卫星便携站天线自动对星系统的设计与实现

针对卫星便携站窄波束天线找星难度大、对星耗时多、对星精度差的问题,设计并实现了一个附加在实装设备上的自动对星工具,以PIC单片机为核心,通过采集和处理GPS数据、方位俯仰传感器数据和卫星信号强度数据,控制高精度步进电机自动调整便携站天线方位角和俯仰角,从而实现快速、自动、精确对星。通过使用高精度步进电机代替传统手工操作,能够明显缩短对星时间、提高对星精度,且体积较小、安装拆卸容易、携带方便,显著提高了通信效能。

Design and implement of satellite auto-aiming system on antenna of satellite portable station

In the porcess of narrow-beam portable station antenna aiming the satellite,there are three problems: finding the satellite difficulty,aiming the satellite long-time and low-precision.In this article,an auto-aim instrument on equipment is designed and implemented.This instrument based on PIC singlechip can implement rapid,automatic and precise aiming the satellite by collecting and porcessing the data from GPS and sensors and signal strength module,controling stepping motors to adjust the azimuth and elevation of portable station antenna.Using this system,we can reduce the time,improve the precision in aiming the satellite and prove the efficiency of communication markedly.