雷达天线系统改进设计新方法

Design a New Kind of Antena System Radar

抛物面天线是火控雷达中普遍使用的一种跟踪天线,通过系统优化设计,可以形成很窄的波束,所以其跟踪精度很高,因为其波束很窄,所以搜索发现目标困难。利用阵列信号处理方法,对连续口径天线进行分析,将抛物面天线改进成为一种集搜索、跟踪于一体的新型天线。同时,在改进后雷达的高频部分增加高频放大器,以抵消天线改进后引起的增益下降。新系统既容易搜索发现空中目标,又具有较高跟踪精度。

Parabolic antenna in a widely used is tracking antenna area,By use the optimum design,it may produce a very narrow beam,it's tracking precision is high,but because it's beam width is very narrow,the searching target is very difficult.In this paper,we use method of array signal processing,analyze the continuous aperture antenna,modify the parabolic antenna to a new antenna system that possess the functional of the searching and tracking.Simultaneously we append a high frequency amplifier in the high frequency sector,in order to recover the reduction of the gain in the new system.The new antenna system can not only search the target very easy,but also possess the high tracking accury.