一种阵列测向模型修正方法

A Correction Method of Array Direction Finding Model

由于天线组阵后会造成各阵元天线相位中心与其物理中心不一致,因此在工程应用中需要对理论阵列模型进行修正。提出了一种阵列测向模型工程修正方法。首先,通过实际测试获取二维空间角度与阵列的实际响应,再通过离线回归分析处理提取修正后的阵列模型,最后进行了仿真和实验验证。结果表明,该方法能够有效改善阵列测向精度。

Because the phase centers of each element antenna are not consistent with their physical centers after antenna array formation,it is necessary to modify the theoretical array model in engineering application.An engineering correction method of array direction finding model is proposed.Firstly,the two-dimensional space angle and actual response of the array are obtained by actual test,and then the modified array model is extracted by regression analysis.Finally,the simulation and experimental verication are carried out.The results show that this method can effectively improve the accuracy of the array direction finding.