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Transversal Velocity Measurement of Multiple Targets Based on Spatial Interferometric Averaging

机译:基于空间干涉平均的多目标横向速度测量

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The linear velocity of an arbitrary moving target comprises two orthogonal components with reference to the observing radar, namely radial and transversal velocities. The transversal velocity can be measured by an interferometric radar directly. When measuring multiple targets, there exist cross-terms that have no physical meanings and interfere with the extraction of the useful frequency. In this paper, we propose a new method utilizing a uniform linear receiving array with three antennas based on spatial interferometric averaging to suppress the cross-terms and measure the transversal velocity of multiple targets simultaneously. The basic idea of spatial interferometric averaging is to use subarrays of a uniform linear array to obtain an averaged correlation output, the phase terms of which contain the pure transversal velocity. Simulation results are provided to validate the effectiveness of the proposed method.
机译:任意移动目标的线速度包括参考观察雷达,即径向和横向速度的两个正交组件。横向速度可以通过干涉雷达直接测量。在测量多个目标时,存在不具有物理含义的横向术语,并干扰有用频率的提取。在本文中,我们提出了一种利用具有三个天线的均匀线性接收阵列的新方法,该方法基于空间干涉测量平均来抑制交叉术语并同时测量多个目标的横向速度。空间干涉测量平均的基本思想是使用均匀线性阵列的子阵列,以获得平均相关输出,其相位术语包含纯横向速度。提供了仿真结果以验证所提出的方法的有效性。

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