无线电罗盘的天线信号模拟器的电路设计

Design of Antenna Signal Simulator Circuit on Radio Compass

根据无线电罗盘的工作原理,设计了此无线电罗盘的天线信号模拟器电路,它模拟无线电罗盘的组合天线对地面导航台无线电信号的接收功能,为无线电罗盘接收电路提供含有低频方位的高频信号;在该天线信号模拟器中,采用了单片机、GPIB等技术,重点解决了在不同频率上飞机纵轴与导航台之间的夹角可在一定的精度上的任意控制,从而实现对某型无线电罗盘的主要性能参数的自动测试任务。

An antenna signal simulator circuit of the radio compass is designed,which is based on the operational principle of the radio compass.It simulates the work of the combined antenna of the radio compass with a ground navigation,which offers high frequency signals including the antenna bearings signal for the radio compass receiver.In the process of the antenna signal simulator circuit design,the techniques of Single Chip Micyoco and GPIB are adopted.It solves the difficulty of the efficient control of the inclination between the y-axis of a plane and the aerial electromagnetic wave from a ground navigation station and realizes the automatic detection role of the main radio compass performance figure.