A new polarimetric active radar calibrator and calibration technique

Jianguo Tang; Xiaojian Xu

doi:10.1117/12.2194478

15 October 2015 A new polarimetric active radar calibrator and calibration technique

Jianguo Tang, Xiaojian Xu

Proceedings Volume 9643, Image and Signal Processing for Remote Sensing XXI; 96431U (2015) https://doi.org/10.1117/12.2194478
Event: SPIE Remote Sensing, 2015, Toulouse, France

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.

Citation Download Citation

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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