一种移动式强电磁脉冲干扰模拟试验系统的集成设计研究

摘要

Objective Based on the adaptability test requirement of radar pulse transient interference environment for ground platform system, a moveable intensive electromagnetic pulse interference simulation test system is studied. Methods System basic composition is studied, and the three key indicators affecting test system including test distance, transmit power and antenna gain are simulated and optimal designed.Results The output power of pulse amplifiers are all above 300kW. The field strength of test system is above 5000V/m at 5m distance, 2500V/m at 10m distance. Meanwhile the test system can meet the use requirements of movability and radiation area.Conclusion The signal form, output power of amplifier, VSWR, system match indicators of the test system are fully considered to ensure field strength distribution and radiation area. The technical parameters of the test system and the test conditions including implementation steps are accurately defined, and then the consistency and repeatability of test are greatly improved. At the same time, the test sys-tem can also be used in electromagnetic radiation hazard test of the ordnance system (EMRADHAZ).%目的 基于地面平台系统对雷达脉冲瞬态等强脉冲干扰环境的适应性试验需求,研究一种移动式强电磁脉冲干扰模拟试验系统的集成设计方案.方法 研究试验系统的基本组成,对影响试验系统指标的三个关键因素测试距离、发射功率和天线增益进行仿真分析与优化匹配设计.提出工程化的实施方案,并且完成试验系统的构建集成,对功率、场强等关键性指标进行实际测试验证.结果 脉冲功率放大器的功放在各频点的峰值功率均为300 kW以上.所构建的试验系统在5,10 m距离的场强分别大于5000,2500 V/m,达到设计指标要求,同时也满足移动性、照射区域等试验使用要求.结论 该测试平台全面考虑了信号形式、功放输出功率、信号驻波反射、系统匹配等条件,确保了高场强环境下场强量值分布、辐照区域大小等技术参数.可以准确量化系统测试的技术参数,明确定义测试条件及执行步骤,大幅提高了测试的一致性、重复性.同时兼顾考虑了进行军械系统电磁辐射危害(EMRADHAZ)试验的能力.