基于DVB-S2的多通道卫星接收系统研究

Research on Multi-channel Satellite Receiving System Based on DVB-S2

DVB-S2是目前使用最为广泛的卫星数字视频广播标准之一,其性能满足市场的需求。在实际应用中,针对多个频率信号处理的需求,设计了一套DVB-S2的多通道卫星接收系统。该系统以FPGA为核心模块,来搭建DVB-S2信号处理设备,通过PCI-E接口与计算机相连,在计算机上开发信号处理软件,实现对四通道信号的分析处理,各通道之间相互独立。使用仿真信号源和实际卫星信号进行测试,与市场上单通道AZ910相比,多通道接收系统处理结果接近AZ910。

A DVB-S2 multi-channel satellite receiving system is designed to meet the needs of multi-frequency signal processing in this paper.This system takes the FPGA as the core module to build DVB-S2 signal processing equipment.It connects with the computer through PCI-E interface,develops signal processing software on the computer,and realizes the analysis and processing of four-channel signals.Each channel is independent of each other.Compared with single channel AZ910 on the market,the processing result of multi-channel receiving system is close to that of AZ910.