最大似然估计在搜索法测向中的应用

Application of Maxium Likelihood Estimate on Search Method Direction Finding

最大似然估计是一种高分辨的处理方法 ,常用在阵列测向中 ,但在旋转天线搜索法测向中却很少看到 ,本文提出一种在旋转天线搜索法测向中利用最大似然估计的数学模型 ,提出了利用信号检测法来判断目标数目的方法 ,并对此进行了计算机模拟 ,从模拟结果可以看出 。

ML estimate is a high precidion,super resolution method of signal process,usually used in array DF and seldomly found in search method DF with rotate antenna.This article gives a model of ML estimate used in search method DF with rotate antenna,and put forward a method to estimate the targets number with signal detection theory,then its computer simulation is gived.The simulation indicates that ML estimate used on search DF can improve its azimuth precision and resolution remarkably.