一种卫星通信低速突发信号隐蔽性增强方法  

A Method of Concealment Enhanced Technology of Low-Speed Burst Signal in Satellite Communication

作　　者：王延鹏[1] 李程 WANG Yanpeng;LI Cheng(No.54 Institute of CETC,Shijiazhuang Hebei 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《通信技术》2021年第7期1571-1576,共6页Communications Technology

摘　　要：突发通信在卫星重叠通信中应用较多,而接收端天线的能力较弱时需要占用较大的卫星功率,导致突发信号易被发现。基于重叠通信思路,研究了一种低速扩频突发信号的隐蔽性增强技术,并结合理论分析,给出了具体实施方法,进行了Matlab仿真。仿真结果表明,在基本不影响解调性能的情况下,采用基于频谱感知的隐蔽性增强策略,可以使带内功率波动从3 dB降到0.67 dB,增强了信号隐蔽性。The burst communication is widely used in satellite overlapping communication,and when the ability of receive antenna is weak,it requires more transmission power,which makes the burst signal easy to be discovered.Based on overlapping communication,a hidden enhancement technology of low-speed burst channel is studied,the concrete implementation method is given according to theoretical analysis.This method is simulated via MATLAB,the simulation results indicate that the hidden enhancement strategy based on spectrum perception can reduce the in-band power fluctuation from 3 dB to 0.67 dB,which enhances the signal concealment.

关 键 词：卫星重叠通信 扩频突发信号 隐蔽通信 误码率 

分 类 号：TN925[电子电信—通信与信息系统]