某型雷达自动测试设备的设计

Design of Automatic Test Equipment for Certain Guidance Radar

捷变频雷达具有频率快速跳变、不易被捕获而受到干扰的特点,以往对捷变频雷达的测试采用静态分析方法,不能反映雷达真实的工作状态;文章基于PXI总线构建新型捷变频雷达测试设备,通过研制一种能覆盖捷变频雷达的频率范围并自动跳频的信号源,实现了测试设备跟随雷达频率自动跳频进行雷达的自动测试,能真实反映雷达的工作状态;实验结果表明,系统检测与控制精度高,具有一定的实用性。

Frequency agility radar is a kind of guidance radar system, which has the characteristics of quick frequency agility and difficult being captured and disturbed. The traditional test of frequency agility radar is performed by static analysis method. It cannot give the true operation state of radar. A new test equipment is proposed in this paper based on PXI bus. By the simulator of signal source developed, which can cover the frequency coverage of frequency agility radar and hop frequency automatically, the radar can be automatic agility frequency tested by simulator following radar frequency. Based on the new simulator, the true operation of radar is given. The experimental results show that the automatic test system has high accuracy. The technology and methods adopted in the system are practical.