基于二次差频的多频连续波测距方法研究  

Study on Multiple Frequency CW Ranging Method Based Quadric Difference Frequency

作　　者：袁俊泉[1] 龚享铱[1] 皇甫堪[1] 

机构地区：[1]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《电子学报》2004年第12期2056-2058,共3页Acta Electronica Sinica

摘　　要：多频测距解模糊的实现方式通常有两种 :二次差频和参差双频 .二次差频测距具有原理简单、接收机和发射机设计相对容易等优点 .本文对二次差频测距的基本原理进行了详细推导 ,并对正确解模糊对信噪比的要求给出了理论分析 ,最后通过仿真实验验证了该方法的有效性 。The realization mode of solving ambiguity for multiple frequency ranging usually has two kinds: quadric difference frequency and uneven dual frequency. The former has the advantages such as simple principle and easy design of receiver and transmitter. This paper deduces the principle of ranging based on quadric difference frequency in details and analyzes the need for SNR when solving ambiguity correctly. Finally simulation results verify the validity of the method. It provides the theory basis for design of multiple frequency CW ranging radar.

关 键 词：双频测距 多频测距 二次差频 信噪比 

分 类 号：TN958.94[电子电信—信号与信息处理]