一种高速全数字卫星信号模拟源平台  

A High-Speed Digital Satellite Signal Simulator Platform

作　　者：马力科[1] 

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2013年第3期318-322,共5页Telecommunication Engineering

摘　　要：提出了一种高速全数字卫星信号模拟源的平台实现方案,该方案以在线可编程门阵列(FP-GA)和高速模数转换器(DAC)为平台设计核心,采用了DAC与FPGA高速接口设计、并行编码调制设计、数字白噪声生成设计、速率分级设计、DSP接口设计等设计手段,实现了高速编码和并行调制,完成了高速DAC全数字中频信号直接合成、实时宽带信道模拟、超宽带数字高斯白噪声生成等技术的研究与工程实践。A high-speed digital satellite signal simulator solution is provided. This solution uses Field Pro- grammable Gate Array（FPGA） and high speed Digital-Analog Convertor（DAC） as the core framework. DAC to FPGA high-speed interface design, parallel encoding and modulated design, digital white noise generation de- sign, data rate graded design, DSP interface design technology are adopted. High-speed parallel encoding and modulation are realized. Intermediate Frequency（IF） digital signal direct synthesizion, real-time broadband channel simulation and ultra-broadband digital Gause white noise generation technology are practiced in project.

关 键 词：卫星信号模拟源 高速DAC 高速数字信号直接合成 数字高斯白噪声 

分 类 号：TN802[电子电信—信息与通信工程] TN911