摘要
针对无人机机载平台功率资源受限、频谱资源受限等问题,开展了高阶调制技术在无人机宽带数据链中的应用研究。重点研究了调制方式选择、定时同步和载波同步等关键技术,提出了一种适用于高阶调制信号的定时同步、载波同步方案,并利用Matlab搭建高阶调制信号收发模型,对定时同步、载波同步方案进行了仿真,验证了方案的有效性。研究结果对无人机宽带数据链采用高阶调制技术提供了一定的参考。
Based on the characteristics of UAV platform such as limited power and spectrum resources,the application of high order modulation technology in UAV broadband data link is researched.Key technologies include the selection of modulation scheme,timing synchronization and frequency synchronization,and a timing and frequency synchronization scheme applicable to high order modulation signal is proposed.In order to verify the scheme performance,the transmission model of these high order modulation signals are established with Matlab,then the simulation of the timing and frequency synchronization scheme is implemented,and the result shows the effectiveness of the scheme.The research results provide a technical reference for the adoption of high order modulation technology in UAV broadband data link.
作者
梁保卫
王利平
涂海洋
郑轶文
LIANG Baowei;WANG Liping;TU Haiyang;ZHENG Yiwen(The 54th Research Institute of CETC,Shijiazhuang 050081,China;The Military Representative Office of the Air Force Equipment Department in Shijiazhuang,Shijiazhuang 050081,China;College of Science,Nanjing Forestry University,Nanjing 210037,China)
出处
《无线电工程》
北大核心
2022年第4期544-549,共6页
Radio Engineering
基金
国家部委基金资助项目。
关键词
无人机
宽带数据链
高阶调制
UAV
broadband data link
high order modulation
