数字化中频接收机的设计与实现

介绍了C频段统一测控系统中采用软件无线电思想进行数字化中频接收机设计的方案。对其工作原理进行了介绍,对其采用的中频采样、AGC控制、数字下变频等关键技术做了分析,最后给出了应用FPGA和DSP等器件实现该接收机的方法。该接收机具有多通道并行处理、大动态范围、高集成度等特点。应用结果表明,该接收机性能完全满足指标要求。

Design and Implementation of Digital IF Receiver

The paper introduces the design of a digital IF receiver using software radio technology,which has been used in TT＆C system.The paper also introduces the operation principle,analyses the key technologies of this receiver such as IF sampling,AGC control and digital down-conversion,and finally presents an implementation method which is realized through FPGA and DSP.The receiver features multi-channel parallel processing,large dynamic and high integration level,etc.,and the application result shows that the receiver fully meets the performance specification requirement.