  Ghost imaging (GI) lidar, as a novel remote sensing technique,has been
receiving increasing interest in recent years. By combining pulse-compression
technique and coherent detection with GI, we propose a new lidar system called
pulse-compression GI lidar. Our analytical results, which are backed up by
numerical simulations, demonstrate that pulse-compression GI lidar can obtain
the target's spatial intensity distribution, range and moving velocity.
Compared with conventional pulsed GI lidar system, pulse-compression GI lidar,
without decreasing the range resolution, is easy to obtain high single pulse
energy with the use of a long pulse, and the mechanism of coherent detection
can eliminate the influence of the stray light, which can dramatically improve
the detection sensitivity and detection range.
