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Beam Steering in Global Positioning System Receivers using Synthetic Phased Arrays

机译:使用合成相控阵的全球定位系统接收器中的波束转向

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This correspondence introduces a concept of synthetically generated phased arrays to the area of Global Positioning System (GPS). GPS antennas generated at different spatial locations are combined into a synthetic phased array to improve the beam sharpening performance without increasing the antenna's physical size. A fast Fourier transforms (FFT)-based method is applied for simultaneous steering of the synthetic array's beams in multiple directions. The synthetic beam-steering approach discussed can be applied for improving GPS robustness to RF interference and for simultaneous tracking of multiple signal sources (i.e., direct signal and multipath reflections). Simulation results and experimental test results are presented to demonstrate the efficacy of synthetic beam steering techniques for GPS antennas.
机译:这种对应将合成生成的相控阵的概念引入了全球定位系统(GPS)领域。将在不同空间位置生成的GPS天线组合成一个合成相控阵,以提高波束锐化性能,而无需增加天线的物理尺寸。一种基于快速傅立叶变换(FFT)的方法可用于同时控制合成阵列光束的多个方向。所讨论的合成波束控制方法可用于提高GPS对RF干扰的鲁棒性,并用于同时跟踪多个信号源(即直接信号和多径反射)。给出了仿真结果和实验测试结果,以证明合成波束转向技术对GPS天线的有效性。

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