动目标显示雷达模拟器地物回波单元的设计和实现

The design and realization of ground echo unit of moving-target indication radar simulator

在分析了地物杂波回波特性的基础上,首先设计了动目标显示雷达模拟器的地物回波形成单元的组成方框图。结合方框图,得出了形成地物回波的基本要素:同步计数电路、计数比较电路、多普勒调制电路。最后结合雷达自身的特点,设计了动目标显示雷达模拟训练器地物回波形成单元的基本组成电路,并将其与雷达联机,取得良好的效果。

This paper has analyzed the echo characteristics of ground clutters.We designed the block diagram of ground echo unit for moving-target indication radar simulator.Combined the block diagram,we get the conclusion that in order to generate ground echoes we should get three factors: such as the circuit of synchronizer,the circuit of compared counter and the circuit of Doppler modulation.With the characteristics of radar-self, we designed the circuit of ground echo signals.At last,we put the ground echo circuit to work with the moving-target indication radar and get satisfied effects.