一种低成本MVSAT天线指向控制系统设计

Design of MVSAT Antenna Pointing Control System with Low Cost

针对目前卫星移动通信终端的需要,设计并实现了一种甚小孔径移动终端卫星天线指向控制系统。说明了系统的组成、工作原理和软件流程图。对指向跟踪误差进行了分析,并采用软件和硬件两个方面进行了误差消除设计,提高了天线的跟踪速度和指向精度。车载移动通信试验的测试结果表明,该系统跟踪逻辑正确,可以有效降低通信信号的发射功率,具有较高的性价比,可广泛应用于车载、船载的小型移动卫星通信终端。

A low-cost antenna pointing control system of the mobile very small aperture terminal （ MVSAT） is designed and implemented to solve the hasty demanding for mobile satellite communication systems. The system structure,operation principle,and software flowchart of the system are presented. Based on analyzing the system pointing and track error, software and hardware correction measures are designed,which improve the antenna track velocity and pointing accuracy. The test result in vehicle loaded mobile communication experiments shows that the system offers perfect tracking logic ,and reduces the communication emission power effectively. On the whole, the system is cost-effective and can be broadly applied in vehicle loaded and ship-borne MVSATs.