快速搜索算法与极化合成孔径雷达三维成像

POLARIMETRIC SYNTHETIC APERTURE RADAR (SAR) THREE DIMENSIONAL IMAGING

从全极化(hh,hv,vh,vv)合成孔径雷达(SAR)图像数据中,可提取方位向的地势倾斜度信息,形成极化SAR三维成像。该文重点研究极化 SAR三维成像快速算法;提出由 Stokes矢量推导的的极化椭圆方向用解模糊算法;讨论目标极化散射特性对提取地势高度信息的影响以及处理方法;并利用真实的极化 SAR图像数据得到了极化三维成像结果。

Terrain slope information may be drawn from polarimetric synthetic aperture radar (SAR) two-dimensional image, so that three-dimensional image can be generated. The imaging algorithm discussed in the paper is a key technique to process polarimetric SAR image data to extract terrain slope. The solution fuzzy algorithm of the polarimetric ellipse rotation angle has been proffered and proved in the paper. The target scatter cross-section or signature-peak in the co-polarization signature generates effect to drawing true terrain slope information. Finally, the paper shows the polarimetric SAR three dimensional images from authentic data.