Satellite power control method based on fuzzy logic control

被引：0
|
作者：
Liu P.-C. [1 ]
Xu J.-L. [1 ]
Huang J.-J. [1 ]
Zhang C.-J. [1 ]
机构：
[1] Micro-satellite Research Center, Zhejiang University, Hangzhou
来源：
Zhang, Chao-Jie (zhangcj@zju.edu.cn) | 1600年 / Zhejiang University卷 / 54期
关键词：
Fuzzy logic control; Power control; Ranging accuracy; Satellite communication system; Satellite formation;
D O I：
10.3785/j.issn.1008-973X.2020.05.022
中图分类号：
学科分类号：
摘要：
A power control method based on fuzzy logic control was proposed, aming at the problem that the access method of code division multiple access in the satellite communication system may cause problems such as near-far effect. The transmission power of each slave star was controlled in the inner loop power control, so that the received power of each slave star to the master star was balanced. The fuzzy logic controller improved the overall ranging accuracy by dynamically adjusting the target power to the best in the outer loop power control. The proposed power control method was compared with the traditional fixed step power control method in the simulation of Matlab. Simulation results show that both methods can make the power from each slave star to the master star equal, and track the minimum slave power. However, the power control method based on fuzzy logic control has faster response. An experiment platform for communication between a master star and three slave stars was established on the monitoring and control transponder. Experimental results showed that after power control, the overall ranging accuracy of satellite formation was increased from 60 cm to 20 cm, and the power from each slave star to the master star was balanced. © 2020, Zhejiang University Press. All right reserved.
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页码：1029 / 1038
页数：9
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