At present,the image-free technology of UAV is often used in small-scale terrain survey.For the ultra-long distance belt terrain,the aerial triangulation solution is prone to large errors such as layering,bending and bifurcation,which leads to the unavailability of the solution results.In view of this problem,the author deeply analyzes the principle of aerial triangulation,and proposes a solution that can meet the map-ping accuracy of 1∶500,and verifies the feasibility of the solution through the project.Because there is no need to lay image control points,the solution greatly reduces the workload of traditional oblique photogramme-try fieldwork and greatly improves the work efficiency.
维普
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