面向飞行器组网的三维动态定点安全精准无线传输方法

To satisfy the demands of reliable and secure communications for multi aerial crafts in high dynamic and complex electromagnetic environments, we will study the precise wireless transmission strategies. First, taking into account the impact of multidimensional flight information such as position, posture and Doppler shifts, we will analyze the special characteristics for 3D secure precise transmission system model, which can provide theoretical basis for the following analysis and design. Secondly, we will develop the multidimensional flight information jointly estimation methods. In the presence of estimation errors on measurement information, we will design robust beamforming alignment methods and transmission technologies for aerial crafts networks. Moreover, we will analyze the system performances, such as secure capacity and bit error rate (BER). When the number of transmission antennas tends to medium or large scales, we will also derive the asymptotic results and analyze the impact of the flight information estimation errors and Doppler shifts on the system performances. The results in our project can remarkably increase the capabilities of anti-interference and anti-interception for aerial crafts networks in complex electromagnetic environments, and offer security safeguard for high speed information interactions.

为满足复杂电磁对抗环境下高动态多飞行器智能组网、可靠传输和安全通信需求，本课题研究三维动态定点安全精准无线传输方法。将开展以下三方面的研究：1）综合考虑飞行器位置、姿态以及多普勒频偏等因素影响，研究三维动态定点安全精准无线传输系统模型特性，为飞行器组网安全精准通信提供理论基础；2）研究适用于飞行器的位置、姿态及多普勒频偏等多维参数联合估计方法，分析多维参数的测量误差统计特性，构建稳健波束成形与精准对齐方法，解决飞行信息存在测量误差时稳健的精准通信问题；3）研究三维动态定点精准无线通信系统安全容量和误码率等性能，推导其在中大规模天线阵列下的渐近解析表达式，以及特殊情况下的近似解与上下界，并分析多维飞行信息测量误差、多普勒频偏等对系统性能的影响。本项目研究成果将显著提升复杂电磁对抗环境下飞行自组网的抗干扰与抗截获能力，为高速飞行器网络中安全可靠的信息交互提供基本保障。

为满足复杂电磁对抗环境下高动态多飞行器智能组网、可靠传输和安全通信需求，本课题研究三维动态定点安全精准无线传输方法。研究了基于精准通信的无人机稳健波束成形设计。构建了稳健波束成形与精准对齐方法，解决飞行信息存在测量误差时稳健的精准通信问题，大大提高了无人机通信中的信息安全。针对无人机的三维场景，为了能够使得该场景下的安全速率能够达到最大，研究了无人机的位置规划。经过数值仿真，可以发现所提出的稳健波束成形设计能够大大提高无人机的安全通信能力。此外，无人机的位置经过优化之后，安全速率也有了显著提高。本项目研究成果将显著提升复杂电磁对抗环境下飞行自组网的抗干扰与抗截获能力，为高速飞行器网络中安全可靠的信息交互提供基本保障。