Volume 6 Issue 4
Sep.  2017
Turn off MathJax
Article Contents
Article Navigation >  Journal of Radars  > 2017  >  6(4): 420-431
Zhu Xiaojing, Li Fei, Wang Robert, Wang Wei, Sun Xiang. Range Ambiguity Suppression Approach for Quad-pol SAR Systems Based on Modified Azimuth Phase Coding[J]. Journal of Radars, 2017, 6(4): 420-431. doi: 10.12000/JR17015
Citation: Zhu Xiaojing, Li Fei, Wang Robert, Wang Wei, Sun Xiang. Range Ambiguity Suppression Approach for Quad-pol SAR Systems Based on Modified Azimuth Phase Coding[J]. Journal of Radars, 2017, 6(4): 420-431. doi: 10.12000/JR17015
shu

Range Ambiguity Suppression Approach for Quad-pol SAR Systems Based on Modified Azimuth Phase Coding

DOI: 10.12000/JR17015
  • ①.

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

  • ②.

    University of Chinese Academy of Sciences, Beijing 100039, China

Funds:  The National Natural Science Foundation of China (61422113), The National Ten Thousand Talent Program-Young Top Notch Talent Program, The Hundred Talents Program of the Chinese Academy of Sciences, The TWIn-L SAR (TerrainWide-Swath Interferometry L-band SAR) Program
  • Received Date: 2017-02-14
  • Rev Recd Date: 2017-05-14
  • Publish Date: 2017-08-28
    Abstract
  • For conventional quadrature-polarimetric (quad-pol) Synthetic Aperture Radar (SAR) systems, as cross-polarized (cross-pol) channels are influenced by the strong co-polarized (co-pol) range ambiguous returns, the range ambiguity levels of cross-polchannels are markedly reduced, which severely restricts the unambiguous swaths. A novel transmission scheme called a hybrid-polarimetric (hybrid-pol) mode is introduced to enhance the range ambiguity levels of cross-pol channels. This scheme improves the performance of cross-pol channels with regards to range ambiguity but deteriorates that of co-pol channels. Therefore, to further enhance the range ambiguity levels of quad-pol SAR systems, the Modified Azimuth Phase Coding (MAPC) technique based on hybrid-pol SAR systems is proposed in this study. By taking advantage of the MAPC modulation/demodulation, the power of range ambiguities is transferred to the azimuth that is filtered by an optimized Wiener filter in the Doppler domain. The simulation results validate that the MAPC technique can markedly eliminate the range ambiguity of quad-pol SAR systems and extend the unambiguous swaths.

     

    • FullText(HTML)
  • loading
    • References(19)
  • [1]
    Raney R K, Freeman A, and Jordan R L. Improved range ambiguity performance in quad-pol SAR[J]. IEEE Transactions on Geoscience and Remote Sensing, 2012, 50(2): 349–356. DOI: 10.1109/TGRS.2011.2121075
    [2]
    杨汝良, 戴博伟, 李海英. 极化合成孔径雷达极化层次和系统工作方式[J]. 雷达学报, 2016, 5(2): 132–142

