Volume 8 Issue 4
Aug.  2019
Turn off MathJax
Article Contents
Article Navigation >  Journal of Radars  > 2019  >  8(4): 527-536
CHEN Shiyang, HUANG Lijia, and YU Lei. A novel sinc interpolation for continuous PRF sampled sequences reconstruction in spotlight SAR[J]. Journal of Radars, 2019, 8(4): 527–536. doi: 10.12000/JR18095
Citation: CHEN Shiyang, HUANG Lijia, and YU Lei. A novel sinc interpolation for continuous PRF sampled sequences reconstruction in spotlight SAR[J]. Journal of Radars, 2019, 8(4): 527–536. doi: 10.12000/JR18095
shu

A Novel sinc Interpolation for Continuous PRF Sampled Sequences Reconstruction in Spotlight SAR

doi: 10.12000/JR18095
  • ①.

    Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China

  • ②.

    Key Laboratory of Technology in Geo-Spatial Information Processing and Application System, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China

  • ③.

    School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

  • ④.

    School of Electronics and Information Engineering, Beihang University, Beijing 100191, China

Funds:  The National Science Foundation of China (61331017)
More Information
  • Corresponding author: HUANG Lijia, iecas8huanglijia@163.com
  • Received Date: 2018-11-14
  • Rev Recd Date: 2019-02-22
  • Publish Date: 2019-08-28
    Abstract
  • This paper focuses on an improved imaging-algorithm for the spotlight Synthetic Aperture Radar (spotlight SAR) with continuous Pulse Repetition Frequency (PRF) variation in extremely high-resolution imaging-process. PRI variation is conventionally employed to resolve the problem of fixed blind ranges as well as the conflict of high-resolution and wide-swath; however, there are problems such as spectrum aliasing and ambiguous targets caused by nonuniform sampling. In this study, a novel sinc interpolation method is proposed to reconstruct a uniformly sampled signal from non-uniform Fourier Transform samples. Then a two-step processing approach combined with the novel sinc interpolation method is presented in the process of non-uniformly sampled echo imaging. The simulation proves the validity and accuracy of the proposed imaging algorithm. In addition, the computational cost of the novel sinc interpolation is further reduced compared to that of non-uniform Fourier transformation.

     

    • FullText(HTML)
  • loading
    • References(16)
  • [1]
    丁赤飚, 刘佳音, 雷斌, 等. 高分三号SAR卫星系统级几何定位精度初探[J]. 雷达学报, 2017, 6(1): 11–16. doi: 10.12000/JR17024

    DING Chibiao, LIU Jiayin, LEI Bin, et al. Preliminary exploration of systematic geolocation accuracy of GF-3 SAR satellite system[J]. Journal of Radars, 2017, 6(1): 11–16. doi: 10.12000/JR17024
    [2]
    洪峻, 雷大力, 王宇, 等. 宽带宽方位波束对高分辨率SAR辐射定标的影响分析[J]. 雷达学报, 2015, 4(3): 276–286. doi: 10.12000/JR15015

    HONG Jun, LEI Dali, WANG Yu, et al. Wide band and wide azimuth beam effect on high-resolution synthetic aperture radar radiometric calibration[J]. Journal of Radars, 2015, 4(3): 276–286. doi: 10.12000/JR15015
    [3]
    聂鑫. 变波门大斜视滑动聚束SAR成像关键技术分析[J]. 电子与信息学报, 2016, 38(12): 3122–3128. doi: 10.11999/JEIT160812

    NIE Xin. Research on key technique of highly squinted sliding spotlight SAR imaging with varied receiving range bin[J]. Journal of Electronics &Information Technology, 2016, 38(12): 3122–3128. doi: 10.11999/JEIT160812
    [4]
    赵庆超, 张毅, 王宇, 等. 基于多帧超分辨率的方位向多通道星载SAR非均匀采样信号重建方法[J]. 雷达学报, 2017, 6(4): 408–419. doi: 10.12000/JR17035

    ZHAO Qingchao, ZHANG Yi, WANG R, et al. Signal reconstruction approach for multichannel SAR in azimuth based on multiframe super resolution[J]. Journal of Radars, 2017, 6(4): 408–419. doi: 10.12000/JR17035
    [5]
    赵耀, 邓云凯, 王宇, 等. 原始数据压缩对方位向多通道SAR系统影响研究[J]. 雷达学报, 2017, 6(4): 397–407. doi: 10.12000/JR17030

    ZHAO Yao, DENG Yunkai, WANG Yu, et al. Study of effect of raw data compression on azimuth multi-channel SAR system[J]. Journal of Radars, 2017, 6(4): 397–407. doi: 10.12000/JR17030
    [6]
    武其松, 井伟, 邢孟道, 等. MIMO-SAR大测绘带成像[J]. 电子与信息学报, 2009, 31(4): 772–775. doi: 10.3724/SP.J.1146.2007.01959

