任意平面阵对相关信号源的高分辨测向技术

High Resolution Direction Finding Technique of Correlated Signals for Arbitrary Planar Array

由于空间谱估计 MUSIC 算法对相关信号源测向时会导致性能下降甚至失效,对于任意设置的平面天线阵列,文中介绍了一种基于空间平滑和阵列内插思想的入射角估计方法,可以较好的估计相干信号源的入射方向;并提出了一种多扇区情况下信号源方位角的估计方法。对该方法进行了理论分析和计算机模拟。模拟实验结果验证了这种方法的正确性和可行性。

For the spatial spectrum estimator MUSIC algorithm isn't very efficient for perfectly correlated signals,a good method which bases on the ideas of spatial smoothing and array interpolation is introduced and an estimation method of AOA under multisectorial model is proposed.This technique can be applied to arbitrary planar array and estimate AOA of correlated signals well.The performance of this technique is theoretically analyzed and evaluated by extensive computer simulations.The results prove that it is accurate and feasible.