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Target spinor calibration (TSC) for polarimetric radar cross-section measurements

Target spinor calibration (TSC) for polarimetric radar cross-section measurements

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A new polarimetric calibration method is proposed based on scattering matrix decomposition, via Pauli matrices. This scheme operates with the Pauli target vectors instead of the scattering matrix. The base elements of the Pauli target vectors are the vectors corresponding to the usual calibrators such as sphere, dihedral and 45° rotated dihedral. This fact allows direct and easy calculation of the error coefficients. An experimental validation of this method is presented.

Inspec keywords: matrix decomposition; radar polarimetry; radar cross-sections; S-matrix theory; vectors; radar theory; calibration

Other keywords: error coefficients; Pauli matrices; target spinor calibration; polarimetric radar cross-section measurements; scattering matrix decomposition; Pauli target vectors

Subjects: Radar theory; Algebra; Measurement standards and calibration

References

    1. 1)
      • W. Wiesbeck , D. Kähny . Single reference, three target calibration and error correction for monostatic,polarimetric free space measurements. Proc. IEEE , 1551 - 1558
    2. 2)
      • F.T. Ulaby , C. Elachi . (1990) Radar polarimetry for geoscience applications.
    3. 3)
      • Schnitt, K., Kähnay, D., Wiesbeck, W.: `Comparison of dual polarisation RCS-measurement facilities', Int. Conf. Electromagnetics in Aerospace Applications, September 1991, Torino, Italy, p. 327–330.
    4. 4)
      • Cloude, S.R.: `Polarimetry: The characterisation of Polarisation effects in Electromagneticscattering', October 1986, PhD, University of Birmingham.
    5. 5)
      • Broquetas, A., Fàbregas, X.: `A compact system for radar cross section measurement and imaging up to40 GHz', JINA, 1990, Nice, France, p. 596–599.
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