Source-linked AI summary
Three-dimensional ghost imaging ladar
Wenlin Gong, Chengqiang Zhao, Jia Jiao, Enrong Li, Mingliang Chen, Hui Wang, Wendong Xu, Shensheng Han
TL;DR
Two-dimensional imaging can lose target range information, limiting remote sensing of characteristic target information. This paper proposes a range-resolving ghost-imaging ladar and demonstrates a three-dimensional map at about 1.0 km with 25 cm lateral and 60 cm axial resolution.
Problem
Two-dimensional imaging can produce mixed images that lose target range information in the axial direction, limiting three-dimensional remote sensing.
Method
The system measures intensity-fluctuation correlations between two light fields using time-resolved detection of target reflection signals.
Results
About 1.0 km range, 25 cm lateral resolution, and 60 cm axial resolution were achieved in a three-dimensional map.
Takeaways & Limitations
The experiments demonstrate high-resolution three-dimensional remote sensing with a large field of view at about 1.0 km range.
Abstract
from arXiv · showhide
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.