基于船载卫星通信三轴天线的跟踪搜索技术

针对船载卫星通信三轴天线跟踪系统,介绍了船载三轴天线的系统组成,提出了一种基于捷联惯导的船载三轴天线跟踪搜索技术。天线以目标地理角为中心,通过坐标转换将目标地理角转换为天线的目标甲板角,调整AEC三轴使其及时准确地跟随目标甲板角。目前,该方法已经成功应用于多种船载三轴天线。实践表明,该方法能够快速准确地搜索到目标卫星,并实现对目标卫星的稳定跟踪。

Tracking Search Technology based on Shipborne Satellite Communicationthree-axis Antenna

For shipborne satellite communication three-axis antenna tracking system,the system composition of shipborne three-axis antenna is introduced,and a shipboard three-axis antenna tracking search technology based on strapdown inertial navigation is proposed.The antenna servo control system takes the target geographic angle as the center,and converts the target geographic angle to the target deck angle of the three-axis antenna through coordinate transformation,and adjusts the three-axis AEC to follow their respective target deck angle timely and accurately,so as to realize the search and tracking of the target satellite.At present,this method is successfully applied to a variety of shipborne three-axis antennas.Experiment shows that this method can quickly and accurately search for the target satellite and achieve stable tracking of the target satellite.