三站匀扫波束时差定位及测量误差

该文针对仅由时差测量所得到的波束扫描角,并利用平面三角函数关系,即能直接在极坐标系中导出非直线不等间距三站阵列对匀速扫描雷达站的定位公式。应用误差估计理论所做的分析显示,基于匀速波束扫描时差测量的三站无源定位系统具有较高的测向精度,且在基线方向不存有测向盲区。采用非直线、不等距布阵亦能进一步有效降低测向误差。如V形布阵,则在阵列夹角的中心线上具有最小误差值。同时,误差分析亦表明,目前所给出的距离公式的测量误差还是较大的。

TOA Location and Measuring Error for Uniform Scanning Beam with Three Stations

Only according to the scan angle of radar beam obtained by time difference measurement,and making use of the functional relation of plane trigonometry,the location formula of array with three stations detecting the beam scanning radar,which is non-straight line and unequally spaced,can be directly derived from polar coordinate system.The analysis by use of the error estimation theory shows that the passive location system with three stations based on the time difference measuring by uniform beam scan has go...