摘要
利用D-InSAR技术获取地表形变量,已经成为现在研究的热点。但是传统干涉SAR系统,只能反映所有散射体的平均高度,而无法反映某一特定散射中心的实际高度,从而导致对地形高度的估计存在偏差,针对此问题,文中综合运用干涉差分和极化干涉理论,提出将差分和极化干涉相结合来提高进行变形监测的精度。以兖州矿区全极化数据为例,极化干涉后用二轨差分获取矿区地表沉陷量,并与常规水准作比较验证了该理论的可行性。
Getting surface deformation quantity by D-InSAR has become a research hotspots now.But traditional InSAR system only reflects the average height of all the scattering and can not show the actual height of specific scattering centers leading to estimates deviation of terrain height,for this problem,the author proposes a theory based on difference and polarization interference in combination to improve the accuracy of the deformation monitoring,and takes the polarization data of Yanzhou mining area to verify.
出处
《矿山测量》
2011年第4期85-88,4,共4页
Mine Surveying
基金
国家自然科学基金(41071273)
