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15 October 2015 A new polarimetric active radar calibrator and calibration technique
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Abstract
Polarimetric active radar calibrator (PARC) is one of the most important calibrators with high radar cross section (RCS) for polarimetry measurement. In this paper, a new double-antenna polarimetric active radar calibrator (DPARC) is proposed, which consists of two rotatable antennas with wideband electromagnetic polarization filters (EMPF) to achieve lower cross-polarization for transmission and reception. With two antennas which are rotatable around the radar line of sight (LOS), the DPARC provides a variety of standard polarimetric scattering matrices (PSM) through the rotation combination of receiving and transmitting polarization, which are useful for polarimatric calibration in different applications. In addition, a technique based on Fourier analysis is proposed for calibration processing. Numerical simulation results are presented to demonstrate the superior performance of the proposed DPARC and processing technique.
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Jianguo Tang and Xiaojian Xu "A new polarimetric active radar calibrator and calibration technique", Proc. SPIE 9643, Image and Signal Processing for Remote Sensing XXI, 96431U (15 October 2015); https://doi.org/10.1117/12.2194478
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