一种应答式目标模拟器的设计与实现

Design and Implementation of the Responsive Target Simulator

为了对被试雷达进行干扰试验模拟,全面评价雷达抗干扰能力,设计实现了一种应答式目标模拟器系统。该系统主要由目标模拟单元、显示单元、天线系统等组成。目标模拟单元主要由频率源模块、微波接收模块、微波发射模块、中频处理模块和控制模块等模块组成。具体介绍了目标模拟单元、控制模块的模块化设计。测试结果表明,该系统的谐波抑制度、动态范围和发射功率均优于指标要求,系统工作性能稳定、谐波抑制和抗干扰能力强,具备较好的功能扩展性。

In order to conduct interference test simulation for the radar being tested, and comprehensively evaluate its anti-interference capability, the responsive target simulation system has been designed. The system is mainly composed of target emulating unit, display unit, and antenna, etc. The target emulating unit is composed of frequency source module, microwave receiving module, microwave transmitting module, intermediate frequency （IF） processing module, and control module, etc. The design of target emulating unit and control module is introduced concretely. The test results show that the harmonic suppression, dynamic range, and transmitting power are all better than the performance indexes requested. The system features stable operating performance, powerful harmonic suppression and anti-interference capability and possesses better functional expandability.