摘要
论述了数字下变频的原理和结构,分析了其频谱搬移过程,介绍数字下变频专用芯片HSP50214B的原理、内部结构及其配置,重点分析他的抽取滤波器的特性,最后给出其在RCS测量雷达信号处理机中的应用,并给出其现场测试实验波形。在高抽取率、低数据带宽的情况下,HSP50214B提供了非常灵活的解决方案。
This paper deals with the principle and structure of HSP50214B via the general principle and structure of digital down converters and its process of spectrum moving. It emphatically analyses the characteristics of HSPS0214B＇s decimationfilter and presents its application in RCS measuring radar signal processing machine and its experiment testing figure . Giving the conclusion that in the condition of high decimation rate and low data bandwith, HSP50214B provide a very excellent solution.
出处
《现代电子技术》
2007年第15期52-54,共3页
Modern Electronics Technique
