Fig. 1. Schematic diagram of lidar overlap factor

Fig. 2. Schematic diagram of overlap between laser beam and telescope field of view at transition area

Fig. 3. Schematic diagram of laser beam axis deviation

Fig. 4. Influence of structural parameters on overlap factor.(a) Influence of beam collimation coefficient on overlap factor; (b) influence of transceiver module radius ratio on overlap factor; (c) influence of transceiver module field ratio on overlap factor; (d) influence of transceiver module spacing radius ratio on overlap factor

Fig. 5. Intersection points of overlap factor curves with different St

Fig. 6. Fixed point fitting line of beam collimation coefficients with different R_r

Fig. 7. Influence of laser beam axis deviation angle on overlap factor.(a) Influence of transverse deviation angle;(b) influence of longitudinal deviation angle

Fig. 8. Influence of transverse deviation angle on fixed point of collimation coefficient. (a) Change of fixed point of collimation coefficient when θδ=0.1 mrad; (b) change of fixed point fitting line for collimation coefficients at different θδ

Fig. 9. Overlap factors and error obtained by model calculation and horizontal experiment method

Fig. 10. Profile inversion and correction analysis on June 19, 2013. (a) 20:32 azimuth angle 3°; (b) 20:33 azimuth angle 21°