【摘要】 简述了二次雷达信号模拟器的构造原理以及相应的软、硬件设计，通过仿真计算机设置目标轨迹，得到目标的距离、方位、高度及其他信息，在信号模拟器的“询问”下，送出目标参数，模拟飞机对地面站的“应答信号”。这样，在两坐标一次雷达只能得到目标距离、方位数据的情况下，通过二次雷达而获得该目标的高度及其他信息，从而得到目标的完整信息更多还原

【Abstract】 The paper describes the structure of secondary surveillance radar(SSR) signal simulator with the design of hardware and software.The target′s range、azimuth、altitude and other information can be achieved by setting the target′s trajectory in the emluator.When the simulator interrogates,the emluator sends out the target′s parameters and the simulator simulates the transponding signal and the target plane replies to the interrogator on the ground.With the target′s range and azimuth the primary Radar measures,and the target′s altitude and other information the SSR supplies,the entire information of the target can be taken.更多还原