辐射式雷达目标回波模拟技术

辐射式雷达目标回波模拟,其目的在于构建一个支持雷达全系统进行试验或训练的目标环境。针对搜索雷达,提出了基于旁瓣注入的辐射式雷达目标回波模拟方法,即对回波模拟设备接收存储的雷达射频信号进行辐射时机控制、功率调制和频率调制,以形成模拟回波并从雷达天线旁瓣注入雷达。该方法不但能够模拟目标径向运动,而且能够模拟目标在一定方位范围内的切向运动,适用于外场条件下的雷达模拟试验。最后以某型搜索雷达为例,通过计算机仿真验证了方法的可行性。

Radiation Simulation Technology of Radar Target Echo

Radiant echo simulation of radar target is intended to construct a target environment which support testing or training entire radar system.In allusion to search radar,a method of infusing radiant simulation echo into radar from side beams of radar antenna is brought forward.In the method above,control for radiation timing,modulation for radiation power and modulation for Doppler frequency shift on radar RF signals received and stored in the simulation device are adopted for forming target echo,and the echo is infused into radar from side beams of radar antenna.Not only radial movement of target can be simulated depend on the new method,but also the tangential movement in a range of azimuth.The method advanced can be used in the simulation test for radar in the outfield.A simulation instance for one type of search radar is completed in computer,and the results of the simulation validate the feasibility of the method.