船载卫星通信天线控制的关键技术

Analysis of key considerations in the design of ship-borne antenna system

近年来随着卫星通信技术的飞速发展,船载卫星通信和广播电视接收等方面的需求越来越强烈,船载卫星通信是船舶远洋通信、应急救生、广播电视娱乐的重要手段,而船载天线是其中的核心,船载天线的性能直接决定了通信质量和效果。船载卫星天线为实现快速、稳定跟踪卫星,伺服控制起决定作用,因此,船载天线必一般具备三轴天线座作天线支撑,需要陀螺稳定技术隔离摇摆,并且有与陆地站不同的控制算法实现捕星和控制保护。

With the rapid development of satellite communication technology,the demand of ship-borne satellite communication and broadcast reception are becoming more intense in recent years.Ship-borne satellite communication is an important means of marine ocean communication,emergency rescue,and broadcasting entertainment.As the core of ship-borne satellite communication,the performance of ship-borne antenna directly determines the quality and effectiveness of the communication.Since servo system plays an determinant role in achieving fast and stable tracking,a triaxial antenna pedestal is necessary in ship-borne satellite.In order to realize the protection of the servo system and satellite capture,the gyro stabilization technique is used in antenna pedestal to isolate the swing,and a control algorithm is also needed which is different from the ground station.