SAR Optimal Polarization Analysis based on Polarization Synthesis
The polarization feature of the target could be expressed by both the scattering matrix and the Stokes matrix.In the Back Scattering Alignment (BSA) system,scattering matrix meets the principle of reciprocity and every element of it is a complex number.Stokes matrix is a transformed format of scattering matrix and reflects the relationship between SAR received power and transceiver antenna polarization status.For a deterministic target,there is a one-to-one correspondence between the scattering matrix and the Stokes matrix.Since the Stokes matrix is always a real symmetric matrix and has the nature of normal matrix.It is usually used to save polarized scattering data.With the development of polarization technology,polarization synthesis has already become one of the most important tools for polarization data analysis.An optimal polarization status and the maximum reception power must exist through different parameters combinations.That means targets optimal polarization.Traditional targets optimal polarization theory was based on the scattering matrix.But the scattering matrix is usually obtained difficultly,so the calculating process always be much complex.In this paper,we deduce the formulae optimal receive power based on Stokes matrix and polarization synthesis.The algorithm could be carried out easily and the programming process is much directly.Some experiments proof that ideal results could received by proposed algorithm.
Target optimal polarization Polarization synthesis Stokes matrix Kennaugh’s optimal polarization Visible analysis Data statistic
Yanwen Li Yonghong Zhang Yingbao Yang
Chinese Academy of Survey and Mapping,16 Beitaiping Road,Haidian district,Beijing 100039,PR China;De Chinese Academy of Survey and Mapping,16 Beitaiping Road,Haidian district,Beijing 100039,PR China Department of Surveying and Mapping of Civil Engineering Institute,Hohai University
国际会议
第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)
广州
英文
2008-06-28（万方平台首次上网日期，不代表论文的发表时间）