用于DVB-S的全数字QPSK解调器方案

摘要

根据Digital Video Broadcasting-Satellite(DVB-S)标准,设计了一种结构简单、算法易于FPGA硬件实现、可纠频偏范围大、性能较稳定的全数字正交相移键控调制(Qudrature Phase Shift Keying,QPSK)解调器系统实现方案,经过企业FPGA硬件平台调试,已被某商业产品采用.%An all-digital Quadrature Phase Shift Keying(QPSK) demodulator system,which has simple structure,easy FPGA hardware implementation,wide range of correction to frequency offset and reliable performance character, is designed for the Digital. Video Broadcasting-Satellite(DVB-S).The solution has been tested on the FPGA hardware platform of a company and been implemented in a commercial product.