Ka频段飞行器测控与通信系统设计

传统基于S频段的统一载波测控系统受工作频率低、频带窄的特点限制,无法满足各类飞行器测控与通信系统对高速数传、宽带扩频、克服“黑障”、抗干扰等方面日益增长的需求,给系统设计带来了新的挑战。本文提出一种基于Ka频段直接序列扩频通信体制的实现遥测、外测、遥控等功能的飞行器测控与通信系统,给出了系统架构及主要设备组成,同时对地面测试方案进行了介绍。该系统具备体积小、频带宽、扩展性好等特点,可用于未来空间飞行器特别是小型化、大容量飞行器设计。

Design of Ka Band TT&C and Communication System of Spacecraft

Traditional S-band-based unified carrier measurement control and communication system limited by the low working frequency and narrow bandwidth can not meet the increasing requirements of modern and future spacecraft measurement control and communication system for high-speed data transmission, communication bandwidth, installation space, overcoming blackout, anti-interference, etc. This paper put forward a Ka-band direct sequence spread spectrum system spacecraft control and communication system , which has the characteristics of narrow band, good space selecting and blackout overcoming, to solve the above problems by the point frequency and channel unity of telemetry, orbit measurement system and remote control, simplifying the system structure and reducing equipment size. The system architecture and the main equipment of the system are introduced, the detailed design of the data acquisition equipment, Ka-band integrated terminal equipment and the selection of the antenna feeder equipment are described, and the ground test system is presented. The system has the characteristics of small size, wide bandwidth and good expansibility, which can meet the requirements of the design and application of future spacecraft measurement control and communication system.