针对传统的高度模拟信号无法叠加各类干扰信息的问题,提出了一种基于数字射频存储技术的无线电高度表干扰信号产生方法。该方法利用DRFM能有效存储并完整复制射频信号的频率和相位等细微特征的技术特点,产生对多种体制无线电高度表的各类干扰信号。仿真结果和试验测试表明,该方法产生的干扰信号满足无线电高度表抗干扰性能测试需求。

A method of generating the interference signal for radio altimeter which based on the digital radar frequency memory technology was exposed. The traditional simulating signal can not superimpose various interference information. Using the technical characteristics of DRFM which can effective storage and copy the frequency and phase of the signal, many kinds of radio altimeter interference signals had been produced. By the simulation results and experimental tests, the interference signal can meet the anti-interference ability testing of the radio altimeter.