TY - GEN
T1 - Research on Synchronization Technology of Dynamic Environment Signals in the Laser Measurement and Control System
AU - Yang, Yifan
AU - Lin, Yujie
AU - Zhang, Yuting
AU - Hu, Chunyuan
AU - Zeng, Jie
N1 - Publisher Copyright:
© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2024.
PY - 2024
Y1 - 2024
N2 - With the development of deep space exploration technology, space laser communication technology has been paid more attention to, and communication and ranging are increasingly integrated. Pulse position modulation (PPM) is more suitable for deep space exploration in many ways. The key and difficulty of the performance of the laser measurement and control system lie in the high-precision synchronization algorithm of the signal. This paper mainly studies the PPM synchronization technology in the laser measurement and control system, which is expected to realize the accurate ranging with low synchronization accuracy under a high dynamic environment. We study the basic framework of laser measurement and control system and the ranging principle. The reason why PPM modulation is chosen to realize the synchronization algorithm is also analyzed. Then, we focus on the capture algorithm based on sliding correlation and the digital delay locking loop tracking algorithm, and design the phase discrimination frequency gain Kv to improve the sensitivity of the loop to first-order dynamics. Finally, the simulation results show that under the input condition of 16-ppm modulation mode, the time synchronization accuracy can meet the requirement of less than 100 ps in the dynamic range of 2000 m/s. Therefore, this technology is of great significance for the development of aerospace, deep space exploration and other fields in the future.
AB - With the development of deep space exploration technology, space laser communication technology has been paid more attention to, and communication and ranging are increasingly integrated. Pulse position modulation (PPM) is more suitable for deep space exploration in many ways. The key and difficulty of the performance of the laser measurement and control system lie in the high-precision synchronization algorithm of the signal. This paper mainly studies the PPM synchronization technology in the laser measurement and control system, which is expected to realize the accurate ranging with low synchronization accuracy under a high dynamic environment. We study the basic framework of laser measurement and control system and the ranging principle. The reason why PPM modulation is chosen to realize the synchronization algorithm is also analyzed. Then, we focus on the capture algorithm based on sliding correlation and the digital delay locking loop tracking algorithm, and design the phase discrimination frequency gain Kv to improve the sensitivity of the loop to first-order dynamics. Finally, the simulation results show that under the input condition of 16-ppm modulation mode, the time synchronization accuracy can meet the requirement of less than 100 ps in the dynamic range of 2000 m/s. Therefore, this technology is of great significance for the development of aerospace, deep space exploration and other fields in the future.
KW - Laser measurement and control system
KW - Laser ranging
KW - Pulse Position Modulation
KW - Signal synchronization
UR - http://www.scopus.com/inward/record.url?scp=85201975957&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-67162-3_17
DO - 10.1007/978-3-031-67162-3_17
M3 - Conference contribution
AN - SCOPUS:85201975957
SN - 9783031671616
T3 - Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
SP - 263
EP - 279
BT - Communications and Networking - 18th EAI International Conference, ChinaCom 2023, Proceedings
A2 - Gao, Feifei
A2 - Wu, Jun
A2 - Li, Yun
A2 - Gao, Honghao
A2 - Wang, Shangguang
PB - Springer Science and Business Media Deutschland GmbH
T2 - 18th EAI International Conference on Communications and Networking in China, ChinaCom 2023
Y2 - 18 November 2023 through 19 November 2023
ER -