导引头目标模拟器设计与实现

摘要

As an important component in the Radar Seeker HWIL (hardware-in-the-loop)simulation, seeker target simulator plays the important role in generating simple jamming signal and echo signal which includes the characteristics of target distance, velocity, power and angle. The paper introduces the characteristics principle of target echo signals, and advances the design and implementation method of seeker target simulator. It especially explains the mechanism of using DDS and DRFM to simulate the target' s velocity and distance information. The realization of the simulator can simulate target signal expediently, and moreover, it embraces high precision.%作为雷达导引头半实物仿真系统中的重要组成部分,导引头目标模拟器主要用于产生包含目标距离、速度、角度和功率等特征信息的回波信号,并能简单地模拟干扰信号.介绍了回波信号的特征原理,提出了导引头目标模拟器的设计实现方法,着重说明了采用数字频率综合器(DDS)和数字射频存储器(DRFM)方法模拟目标的速度和距离信息.该模拟器的实现可以方便地对目标信号进行模拟,同时也具有较高的模拟精度.