论文标题
雷达目标模拟中的准单位天线位移
Quasi-Monostatic Antenna Displacement in Radar Target Simulation
论文作者
论文摘要
雷达目标模拟器（RTS）最近在研究和商业开发中引起了很多关注，因为它们能够在实验室条件下通过产生虚拟雷达回波在实验室条件下进行空中验证测试，而虚拟雷达回波被测试的雷达视为靶标（DRUT）。这种虚拟目标的估计到达角度（AOA）取决于创建它的特定RTS通道的物理位置，因此在计划设置时必须考虑。一个通道采用两个天线，一个用于接收，另一个用于接收雷达信号。天线位于靠近的位置，但仍在空间上分离，因此RTS通道可以被视为准单位静态，这会导致角度模拟中不可忽略的不准确性。在本文中，作者研究了这种系统缺陷对角度估计的分析含义，该估计提供了对角度模拟RTS系统的设计和设置的支持。开发的数学推导通过测量验证。
Radar target simulators (RTS) have recently drawn much attention in research and commercial development, as they are capable of performing over-the-air validation tests under laboratory conditions by generating virtual radar echoes that are perceived as targets by a radar under test (RuT). The estimated angle of arrival (AoA) of such a virtual target is determined by the physical position of the particular RTS channel that creates it, which must therefore be considered when planning the setup. A single channel employs two antennas, one for the reception and the other for the re-transmission of the incoming radar signal. The antennas are positioned close together, but still spatially separated, thus an RTS channel can be considered quasi-monostatic, which causes non-negligible inaccuracies in the angle simulation. In this paper, the authors examine the analytical implications of this systemic deficiency on the angle estimation, which provides support for the design and setup of angle-simulating RTS systems. The mathematical derivations developed are verified by measurement.
