极化SAR目标相对最优极化研究  

The Research on Optimization of Polarimetric Contrast Enhancement of Polarimetric SAR

作　　者：余海坤[1] 张永红[1] 汪云甲[2] 

机构地区：[1]中国测绘科学研究院,北京100039 [2]中国矿业大学环境与测绘学院,江苏徐州221008

出　　处：《海洋测绘》2006年第5期13-15,19,共4页Hydrographic Surveying and Charting

基　　金：国家973项目(2006CB701303)

摘　　要：目标相对最优极化就是选取一种极化状态,使得研究目标和背景地物的接收功率对比达到最大。通过讨论了目标相对最优极化问题,提出了改进的模型和解算方法,利用实际数据对其模型和方法进行了实验,验证了其有效性和正确性。Polarimetric SAR measures the amplitude and the phase of the scattering echo to get the complex scattering matrix or Stokes matrix of ground targets. The power with the antenna at any ellipse orientation and ellipticity angle can be calculated by using polarization synthesis. The aim of the optimization of polarization contrast enhancement（OPCE） is to find a specific configuration of transmission and reception antenna to get the best contrast between the target and the background. The paper mainly discusses the OPCE problem. An improved model and calculation method are derived. Test has been made and it proves the correctness and validity of the methods.

关 键 词：极化合成孔径雷达 目标相对最优极化 模型 

分 类 号：P228.5[天文地球—大地测量学与测量工程]