一种在波束倾斜跟踪系统中调试耦合的新方法

A New Method of Debugging Cross Coupling in Beam Deviation Tracking System

针对在电子波束倾斜跟踪系统中,接收机解调出的方位和俯仰误差电压存在耦合,在相互的交叉耦合比较大的情况下,既不利于天线跟踪,也容易引起结构件的磨损,降低设备使用寿命,构建并提出了一种通过移相技术降低交叉耦合的方法。同时对电子波束倾斜原理以及实现的方法进行了简要介绍,给出了电子波束倾斜以及基准的时序图,最后给出了在单片机定时器里实现这种算法的程序,此方法在某C频段跟踪天线系统中成功运用。

In beam deviation tracking system,there is cross coupling between azimuth and elevation error voltages demodulated from receiver.The higher cross coupling may be disadvantageous to antenna tracking,result in damage of structural parts,and shorten the service life of equipment.This paper proposes a method of reducing cross coupling with phase shift.The electronic beam deviation theory and implement method are introduced in brief,and the sequence chart of electronic beam deviation and reference are given. Finally the program of implementing the method is presented in single chip timer. The method is used in some C-band antenna,and the perfect result is obtained.