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Channel Imbalance Calibration for Digital Beamforming SAR System in Elevation

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Communications, Signal Processing, and Systems (CSPS 2023)

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 1033))

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Abstract

Digital beam forming (DBF) synthetic aperture radar is an important technological approach for achieving high-resolution and wide-swath imaging. However, the unavoidable channel mismatch among received channels is a key issue. Channel imbalance deserves special attention in DBF system since the uncompensated channel errors may cause sidelobes rising, time-variant shift, a broadening of the impulse response, as well as the error of beam-steering direction. Thus, this letter addresses the impact of channel mismatching errors for digital beamforming (DBF) system in elevation and proposes a high accurate calibration method. Simulation experiment shows the effectiveness of the proposed method.

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Acknowledgements

Thanks for the editor and reviewers for reviewing this article. This work was supported in part by the National Science Fund under Grant 62201573 and in part by the Beijing Nova Program under Grant Z201100006820103.

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Authors and Affiliations

  1. Remote Sensing Satellite Institute, China Academy of Space Technology, Beijing, 100094, China

    Yashi Zhou, Xiaolei Han, Liang An, Jian Ma, Zheng Lv & Wentao Hou

Authors
  1. Yashi Zhou
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  2. Xiaolei Han
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  3. Liang An
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  4. Jian Ma
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  5. Zheng Lv
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  6. Wentao Hou
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Corresponding author

Correspondence to Yashi Zhou .

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Editors and Affiliations

  1. College of Electronic and Communication Engineering, Tianjin Normal University, Tianjin, China

    Wei Wang

  2. Inovative Parking Building, Room B410, Dalian University of Technology, Dalian, China

    Xin Liu

  3. Sci & Tech, DianHang Bldg, Rm 321, Dalian Maritime Univ, Sch of Info, Dalian, China

    Zhenyu Na

  4. College of Electronic and Communication Engineering, Tianjin Normal University, Tianjin, China

    Baoju Zhang

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© 2024 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Zhou, Y., Han, X., An, L., Ma, J., Lv, Z., Hou, W. (2024). Channel Imbalance Calibration for Digital Beamforming SAR System in Elevation. In: Wang, W., Liu, X., Na, Z., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2023. Lecture Notes in Electrical Engineering, vol 1033. Springer, Singapore. https://doi.org/10.1007/978-981-99-7502-0_11

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  • DOI: https://doi.org/10.1007/978-981-99-7502-0_11

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-99-7555-6

  • Online ISBN: 978-981-99-7502-0

  • eBook Packages: EngineeringEngineering (R0)

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