摘要
同步调谐可有效展宽甚低频天线的有效带宽,文中利用FPGA分别产生码流产生器、时钟产生器、正弦信号产生器,实现了MSK调制,并且通过FPGA实时控制MSK信号"空号"和"传号"的信号分开,实验结果表明电路可实现任意载频及码元速率的MSK调制,并且按照"空号"和"传号"频率把其严格区分开来,为实现同步调谐奠定基础。
The dynamic tuning system can improve the VLF antenna bandwidth .in this paper ,produced code generator and clock generator and sine wave generator based on FPGA,achieved MSK signal. Control MSK signal and separated space and mark signal through FPGA In real-time . The experiment result indicates that the Circuit can produce MSK signal with arbitrary carrier frequency and code speed and strict separated according to space and mark. In order to achieve dynamic tuning establish groundwork.
出处
《微计算机信息》
2012年第3期52-53,共2页
Control & Automation