摘要
介绍了QPSK信号的实现原理,提出一种QPSK高性能数字调制器的FPGA实现方案,并给出了其在QuartusⅡ环境下的仿真结果。结果表明,基于PLL的QPSK调制器,设计简单,便于修改和调试,性能稳定。
This article introduced the implementation principle of QPSK,and proposed a high-preforrnance QPSK digital modulator＇s implementation method based on FPGA. The simulation and experiment of FPGA design were given with QuartuslI.Result shows,the QPSK modulator based on PLL, simple in design, convenient to modify and debug, and it operates stable.
