三毫米FMCW组件及高线性度实时校正技术  

FMCW Front Ends at W-band and Technique of Highly Linear Real-Time Calibration

作　　者：樊勇[1] 吴正德[1] 唐小宏[1] 汪学刚[1] 

机构地区：[1]电子科技大学

出　　处：《电子学报》1997年第6期119-123,共5页Acta Electronica Sinica

基　　金：电科院预研课题

摘　　要：根据ＦＭＣＷ雷达的工作原理，本文采用新技术和小型化３ｍｍ元部件，设计了先进的３ｍｍ前端电路，大大减小了组件体积，并采用了模拟一数字混合电路，由高速单片计算机完成了对３ｍｍＶＣＯ的调频线性度闭环实时校正．组件工作频率９４．８ＧＨｚ，调频带宽２８０ＭＨｚ，发射功率大于５ｍＷ，调频线性度优于０．２‰．On the basis of the principle of FMCW radar,this paper applies new technology and miniature unit circuits at W-band,proposes an advanced front end at W-band. Volume of the front end is decreased greatly. Analog-data hybrid circuits are used. A high speed chip computer is applied to complete FM linearity closed-loop real-time calibration for VCO at W-band. Operatingfrequency of front ends is 94. SGHz,FM bandwidth 280MHz,FM linearity below 0. 2%,,transmitting POwer more than 5mW.

关 键 词：毫米波 调频连续波 雷达 线性度校正 FMCW雷达 

分 类 号：TN957.52[电子电信—信号与信息处理]