Abstract:

To address the needs of routine satellite communication support and adversarial training， a design scheme of a satellite communication simulation system was proposed， taking a small tethered multi-rotor drone as the carrying platform and vehicle-mounted multi-system satellite communication equipment as the main body. The drone adopted a coaxial dual-rotor stacked configuration on the upper and lower layers and only carried partial modules of the simulated satellite transponder onboard， which solved the problems of insufficient payload capacity and energy supply of small drones and provided the conditions to simultaneously simulate two in-orbit satellites. By using the software-defined radio technology， intermediate-frequency digital processing universal boards and functional modules were utilized to customize multi-waveform and multi-system vehicle-mounted simulated terminals and transponder equipment， which could simulate multi-target satellite communication links. A satellite link calculation model was established. The analysis results indicate that the system margin is sufficient to construct long-range communication links and short-range adversarial links， and the system supports the hybrid networking and link establishment between in-service equipment and simulated equipment. It provides references for the construction of similar electronic warfare training target systems.

Key words: drone, satellite communication, software-defined radio, link calculation, target, margin

摘要：

针对常态化卫星通信保障和对抗训练需求，提出一种以小型系留多旋翼无人机为搭载平台、车载多体制卫星通信设备为主体的卫星通信模拟系统设计方案。无人机采用共轴双桨、上下两层重叠布局设计，并且只搭载模拟卫星转发器部分模块，解决了小型无人机载荷能力和能量供给不足难题，具备同时模拟2颗在轨卫星的条件。采用软件无线电技术，利用中频数字处理通用板卡和功能模块，定制多波形、多体制车载模拟终端和转发器设备，能够模拟多目标卫星通信链路。建立卫星链路计算模型，分析结果表明系统余量足够构建远距离通信链路和近距离对抗链路，支持在役装备与模拟装备混合组网建链，可为建设类似电子战训练靶标系统提供借鉴与参考。

关键词: 无人机, 卫星通信, 软件无线电, 链路计算, 靶标, 余量