论文部分内容阅读
提出并实现了一种利用卫星信标信号来实施基于相控阵天线的波束跟踪算法。该方法适用于采用相控阵天线技术的各种卫星“动中通”天线,克服了卫星信标信号强度弱,检测困难的弱点,提高了跟踪信噪比,同时采用了软件无线电方式解调可以提供最大的灵活性。跟踪算法的最大优点是没有任何陀螺仪的辅助,极大地提高了天线在各种极端运动环境下的适应能力。算法最终在自行研制的Ku波段相控阵移动卫星天线系统上获得验证。
A beam tracking algorithm based on phased array antenna is proposed and implemented using satellite beacon signals. The method is applicable to all kinds of satellites using the phased array antenna technology, and overcomes the weakness of the satellite beacon signal strength and detection difficulties and improves the tracking signal-to-noise ratio. At the same time, the software radio mode Demodulation can provide maximum flexibility. The biggest advantage of the tracking algorithm is that without any gyroscope, it greatly improves the ability of the antenna to adapt to various extreme sports conditions. Finally, the algorithm is verified on the Ku-band phased array mobile satellite antenna system developed by ourselves.