Journal of Systems Engineering and Electronics ›› 2010, Vol. 21 ›› Issue (2): 211-218.doi: 10.3969/j.issn.1004-4132.2010.02.007

• DEFENCE ELECTRONICS TECHNOLOGY • Previous Articles     Next Articles

Calibration method of phase distortions for cross polarization channel of instantaneous polarization radar system

Huanyao Dai,Yuliang Chang,Dahai Dai,Yongzhen Li,and Xuesong Wang   

  1. School of Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,P.R.China
  • Online:2010-04-26 Published:2010-01-03
  • Contact: Huanyao Dai

Abstract:

A novel polarimetric calibration method for new target
property measurement radar system is presented.Its applica-
tion in the real radar system is also discussed.The analysis
indicates that instantaneous polarization radar(IPR)has inherent
cross-polarization measurement error.The proposed method can
effectively eliminate this error,and thus enhance the polarization
scattering matrix(PSM)measurement precision.The phase error
caused by digital receiver’s direct IF sampling and mixing of two
orthogonal polarization channels can be removed.Consequently,
the inherent error of target polarization scattering measurement of
the instantaneous polarization radar system is well revised.It has
good reference value for further ploarimetric calibration and high
practical application prospect.