摘要
高精度时频设备要求输出精准的时间信息,B码是时频设备中一种被广泛采用的时间码。论文以FPGA为核心,设计了一种基于北斗授时信息的B码电路转换方法,授时信息来自中国自主的北斗卫星导航系统,保障了中国用户的信息安全,并采用FPGA技术来完成B码编码,保证了系统在时序上的可靠性。
The output of precise time information is required in high-precision equipment. B code is a kind of time code which is widely adopted in time-frequency equipment. In this paper, by taking FPGA as the core, the method for B code circuit transformation based on Beidou timing information is designed. And the the Beidou timing information is from Beidou satellite navigation system developed independently by China, which ensures the information security of the users at homer. In this paper FPGA technology is employed to complete encoding of B code and guarantee the reliability of the system in the timing.
出处
《信息安全与通信保密》
2008年第12期92-93,共2页
Information Security and Communications Privacy
