说明：  本设计是基于FPGA技术来实现QPSK 数字调制传输系统。通过VHDL语言基于 FLEXlOK芯片完成了QPSK数字调制系统 的调制与解调模块、位同步信号恢复模块、 帧同步信号提取模块，数据采集模块、数据 恢复等模块的设计与仿真。
(This design is based on FPGA technology to achieve QPSK Digital modulation transmission system. Based on the VHDL language FLEXlOK chip has completed the QPSK digital modulation system Modulation and demodulation module, bit synchronization signal recovery module, Frame synchronization signal extraction module, data acquisition module, data acquisition module, data acquisition module.Design and Simulation of recovery module.)