中文摘要：

为解决探空仪和地面接收系统的远距离无线通信问题,设计了一种定向接收天线自动跟踪系统。该系统根据目标探空仪和跟踪系统GPS定位数据,计算出探空仪相对跟踪系统所在地的俯仰角和方位角,利用伺服系统驱动定向接收天线,使定向接收天线的主波束自动对准探空仪所在位置,实现对探空仪的跟踪功能,较大程度地延长了通信距离。详细阐述了对球载探空仪的自动跟踪算法以及硬件实现结构。经过实际测试表明,系统具有跟踪效果良好、通信距离远、稳定性好、性价比高等特点,满足设计要求。

英文摘要：

An automatic tracking system is designed to achieve long distance wireless communication between sonde and receiving system. In accordance with the GPS data of sonde and tracking system, the pitching angle and azimuth angle of sonde are calculated, and with the drive of directional antenna by servo system, the main beam of directional antenna is aimed at sonde, thus realizing the tracking function prolonging the communication range. The automatic tracking algorithm and hardware structure are described in detail. The actual test indicates that the system is of good tracking capability, long communication ability, good stability, cost/effective performance and so on, and thus could achieve the design requirement.