On the basis of the virtual photo coordinate of the left photo and the right photo, a new method called 2D direct location is put forward.
提出了一种基于虚拟左、右像片像空间坐标系的二维直接定位法,可快速提取工业测量系统两台经纬仪之间的相对定位元素并完成相对定位。
The theory of the direct georeferencing(DG) of ADS40 imagery supported by IMU/DGPS system is introduced.
阐述了IMU/DGPS辅助ADS40影像直接定位的基本方法,针对不同ADS40扫描条带采用不同的局部空间直角坐标系的现状,推导了航带间外方位元素的统一化处理算法。
The stability of macrocrack in engineering was analyzed based on LEFM(linear elastic fracture mechanics) model;and the crack tip′s stress intensity factor was calculated by displacement direct method.
基于线弹性断裂力学模型对工程中存在的宏观裂缝进行稳定性分析,采用位移直接法计算缝端应力强度因子。