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Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
Published on: July 30, 2020
Research on Integrated Technologies for Space Target Imaging, Ranging, and Communication
Xiansong Gu1,2, Qiang Fu1,2, Zhuang Liu1,2
1National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun 130022, China.
Journal of Imaging
|July 27, 2026
Summary
This study presents an integrated laser system for space target detection, enhancing compactness and performance. Experiments confirm its capability for polarization imaging, dynamic ranging, and high-speed laser communication.
Area of Science:
- Optoelectronics
- Space Systems Engineering
- Optical Physics
Background:
- Space target detection demands higher system performance for integrated laser ranging, imaging, and communication.
- Existing systems face challenges in integration level and compactness.
Purpose of the Study:
- To propose and validate a novel light source integration scheme for a modularly designed integrated laser ranging, imaging, and communication system.
- To enhance system integration and compactness using fiber phased array beam splitting-coupling technology.
Main Methods:
- Developed an integrated system utilizing a Cassegrain optical system and beam splitting structure.
- Conducted ground experiments for functional feasibility assessment.
- Performed kilometer-level visible light polarization imaging and UAV-based dynamic ranging experiments.
- Executed a 1 km coherent free-space laser communication experiment.
Main Results:
- Polarization imaging improved target-background separability in haze and low-contrast conditions.
- Successful acquisition, tracking, and ranging of a moving cooperative target at meter-level accuracy.
- Achieved 20 Gbps QPSK signal transmission with a bit error rate of 10^-7 over 1 km.
Conclusions:
- The proposed integrated architecture effectively enhances system integration and compactness.
- Experimental results validate the system's feasibility for space target observation, debris monitoring, and long-distance sensing/communication.
