Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (2): 506-511.doi: 10.12305/j.issn.1001-506X.2022.02.19

• Sensors and Signal Processing • Previous Articles     Next Articles

Transformation bases measurements of polarization scattering matrix based on HRRP phase correction

Yang BAI1,2,*, Xin HOU1, Fang LIU1, Hongcheng YIN1   

  1. 1. Science and Technology on Electromagnetic Scattering Laboratory, Beijing Institute of Environment Features, Beijing 100854, China
    2. Information Engineering College, Communication University of China, Beijing 100024, China
  • Received:2021-01-13 Online:2022-02-18 Published:2022-02-24
  • Contact: Yang BAI

Abstract:

In measurement of the target polarization scattering matrix, the polarization transformation process requires the elements of the matrix to have a high degree of phase consistency, but it is difficult to achieve in the actual measurement, resulting in a large error in the measurement results of variable polarization basis. The generalization of the polarization matrix transformation process is deduced, branch phase asymmetric effect of the polarization test system on the technique of polarization transformation is analyzed. Combined with the feature of the broadband time-frequency transform algorithm, this paper proposes a scattering matrix elements phase correction method based on wideband high resolution, and through the actual measurement verification of standards bodies, good experimental results are obtained which are in compliance with the theoretical value.

Key words: polarization scattering matrix, polarization transformation, scattering measurement, one-dimensional high resolution

CLC Number: 

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