摘要
面向低仰角区域的高精度测向,提出一种基于两个定向双圆阵的立体阵测向系统,构建了立体阵测向模型,并推导了立体阵测向误差。一个典型场景的应用结果显示,提出的立体阵有效提升了测向系统在低仰角区域的测向精度,并显著提升了定位精度。此外,考虑天线定向特性将给出更符合工程实际的立体阵测向性能。
A three-dimensional array based direction finding system with two directional circular arrays is proposed with several rotatable elements is proposed for the application of accurate direction finding in low elevation area.The direction finding model is established and the associated direction finding error is derived.The application results in a typical scenario show that the proposed three-dimensional array effectively improves the direction finding accuracy in low elevation area and significantly improves the localization accuracy.In addition,considering the antenna directionality would lead to more realistic estimation of the direction finding performance of the array.
作者
尤明懿
陆安南
YOU Ming-yi;LU An-nan(Science and Technology on Communication Information Security Control Laboratory,Jiaxing Zhejiang 314033,China;No.36 Research Institute of CETC,Jiaxing Zhejiang 314033,China)
出处
《通信对抗》
2020年第3期23-27,共5页
Communication Countermeasures
关键词
测向
低仰角
立体阵
定向天线
direction finding
low elevarion angle
three-dimensional array,directional antenna
