This paper made use of the locate function of GPS to determine the speciifc spot beam region of the mobile satellite application station in the IP-STAR satellite, the GIS map library kept in the CPU of the signal receiver and the spot beam database of the IP-STAR satellite; in addition it made use of the obtained information to which spot beam it had switched by means of the software of the user’s terminal computer to instruct the satellite antenna’s automatic tracking and the IP-STAR modem parameters’ automatic modiifcation, so that it realized the function of the automatic instruction of the IP-STAR modem’s access network. This paper achieved the automatic satellite-tracking and access network’s closed-loop control equipment and technique of the IP-STAR mobile satellite application station which were low-cost, simple to control, easy to operate, stable and high-precision.%利用GPS的定位功能，确定移动卫星应用站所在IP-STAR卫星的具体点波束区域，与储存在信号接收机内的CPU的GIS地图库及IP-STAR的点波束数据库，并能通过用户终端计算机安装的软件来获取跨到哪个点波束的信息，来指令卫星天线自动寻星完成及点波束的信息和自动修改IP-STAR调制解调器的参数，从而达到自动指令IP-STAR调制解调器完成入网的功能，实现了成本低廉、控制简单、便以操作、稳定性好、精度高的一种闭环IP-STAR移动卫星应用站的自动寻星和入网的控制装置及控制方法。
展开▼
