TY - JOUR
T1 - Highly precise ground certification system of satellite laser communication
AU - Li, Shao Hui
AU - Chen, Xiao Mei
AU - Ni, Guo Qiang
N1 - Publisher Copyright:
© 2017, Science Press. All right reserved.
PY - 2017/5/1
Y1 - 2017/5/1
N2 - To realize the high-accuracy evaluation of adaptive capacity of laser communication terminal to satellite platform disturbance and orbit attitude changes on the ground, the satellite disturbance simulation technique and satellite following analogue simulation technique were researched, from which the ground verification scheme for laser communication system was proposed. Firstly, the effect of laser communication link following detection error on system following performance, as well as the feature of satellite disturbance vibration source was analyzed. Then the model of the vibration source was constructed. The key technology on satellite disturbance simulation and following simulation and countermeasure were analyzed. Finally, combining with current satellite laser communication and satellite platform technology level, the disturbance and following simulation was developed and the laser communication system test was finished via typical data. Experimental result verifies that high-accuracy beam pointing control based on double feedback loop can improve the control accuracy of beam pointing of satellite disturbance simulator greatly, and the beam control accuracy is superior to 0.1″. With the high-frequency and low-frequency joint satellite disturbance simulation method, the high-accuracy beam control of which control bandwidth superior to 1 kHz is realized. Moreover, the detection accuracy of high-accuracy following system to following performance of satellite photo-communication terminal within satellite operating range reaches to 0.1″.
AB - To realize the high-accuracy evaluation of adaptive capacity of laser communication terminal to satellite platform disturbance and orbit attitude changes on the ground, the satellite disturbance simulation technique and satellite following analogue simulation technique were researched, from which the ground verification scheme for laser communication system was proposed. Firstly, the effect of laser communication link following detection error on system following performance, as well as the feature of satellite disturbance vibration source was analyzed. Then the model of the vibration source was constructed. The key technology on satellite disturbance simulation and following simulation and countermeasure were analyzed. Finally, combining with current satellite laser communication and satellite platform technology level, the disturbance and following simulation was developed and the laser communication system test was finished via typical data. Experimental result verifies that high-accuracy beam pointing control based on double feedback loop can improve the control accuracy of beam pointing of satellite disturbance simulator greatly, and the beam control accuracy is superior to 0.1″. With the high-frequency and low-frequency joint satellite disturbance simulation method, the high-accuracy beam control of which control bandwidth superior to 1 kHz is realized. Moreover, the detection accuracy of high-accuracy following system to following performance of satellite photo-communication terminal within satellite operating range reaches to 0.1″.
KW - Beam pointing control
KW - Following error
KW - Ground verification system
KW - Laser communication
KW - Satellite platform disturbance
UR - http://www.scopus.com/inward/record.url?scp=85026629238&partnerID=8YFLogxK
U2 - 10.3788/OPE.20172505.1149
DO - 10.3788/OPE.20172505.1149
M3 - Article
AN - SCOPUS:85026629238
SN - 1004-924X
VL - 25
SP - 1149
EP - 1158
JO - Guangxue Jingmi Gongcheng/Optics and Precision Engineering
JF - Guangxue Jingmi Gongcheng/Optics and Precision Engineering
IS - 5
ER -