摘要
简要介绍了基于变频技术的软件无线电结构的形成,宽带中频采样接收机的变频原理及其过程,并以超外差接收技术和软件无线电理论为基础,从变频技术的视角分析了宽带中频带通采样接收结构的频率变换及频谱搬移过程,并给出了一种基于变频技术的软件无线电宽带中频采样接收机的硬件实现方案。
Based on the super heterodyne receiving technology and software radio theory, this paper analyzes the frequency conversion process and frequency pushing process in the wideband IF bandpass sampling and receiving structure against frequency conversion technique. At the same time, it puts forward a hardware realization scheme of software radio wideband IF sampling receiver on the basis of frequency conversion technique.
出处
《无线电通信技术》
2007年第3期61-64,共4页
Radio Communications Technology
基金
河北省科技厅攻关项目课题(04213527)
关键词
变频技术
软件无线电
宽带中频采样接收机
frequency conversion technique
software radio
wideband IF sampling receiver
