基于方向图匹配的短波无线电测向算法研究

Research on Short Wave Radio Direction Finding Algorithm Based on Pattern Matching

在80m波段短波无线电测向中,针对磁性天线在测向过程中存在相位模糊的问题,本文提出一种使用直立天线与磁性天线叠加后的复合天线来测定来波方向,使用方向图匹配测向算法,通过MATLAB仿真出不同直立天线与磁性天线叠加比例的对照组,比较出最优的叠加比例组合。结果表明,当直立天线与磁性天线等比例叠加时,此时的复合天线为最优组合。

In 80m band short-wave radio direction finding,aiming at the problem of phase ambiguity of magnetic antenna in the process of direction finding,this paper proposes a composite antenna which uses the superposition of vertical antenna and magnetic antenna to measure the direction of of arrival.Using the pattern matching direction finding algorithm,the control group with different vertical antenna and magnetic antenna superposition proportions is simulated through MATLAB to compare the optimal superposition proportion combination.The results show that the composite antenna is the optimal combination when the vertical antenna and the magnetic antenna are superposed in equal proportion.