一种抑制雷达天线高仰角跟踪抖动的控制方法

A Control Method for Suppressing High-elevation Tracking Jitter of Radar Antenna

针对方位-俯仰型雷达设备在跟踪高仰角低速目标时跟踪天线存在方位抖动的问题,提出一种优化正割补偿算法,通过设置修正系数对俯仰角进行比例约束,从而对空间方位角的正割补偿增益进行限制,在不影响天线对目标正常跟踪的前提下,适当降低天线动态性能来减小天线的抖动,通过分析实际的工程应用数据表明,提出的改进方法对于高仰角情况下跟踪天线的抖动现象抑制效果显著,具有广泛的推广应用价值。

Aiming at the problem of azimuth jitter in azimuth-pitch radar tracking antenna when tracking high-elevation and low-speed targets,an optimized secant compensation algorithm is proposed,which restricts the forward secant compensation gain of space azimuth by setting correction coefficients to constrain the pitch angle proportionally,without affecting the antenna to the target.On the premise of normal tracking,the dynamic performance of antenna is degraded to reduce the jitter of antenna properly.The analysis of practical engineering application data shows that the improved method has significant effect on suppressing the jitter of tracking antenna at high elevation,and has wide application value.