基于FPGA的数字中频接收和恢复系统设计  

A Digital IF Receiver and Recovery System Based on FPGA

作　　者：张乾坤[1] 田之俊[2] 

机构地区：[1]西安电子科技大学电子工程学院,陕西西安710071 [2]中国电子科技集团公司第54研究所遥测遥控专业部,河北石家庄050081

出　　处：《电子科技》2012年第7期110-113,共4页Electronic Science and Technology

摘　　要：介绍一种数字中频恢复系统,该系统分为光纤接收单元、FPGA核心单元和QDUC单元。光纤接收单元采用高速串行器/解串器TLK1501,完成高速串行数据的串行转换。FPGA核心单元对数据进行解码、检验、配置TLK1501和AD9957。QDUC单元实现基带信号的上变频和D/A转换。测试结果证明,系统具有实时性好、工作稳定、抗干扰性强的优点。A digital IF receiver and recovery system is proposed, which is divided into optical receiver unit, FPGA core unit and QDUC unit. The optical receiver unit completes high-speed serial data conversion using high-speed serializer/ deserializer TLK1501. The FPGA core unit achieves a data decoding and CRC check. In addition, FPGA configures TLK1501 and AD9957. The QDUC unit achieves DUC and D/A conversion. Results of experiments verify that the system has the advantages of good real-time performance, low bit error rate, good stability and strong anti-jamming ability.

关 键 词：光纤传输 FPGA 数字上变频器 

分 类 号：TN929.11[电子电信—通信与信息系统]