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针对空投技术的定位问题,提出了一种新的定位方法。首先,在空投目标区域放置发射机,发射天线在3个方向形成彼此相交的波束,发射机与3个波束的交点构成中心线,3个波束关于中心线对称。其次,发射天线在3个方向发射相同功率,不同频率的信号。最后,载荷上的接收机实时接收信号,经傅里叶变换得到信号频谱图。3个信号功率相等时载荷位于中心线上,保持现有飞行方向;3个信号功率不等时,根据偏离中心线的位置对飞行方向进行调整,确保载荷能够准确到达目标区域。该方法具有较高的定位精度,能够适应复杂电磁环境。
Aiming at the location of airdrop technology, a new positioning method is proposed. First, a transmitter is placed in the target area. The transmitting antenna forms beams intersecting each other in three directions. The intersection of the transmitter and the three beams forms a center line and the three beams are symmetrical about the center line. Secondly, the transmitting antenna transmits signals of the same power and different frequencies in three directions. Finally, the receiver on the load receives the signal in real time and obtains the signal spectrum by Fourier transform. When the three signals have the same power, the load is located on the centerline and the existing flight direction is maintained. When the power of the three signals is not equal, the flight direction is adjusted according to the position deviating from the centerline to ensure that the load can reach the target area accurately. The method has high positioning accuracy and can adapt to complex electromagnetic environment.