相参FMCW导航雷达方案设计与信号仿真  

Design and signal simulation of coherent FMCW navigation radar system

作　　者：朱江[1] 董健[1] 王雪松[1] 

机构地区：[1]国防科学技术大学电子科学与工程学院,湖南长沙410073

出　　处：《现代电子技术》2014年第19期1-5,共5页Modern Electronics Technique

基　　金：国家自然科学基金资助项目(61201330)

摘　　要：相比于脉冲模式工作的雷达系统,调频连续波(FMCW)系统具有高距离分辨率、低成本、低功耗和无近距离盲区等优点。根据导航雷达的研制需求,讨论并设计了一套切实可行的基于相参FMCW体制的导航雷达实现方案。该方案深入分析了FMCW雷达目标探测原理,合理设计了系统结构和信号处理流程,并完成了系统的指标参数解算、雷达系统建模与信号处理仿真。经过论证,该导航雷达设计方案具有可行性和有效性。Compared with impulse radar,frequency modulated continuous wave(FMCW)system has advantages of higher range resolution,lower cost,lower power dissipation and no blind region at short range. According to actual demands on naviga-tion radar,an implementation scheme of the feasible navigation radar based on coherent FMCW form is analyzed and designed in this paper. The operating principle of FMCW radar is analyzed deeply in the scheme. The system′s total structure and the flow of signal processing are designed reasonably. Parameter calculation,radar modeling and signal simulation of the system were ful-filled. The verification results show the feasibility and effectiveness of the system.

关 键 词：相参FMCW系统 导航雷达 信号处理 建模仿真 

分 类 号：TN958.94[电子电信—信号与信息处理]