Volume 40 Issue 11
Nov.  2015
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WENG Yinkan, LI Song, YANG Jinling, YI Hong, WANG Hong, MA Yue. Fast Solution to the RCS of Corner Reflector for the SAR Radiometric Calibration[J]. Geomatics and Information Science of Wuhan University, 2015, 40(11): 1551-1556. DOI: 10.13203/j.whugis20130613
Citation: WENG Yinkan, LI Song, YANG Jinling, YI Hong, WANG Hong, MA Yue. Fast Solution to the RCS of Corner Reflector for the SAR Radiometric Calibration[J]. Geomatics and Information Science of Wuhan University, 2015, 40(11): 1551-1556. DOI: 10.13203/j.whugis20130613
shu

Fast Solution to the RCS of Corner Reflector for the SAR Radiometric Calibration

  • 1.

    Electronic Information School, Wuhan University, Wuhan 430072, China;

  • 2.

    School of Science, Kunming University of Science and Technology, Kunming 650500, China;

  • 3.

    College of Geomatics, Shandong University of Science and Technology, Qingdao 266590, China

Funds: The Research Project in Advance of Civil Space in National 12th Five-year;the National Natural Science Foundation of China, No. 40901165;the Fundamental Research Fundation for the Central Universities, No. 274470;the Special Public Welfare Project for National Administration of Surveying, Mapping and Geoinformation, Application Index Demonstration and Key Technology of Subsequent Optical Satellite for Surveying and Mapping, No. 201412007.
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  • Received Date: March 29, 2014
  • Published Date: November 04, 2015
    Graphical Abstract
    • Abstract
  • Fast and accurate solution of a corner reflector's radar cross section is the important foundation of synthetic aperture radar radiometric calibration. Since a corner reflector used in radiometric calibration is usually electrically large, its backscatter field is appropriately analyzed with a high frequency approximation method;a fast and accurate solution is proposed in this paper. The incident field and its corresponding illuminated area are determined by a ray tracing of a incident wave and reflected wave, then the backscatter field of each illuminated area is computed by the Gordan surface integral method respectively and added up for the total RCS of a corner reflector. Simulation results agreed well with the results from the references and from the electromagnetic computing software FEKO. So the method proposed in this paper was demonstrated to be accurate and efficient, and especially suitable for fast radar cross section computation of corner reflectors composed of large size plates.
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    • References (17)
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