基于LabVIEW的有源干扰信号实现

基于LabVIEW的有源干扰信号模拟器,能模拟产生战时各种有源干扰信号,用以检验测试雷达的抗干扰的能力。模拟器采用微型计算机+可编程逻辑器件(FPGA)+数字上变频(DUC)方案。通过计算机配合NI公司的数据收发中频卡,采用LabVIEW语言对中频卡内的FPGA进行编写,从而实现用FPGA进行数据收发,进而将数据送入数字上变频器,最终实现信号生成。选择射频噪声干扰信号进行模拟,实验结果表明,信号模拟效果好,适合于雷达抗干扰性能的检测。鉴于LabVIEW语言在编程方面的优越性,以及FPGA的灵活性,实现方法对于雷达信号模拟有较强的借鉴价值。

Implementation of active jamming signal based on LabVIEW

The active jamming simulator can generate all kinds of active jamming signals,which can be used to test the ability of resisting the noise.The simulator is made up of computer,FPGA and AD9857,the signal is generated by computer assorting with the intermediate frequency card receiving and sending data.RF noise jamming is selected to generate in the text,the result of the experiment indicates that the signal generated is good,and is fit for testing the radar’s ability of resisting the noise.The method to generate the signals is a new way,it is easier than other methods.