Figure 2. Experimental demonstration results of a tower at about 570 m range, using 6000 measurements.

(a) The averaged time-resolved signals reflected from the target. (b) The original target imaged by a telescope with the receiving aperture 140 mm and the focal length 477 mm. (c) The target’s 3D image obtained by 3D GISC lidar. (d) x-y projection of the 3D view in (c). (e–j) The 2D tomographic images of the target reconstructed by 3D GISC method, corresponding to the labeled time delays of Fig. 2(a). The different colors of the images shown in (c–j) express different detection distances between the objective lens and the target.