    WU Qisong, JING Wei, XING Mengdao, et al. Wide swath imaging with MIMO-SAR[J]. Journal of Electronics &Information Technology, 2009, 31(4): 772–775. doi: 10.3724/SP.J.1146.2007.01959
    [7]
    VILLANO M, KRIEGER G, and MOREIRA A. Staggered-SAR for high-resolution wide-swath imaging[C]. Proceedings of the IET International Conference on Radar Systems, Glasgow, UK, 2012: 1–6. doi: 10.1049/CP.2012.1600.
    [8]
    VILLANO M, JÄGER M, STEINBRECHER U, et al. Staggered SAR: Imaging a wide continuous swath by continuous PRI variation[C]. Proceedings of the Kleinheubacher Tagung, Miltenberg, Germany, 2014.
    [9]
    罗绣莲, 徐伟, 郭磊. 捷变PRF技术在斜视聚束SAR中的应用[J]. 雷达学报, 2015, 4(1): 70–77. doi: 10.12000/JR14149

    LUO Xiulian, XU Wei, and GUO Lei. The application of PRF variation to squint spotlight SAR[J]. Journal of Radars, 2015, 4(1): 70–77. doi: 10.12000/JR14149
    [10]
    唐江文, 邓云凯, 王宇, 等. 高分辨率滑动聚束SAR BP成像及其异构并行实现[J]. 雷达学报, 2017, 6(4): 368–375. doi: 10.12000/JR16053

    TANG Jiangwen, DENG Yunkai, WANG R, et al. High-resolution slide spotlight SAR imaging by BP algorithm and heterogeneous parallel implementation[J]. Journal of Radars, 2017, 6(4): 368–375. doi: 10.12000/JR16053
    [11]
    刘艳阳, 李真芳, 杨桃丽, 等. 一种单星方位多通道高分辨率宽测绘带SAR系统通道相位偏差时域估计新方法[J]. 电子与信息学报, 2012, 34(12): 2913–2919. doi: 10.3724/SP.J.1146.2012.00562

    LIU Yanyang, LI Zhenfang, YANG Taoli, et al. A novel channel phase bias estimation method for spaceborne along-track multi-channel HRWS SAR in time-domain[J]. Journal of Electronics &Information Technology, 2012, 34(12): 2913–2919. doi: 10.3724/SP.J.1146.2012.00562
    [12]
    刘艳阳, 李真芳, 索志勇, 等. 一种星载多通道高分辨率宽测绘带SAR系统通道相位偏差估计新方法[J]. 电子与信息学报, 2013, 35(8): 1862–1868. doi: 10.3724/SP.J.1146.2012.01424

    LIU Yanyang, LI Zhenfang, SUO Zhiyong, et al. A novel channel phase bias estimation method for spaceborne multi-channel high-resolution and wide-swath SAR[J]. Journal of Electronics &Information Technology, 2013, 35(8): 1862–1868. doi: 10.3724/SP.J.1146.2012.01424
    [13]
    王沛, 王翔宇, 李宁, 等. 超高分辨率机载SAR高精度子带拼接与处理方法研究[J]. 电子与信息学报, 2017, 39(10): 2325–2331. doi: 10.11999/JEIT170093

    WANG Pei, WANG Xiangyu, LI Ning, et al. Investigation on high precision sub-band synthesizing and processing method for very-high-resolution airborne SAR[J]. Journal of Electronics &Information Technology, 2017, 39(10): 2325–2331. doi: 10.11999/JEIT170093
    [14]
    吴玉峰, 孙光才, 杨军, 等. 周期性非均匀采样实现星载SAR高分辨宽测绘带成像[J]. 电子与信息学报, 2012, 34(2): 279–286. doi: 10.3724/SP.J.1146.2011.00498

    WU Yufeng, SUN Guangcai, YANG Jun, et al. High-resolution wide-swath imaging for spaceborne SAR based on periodic non-uniform sampling[J]. Journal of Electronics &Information Technology, 2012, 34(2): 279–286. doi: 10.3724/SP.J.1146.2011.00498
    [15]
    QIU Xue, LI Chunsheng, LI Jingwen, et al. A CZT-based continuous varying PRF polar format algorithm for highly squinted spotlight SAR[C]. Proceedings of 2015 IEEE International Geoscience and Remote Sensing Symposium, Milan, Italy, 2015: 4494–4497. doi: 1109/IGARSS.2015.7326826.
    [16]
    DUTT A and ROKHLIN V. Fast fourier transforms for nonequispaced data[J]. SIAM Journal on Scientific Computing, 1993, 14(6): 1368–1393. doi: 10.1137/0914081
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 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
    Get Citation
    PDF
    XML
    Article views(3276) PDF downloads(243) Cited by()
    Proportional views
    Related

    京ICP备20021838号-8   Supported by: Beijing Renhe Information Technology Co. Ltd     百度统计

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return