    Yang Ru-liang, Dai Bo-wei, and Li Hai-ying. Polarization hierarchy and system operating architecture for polarimetric Synthetic Aperture Radar[J]. Journal of Radars, 2016, 5(2): 132–142
    [3]
    Mittermayer J and Martínez J M. Analysis of range ambiguity suppression in SAR by up and down chirp modulation for point and distributed targets[C]. Proceedings of the 2003 IEEE International Geoscience and Remote Sensing Symposium, Toulouse, France, 2003, 6: 4077–4079.
    [4]
    Dall J and Kusk A. Azimuth phase coding for range ambiguity suppression in SAR[C]. Proceedings of the 2004 IEEE International Geoscience and Remote Sensing Symposium, Anchorage, AK, USA, 2004, 3: 1734–1737.
    [5]
    Bordoni F, Younis M, and Krieger G. Ambiguity suppression by azimuth phase coding in multichannel SAR systems[J]. IEEE Transactions on Geoscience and Remote Sensing, 2012, 50(2): 617–629. DOI: 10.1109/TGRS.2011.2161672
    [6]
    Yang Jun, Sun Guang-cai, Wu Yu-feng, et al.. Range ambiguity suppression by azimuth phase coding in multichannel SAR systems[C]. Proceedings of IET International Radar Conference 2013, Xi'an, China, 2013: 1–5.
    [7]
    Gebert N, Krieger G, and Moreira A. Digital beamforming on receive: Techniques and optimization strategies for high-resolution wide-swath SAR imaging[J]. IEEE Transactions on Aerospace and Electronic Systems, 2009, 45(2): 564–592. DOI: 10.1109/TAES.2009.5089542
    [8]
    Krieger G, Gebert N, and Moreira A. Multidimensional waveform encoding: A new digital beamforming technique for synthetic aperture radar remote sensing[J]. IEEE Transactions on Geoscience and Remote Sensing, 2008, 46(1): 31–46. DOI: 10.1109/TGRS.2007.905974
    [9]
    Huber S, Younis M, Patyuchenko A, et al.. Digital beam forming techniques for spaceborne reflector SAR systems[C]. Proceedings of the 2010 8th European Conference on Synthetic Aperture Radar (EUSAR), Aachen, Germany, 2010: 1–4.
    [10]
    Di Martino G, Iodice A, Riccio D, et al. Filtering of azimuth ambiguity in stripmap synthetic aperture radar images[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2014, 7(9): 3967–3978. DOI: 10.1109/JSTARS.2014.2320155
    [11]
    Guarnieri A M. Adaptive removal of azimuth ambiguities in SAR images[J]. IEEE Transactions on Geoscience and Remote Sensing, 2005, 43(3): 625–633. DOI: 10.1109/TGRS.2004.842476
    [12]
    洪文, 杨士林, 李洋, 等. 分布式目标的极化SAR距离模糊计算方法研究[J]. 电子与信息学报, 2015, 37(6): 1437–1442 doi: 10.11999/JEIT141234

    Hong Wen, Yang Shi-lin, Li Yang, et al. Study on polarimetric SAR range ambiguity computation for distributed targets[J]. Journal of Electronics&Information Technology, 2015, 37(6): 1437–1442. DOI: 10.11999/JEIT141234
    [13]
    Li P K and Johnson W T K. Ambiguities in spacebornene synthetic aperture radar systems[J]. IEEE Transactions on Aerospace and Electronic Systems, 1983, AES-19(3): 389–397. DOI: 10.1109/TAES.1983.309319
    [14]
    Callaghan G D and Longstaff I D. Wide-swath space-borne SAR and range ambiguity[C]. Proceedings of Radar 97 (Conf. Publ. No. 449), Edinburgh, UK, 1997: 248–252.
    [15]
    Cordey R. Range ambiguities for a polarimetric spaceborne SAR[C]. Proceedings of IEEE International Geoscience and Remote Sensing Symposium, Houston, TX, USA, 1992: 637–639.
    [16]
    Raney R K. Hybrid-polarity SAR architecture[J]. IEEE Transactions on Geoscience and Remote Sensing, 2007, 45(11): 3397–3404. DOI: 10.1109/TGRS.2007.895883
    [17]
    Raney R K, Spudis P D, Bussey B, et al. The lunar mini-RF radars: Hybrid polarimetric architecture and initial results[J]. Proceedings of the IEEE, 2011, 99(5): 808–823. DOI: 10.1109/JPROC.2010.2084970
    [18]
    Raney R K. A ‘free’ 3-dB cross-polarized SAR data[J]. IEEE Transactions on Geoscience and Remote Sensing, 1988, 26(5): 700–702. DOI: 10.1109/36.7698
    [19]
    郭磊, 王宇, 邓云凯, 等. 基于方位向相位编码技术的方位向多通道SAR距离模糊抑制方法[J]. 电子与信息学报, 2015, 37(3): 601–606 doi: 10.11999/JEIT140707

    Guo Lei, Wang Yu, Deng Yun-kai, et al. Range ambiguity suppression for multi-channel SAR system using azimuth phase coding technique[J]. Journal of Electronics&Information Technology, 2015, 37(3): 601–606. DOI: 10.11999/JEIT140707
    • 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(3211) PDF downloads(441) 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