海军航空大学学报2024，Vol.39Issue(2)：235-240,282,7.DOI:10.7682/j.issn.2097-1427.2024.02.006
FSO链路中基于平均信噪比的自适应功率传输技术
Average SNR Based Adaptive Power Transmission Technique in FSO Links
摘要
Abstract
In order to compensate for the scintillation effect caused by atmospheric turbulence and improve the perfor-mance of free-space optical(FSO)communication system,an adaptive power transmission technique based on the aver-age signal-to-noise ratio(SNR)is proposed.The power of transmitted signal is adjusted according to the average SNR of received signal to realize the compensation of atmospheric turbulence effect based on adaptive power transmission tech-nique without the knowledge of channel information.The channel model is constructed with different noise levels and tur-bulence intensities,and the proposed method is compared with fixed threshold decision(FTD)and adaptive threshold de-cision(ATD)techniques.The simulation results show that the proposed technique can significantly enhance the bit error rate(BER)performance compared with FTD,and it is close to ATD under different turbulence intensities.Therefore,this technique can effectively improve the capability of FSO links.关键词
自由空间光通信/自适应传输技术/平均信噪比/误码率Key words
free-space optical communication/adaptive transmission technique/average signal-to-noise ratio/bit error rate分类
信息技术与安全科学引用本文复制引用
吕鹏飞,洪燕青,荆千纹,刘文尧..FSO链路中基于平均信噪比的自适应功率传输技术[J].海军航空大学学报,2024,39(2):235-240,282,7.基金项目
辽宁省科技厅应用基础研究计划项目(2023JH2/101300225) （2023JH2/101300225）
辽宁省教育厅面上项目(JYTMS20231214) （JYTMS20231214）
