LFMCW雷达中频接收机的设计与实现  

Design and implement of LFMCW radar IF receiver

作　　者：周川[1] 皮亦鸣[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都611731

出　　处：《电子设计工程》2011年第7期147-149,共3页Electronic Design Engineering

摘　　要：针对一种线性调频连续波(LFMCW)雷达系统结构,提出一种中频接收机硬件平台的设计方案。该方案采用AD8347正交解调器做I/Q下变频,AD9248模数转换器做采样,EP3C80 FPGA做数字信号处理,PCI9054做PCI接口,并给出了系统软件的设计方法。实现了对线性调频连续波雷达中频信号的接收、处理和存储。通过测试,该接收机能够准确测量出目标信号的频率信息,可为雷达成像提供原始数据。Aiming at the structure of a LFMCW radar system, a hardware plattbrm for IF signal receiver is presented. This system design uses AD8347 as direct I/Q demodulator, uses AD9248 as A/D converter, uses EP3C80 to process digital signal, and uses PC19054 as PCI interface. And it also gives the design method of the system software, which realizes the receiving, processing and storage of IF signal of LFMCW radar. Through the test, the receiver can accurately measure out the frequency of target signal, which could provide original data for radar imaging.

关 键 词：线性调频连续波雷达 中频信号接收机 FPGA PCI 

分 类 号：TN957.5[电子电信—信号与信息处理]