-2867. doi: 10.3724/SP.J.1146.2010.00452.
    周松, 包敏, 周鹏, 等. 基于方位非线性变标的弹载 SAR 下降段成像算法[J]. 电子与信息学报, 2011, 33(6): 1420-1426. doi: 10.3724/SP.J.1146.2010.01124.
    ZHOU Song, BAO Min, ZHOU Peng, et al. Imaging algorithm for missile-borne SAR with downward movement based on azimuth nonlinear chirp scaling[J]. Journal of Electronics Information Technology, 2011, 33(6): 1420-1426. doi: 10.3724/SP.J.1146.2010.01124.
    LI Zhenyu and XING Mengdao. A frequency-domain imaging algorithm for highly squinted SAR mounted on maneuvering platforms with nonlinear trajectory[J]. IEEE Transactions on Geoscience and Remote Sensing, 2016, 54(7): 4023-4038. doi: 10.1109/TGRS.2016.2535391.
    DAVID C, MUNSON J R, JENKINS W K, et al. A tomographic formulation of spotlight mode synthetic aperture radar[J]. Proceedings of the IEEE, 1983, 72(8): 917-925. doi: 10.1109/PROC.1983.12698.
    YEGULALP A F. Fast back-projection algorithm for synthetic aperture radar[C]. The Record of the 1999 IEEE Radar Conference, Waltham, MA, USA, 1999: 60-65.
    ULANDER L M H, HELLSTEN H, and STENSTROM G. Synthetic-aperture radar processing using fast factorized back-projection[J]. IEEE Transactions on Aerospace and Electronic Systems, 2003, 39(3): 760-776. doi: 10.1109/TAES. 2003.1238734.
    REIGBER A, ALIVIZATOS E, POTSIS A, et al. Extended wavenumber-domain synthetic aperture radar focusing with integrated motion compensation[J]. IEE Proceedings-Radar, Sonar and Navigation, 2006, 153(3): 301310. doi: 10.1049/ ip-rsn:20045087.
    WU Yong, SONG Hongjun, SHANG Xiuqin, et al. Improved RMA based on nonuniform fast Fourier transforms[C]. 9th International Conference on Signal Processing, Beijing, China, 2008: 2489-2492. doi: 10.1109/ICOSP.2008.4697654.
    LI Zhe, WANG Jian, and LIU Qinghuo. Interpolation-free Stolt mapping for SAR imaging[J]. IEEE Geoscience and Remote Sensing Letters, 2014, 11(5): 926-930. doi: 10.1109/ LGRS.2013.2281847.
    LI Zhenyu, LIANG Yi, XING Mengdao, et al. An improved range model and omega-K-based imaging algorithm for high- squint SAR with curved trajectory and constant acceleration [J]. IEEE Geoscience and Remote Sensing Letters, 2016, 13(5): 656-660. doi: 10.1109/LGRS.2016.2533631.
    TANG Shiyang, ZHANG Linrang, GUO Ping, et al. Acceleration model analyses and imaging algorithm for highly squinted airborne spotlight-mode SAR with maneuvers[J]. IEEE Journal of Selected Topics in Applied Earth Observations Remote Sensing, 2015, 8(3): 1120-1131. doi: 10.1109/JSTARS.2015.2399103.
    TANG Shiyang, ZHANG Linrang, GUO Ping, et al. An omega-K algorithm for highly squinted missile-borne SAR with constant acceleration[J]. IEEE Geoscience and Remote Sensing Letters, 2014, 11(9): 1569-1573. doi: 10.1109/LGRS. 2014.2301718.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (1047) PDF downloads(279) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return