摘要
机载综合电子战系统通常利用方位和俯仰正交的天线阵确定空间辐射源目标的方位和俯仰角。实际上由于安装的位置限制和误差的原因,方位和俯仰天线不可能完全垂直,无法采用常用的测向模型进行解算。若采用矢量法构建测向模型,没有解析解。针对非正交布阵的干涉仪测向系统,采用双圆锥交线法推导了一种解析二维测向计算公式,对其误差进行仿真分析,同时分析了角度测量范围,数值仿真结果证明了该方法的有效性。
The 2-dimensional orthogonal azimuth and elevation antenna arrays are often used in the aircraft-based integrated electronic warfare system（ IEWS） to get the azimuth and elevation angles quickly. However,the azimuth antennas are not perpendicular to the elevation antennas for restrictions on installation position and errors of the installation,which make it difficult to use the calculating model as usual. If the vector-based method is used,the calculation process is not analytic. In this paper,an analytical formula is derived for the non-orthogonal interferometer system based on the cone model. The error of this method is discussed in this paper. The measurement range of the non-orthogonal antenna system is also discussed. Numerical examples show the effectiveness of this method.
出处
《电子信息对抗技术》
2017年第6期11-15,34,共6页
Electronic Information Warfare Technology
关键词
机载相位干涉仪
非正交布阵
二维测向
aircraft-based phase interferometer
non-orthogonal antenna system
two-dimen-sional direction-finding
