摘要
InSAR系统是根据两幅相干复影像的相位差进行高程测量的,相位精度是影响系统高程测量精度的主要因素之一。近几年随着DGPS/I MU技术的发展,其精度越来越高,已被广泛用于机载地理信息获取系统;同时,利用高精度的DGPS/I MU数据进行高分辨率的InSAR成像运动补偿也已受到重视。在分析了InSAR成像运动补偿对相位影响的基础上,研究了利用DGPS/I MU数据进行机载InSAR运动补偿的成像方法,并用实际数据成像,给出了运动补偿效果。
The system of InSAR is based on phase difference between two coherent complex image to survey height, the precision of phase is the one of main factors affecting systematic vertical measurement accuracy. In recent years, along with the development of DGPS/IMU technology, it has been used widely to the airborne system of geographic information acquisition because its accuracy is higher and higher.- High-resolution InSAR imaging motion compensation has also been received recognition using high-resolution DGPS/IMU data. On the base of analyzing the influence of InSAR imaging motion compensation on the phase, a imaging method for air-borne InSAR motion compensation using DGPS/IMU data was researched. The actual data were processed by the method, and the motion compensation effects were presented.
出处
《测绘科学技术学报》
北大核心
2010年第6期420-423,共4页
Journal of Geomatics Science and Technology
基金
国家自然科学基金资助项目(40871205)
