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方向图可重构天线可以选择信号传播的空间信道,而时间反演技术可以回溯信号的传播路径(空间聚焦特点)。因此,文中将时间反演技术和方向图可重构天线技术结合可以产生多个具有不同截获位置的信号。将信息分别调制到这些信号上,可以改善信息传播的安全性。文中,利用MATLAB所构建的电磁仿真模型模拟室内空间环境,对这一方法进行了仿真研究。
Directional reconfigurable antennas can choose the signal propagation of the spatial channel, and time inversion technology can trace the signal propagation path (spatial focus characteristics). Therefore, the combination of time inversion technique and directional reconfigurable antenna technique can generate multiple signals with different intercepted positions. Modulating information separately onto these signals can improve the safety of information dissemination. In this paper, the electromagnetic simulation model built by MATLAB is used to simulate the indoor space environment, and the method is simulated.