小型飞行器无线组网系统设计与实现

针对现有小型飞行器组网通信的无线网络标准技术在接入模式、网络延迟和灵活性等方面存在的问题，提出了一种通视条件全空域无线组网的系统架构和方案，完成了相应组网终端的软硬件设计、实现及系统测试验证。方案在网络层采用动态时分多址（TDMA）接入技术，构建低时延的无中心网状网络，使网络节点可动态、快速地接入和退出网络，兼顾了时间敏感数据的实时传输和突发数据的大容量传输；在物理层采用基于频谱感知的自适应跳频通信技术，以保证不受干扰影响的可靠通信，增强了系统的抗干扰和抗截获能力。在组网终端的设计过程中，利用模块化和低功耗处理器集成设计，平衡了SWaP指标，满足了苛刻使用环境条件下的通信距离和数据传输速率等指标需求。系统测试验证表明该组网系统方案可行、性能良好。

Design and Implementation of Wireless Networking Communication System for Small Aircrafts

The existing wireless network standard technologies used in the networking communication systems for small aircraft have some restrictions on multiple access mode,network delay and flexibility.In order to solve this problem,a system architecture and scheme for wireless networking communication of whole airspace under intervisible condition is proposed,and the hardware and software design and implementation of the corresponding networking terminal and the system validation are completed.In the network layer,dynamic TDMA access technology is introduced to build a low delay decentralized mesh network,so that the network nodes can dynamically and quickly access or exit the network,which takes into account both the real-time transmission of time-sensitive data and the large-capacity transmission of burst data.In the physical layer,adaptive frequency hopping communication technology based on spectrum sensing is used,that brings the system reliably communication,and has anti-jamming and anti-interception capabilities.In the design process of the networking terminal,the integrated design of modular circuits and low-power processor helps to trade off the size,weight,and power (SWaP),and meet the requirements of communication distance and data transmission rate under harsh environment conditions.System test verification shows that the networking system is feasible and has good performance.