Initial Polarimetric Calibration Results of ALOS PALSAR

摘要：

This paper discusses the polarimetric calibration of Advanced Land Observing Satellite (ALOS) Phased Array L-band Synthetic Aperture (PALSAR). PALSAR is the first spaceborne L-band polarimetric synthetic aperture radar. Since the spaceborne SAR at low frequencies is affected by Faraday rotation effect which rotates the polarization plane of radar signal in the ionosphere, the scattering matrix which consists of the four polarimetric data (HH, HV, VH and VV) is distorted. Thus, in addition to the estimation of channel imbalance and cross-talk, to estimate Faraday rotation angle and to remove the contribution of Faraday rotation in the scattering matrix are an important problem in the polarimetric calibration of PALSAR. In this paper, we examine the polarimetric calibration of PALSAR. Freeman method is used to estimate the polarimetric calibration parameters including Faraday rotation angle.

作者: T. Moriyama M. Shimada M. Watanabe

作者单位: Earth Observation Research Center (EORC), Japan Aerospace and Exploration Agency Tokyo, Japan Earth Observation Research Center (EORC), Japan Aerospace and Exploration AgencyTokyo, Japan

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)

会议地点: 北京

会议语种:英文

页码: 55-59

在线出版日期: 2007-03-26（万方平台首次上网日期，不代表论文的发表时间）