空间光通信视音频同步无线传输关键技术研究  

Research on Key Technologies of Video and Audio Synchronous Wireless Transmission in Space Optical Communication

作　　者：吴源源[1] WUYuanyuan(Xiamen City University,Xiamen 361004,China)

机构地区：[1]厦门城市职业学院,福建厦门361004

出　　处：《电声技术》2024年第10期151-153,共3页Audio Engineering

摘　　要：针对空间光通信系统在复杂环境下易出现视音频信号不同步问题,研究一种空间光通信视音频同步无线传输(Spatial Optical Communication Audio-Visual Synchronous Wireless Transmission,SOC-AVSWT)方法。该方法通过高精度时钟同步、高速光调制解调、自适应光学波前矫正等关键技术,实现视音频信号的无线同步传输。实验结果表明,在不同大气湍流强度下,SOC-AVSWT方法均表现出良好的性能,误码率最低可达1×10^(-9),时间同步误差控制在纳秒级别。Aiming at the problem of non-synchronization of visual and audio signals in space optical communication system in complex environment,a Spatial Optical Communication Audio-Visual Synchronous Wireless Transmission(SOC-AVSWT)method is studied.This method uses high-precision clock synchronization,fast optical modulation and demodulation,and adaptive optical correction.Experimental results show that SOC-AVSWT performs well under different atmospheric conditions,with a bit error rate as low as 1×10^(-9) and synchronization errors controlled at the nanosecond level.

关 键 词：空间光通信 视音频同步 自适应光学 

分 类 号：TN929.1[电子电信—通信与信息系统]