  Compared with two-dimensional imaging, three-dimensional imaging is much more
advantageous to catch the characteristic information of the target for remote
sensing. We report a range-resolving ghost imaging ladar system together with
the experimental demonstration of three-dimensional remote sensing with a large
field of view. The experiments show that, by measuring the correlation function
of intensity fluctuations between two light fields, a three-dimensional map at
about 1.0 km range with 25 cm resolution in lateral direction and 60 cm
resolution in axial direction has been achieved by time-resolved measurements
of the reflection signals.
