载体运动对动中通天线指向影响

Carrier Movement Effect on Antenna Direction of Satellite Communication on the Move

动中通卫星通信系统要求载体运动过程中天线始终指向卫星以实现不间断通信。分析了载体运动及其路面起伏引起的对星误差。理论分析表明,路面起伏对天线指向误差影响较大,同时得出姿态测量系统延时要求,有助于姿态测量系统选型及动中通卫星天线总体设计。

In the satellite communication on the move （SCOM） system, the antenna is required to always point to the satellite to realize uninterrupted communication. The errors in antenna directing to the satellite are analyzed by the carrier movement and the rough road. Theoretical analyses shows that the rough road is the main factor causing errors. Then, the time delay requirement for the attitude measurement system is obtained. It can contribute the model selection of the attitude measurement system and the overall development of the SCOM antenna product.