摘要
针对双DA在起始工作中随机出现异步工作的问题,在总结现有双DA同步技术优缺点的基础上,通过进一步分析问题产生的机理,提出了一种基于锁相环检测的双DA同步技术。通过应用该同步技术,设计并实现了一种高速基带信号处理板卡。通过实验比对该双DA同步技术使用前后板卡输出的基带信号眼图,确定该同步技术可以有效解决以上问题。
In this paper,a new technology of dual DA synchronization based on phase locked loop detection is proposed,by further analyzing the mechanism of the problem of dual DA asynchronous working randomly at the initial time and summarizing the advantages and disadvantages of the existing dual DA synchronization technologies. In applying this technology,a high speed baseband signal processing board is designed and implemented. Finally,the baseband signal eye diagrams using or not using the technology are compared.And it is determined that the dual DA synchronization technology can solve the problem effectively.
出处
《无线电工程》
2017年第12期10-14,共5页
Radio Engineering
基金
国家部委基金资助项目
中国电子科技集团公司第五十四研究所发展基金资助项目(YX161140001)
关键词
正交调制
DA同步
异或
锁相环
眼图
orthogonal modulation
exclusive-or operation （phase locked loop
eye diagram
