Research on the Measurement of Total Station without Centering and Leveling

Currently,the total station has been widely used in engineering surveying.But sometimes during the surveying by total station,it is the centering and leveling that can't be achieved,or the measurement can't be implemented after total station centered and leveled.As a special case,a new idea of total station measurement was proposed.It could convert the 3D observations,measured by the non-centered and non-leveled total station,to the known coordinate system,with the method of arbitrary angle rotation coordinate transformation.In addition,precision of the transformation was validated through the experimental data,which had proved that the method was feasible in the practical application.