摘要
AD9857是AD公司推出的一款高性能数字正交上变频器。介绍了AD9857的系统结构、工作原理,并给出了在雷达回波模拟生成系统中的应用方案。基于DSP和AD9857实现数字上变频,具有结构简洁、通用性好、可靠性强等特点,能满足多种调制信号的上变频处理,可实时改变数字基带信号的调制方式和雷达的工作参数,实现了雷达工作参数的可编程性。
AD9857 is a high capability digital quadrature up-converter. The system structure, work theory are introduced mainly and a design of radar echo simulation system is provided. The design implements digital up-convert based on the AD9857, having simple structure, good credibility, etc. This design can satisfy several kinds of signal＇s up-convert, and can real-time change the modulation mode of base signal and work parameter of radar.
出处
《科学技术与工程》
2007年第14期3568-3570,3587,共4页
Science Technology and Engineering
