External calibration of the PARSAX dual-channel FMCW polarimetric agile radar system

Author

Zhijian Li ; Ligthart, L.P. ; Peikang Huang ; Weining Lu ; van der Zwan, W.F. ; Krasnov, O.A. ; Yarovoy, Alexander ; Weiqiang Zhu

Author_Institution

Nanjing Electron. Equip. Inst., Nanjing, China

fYear

2012

fDate

Oct. 31 2012-Nov. 2 2012

Firstpage

158

Lastpage

161

Abstract

Calibration is an important aspect of polarimetric radar design. In order to determine the accurate backscattering matrix (BSM) of a target, accurate measurements of the relative amplitudes and phases of the returned signals scattered by the targets are needed. This paper formulates the polarization BSM of a polarimetric agile radar system explicitly. The paper focuses on the external calibration of the radar system using a rotatable dihedral corner reflector. Comparison between the measurement results and the theoretical values of the polarization BSM of the dihedral demonstrates the validity of our calibration approach.

Keywords

CW radar; FM radar; backscatter; calibration; radar polarimetry; PARSAX dual-channel FMCW polarimetric agile radar system; backscattering matrix; calibration approach; external calibration; polarimetric agile radar system; polarimetric radar design; polarization BSM; rotatable dihedral corner reflector; theoretical values; Antenna measurements; Calibration; Equations; Radar antennas; Radar measurements; Radar polarimetry;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference (EuRAD), 2012 9th European

Conference_Location

Amsterdam

Print_ISBN

978-1-4673-2471-7

Type

conf

Filename

6450667