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Internal Calibration and Range Replica Extraction Scheme for Ultrahigh-Resolution Spaceborne SAR

  • Fan FengEmail author
  • Axin Jin
  • Jia Sun
  • Ruohan Hou
  • Hongxing Dang
Conference paper
  • 16 Downloads
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 657)

Abstract

In order to guarantee the image quality of ultrahigh-resolution spaceborne SAR, highly precise phase and amplitude responses of system are needed via calibration. Since this kind of SAR employs multiple subbands and be equipped with multiple transmit and receive channels to acquire the wider range bandwidth and antenna footprint, respectively, it becomes much more complex as compared with conventional SAR. In this paper, we propose a novel internal calibration and range replica extraction scheme to deal with this problem. The calibration loop, module, and workflow are provided. And effectiveness of this new scheme is verified by range compression results achieved with an experimental SAR system.

Keywords

Spaceborne SAR Multiple subbands Multiple channels Internal calibration Range replica 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Fan Feng
    • 1
    Email author
  • Axin Jin
    • 1
  • Jia Sun
    • 1
  • Ruohan Hou
    • 1
  • Hongxing Dang
    • 1
  1. 1.China Academy of Space Technology (Xi’an Branch)Xi’anChina

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