CAJ | 학술논문

无线系统作为火箭的关键分系统，其电磁兼容性制约了火箭的可靠性。以某固体火箭为例，通过仿真分析研究了天线的电磁辐射特性、无线设备间的耦合程度以及装舱后系统整体的电场分布，分析结果预示系统可能存在电磁不兼容趋势。基于仿真结果，设计实施了单机电磁兼容性验证试验、桌面散态系统试验（不含火箭结构影响因素）和系统匹配试验（含火箭结构影响因素），分别从设备级、桌面散态（分系统）级和全系统级依次验证了无线系统的电磁兼容性，得到了该火箭无线系统满足电磁兼容的结论。通过仿真与试验的结合，形成了火箭无线系统电磁兼容性研究方法。结果表明，研究方法可行，且具有较高的工程应用价值，可为复杂系统的电磁兼容性设计与验证提供参考。
무선계통작위화전적관건분계통，기전자겸용성제약료화전적가고성。이모고체화전위례，통과방진분석연구료천선적전자복사특성、무선설비간적우합정도이급장창후계통정체적전장분포，분석결과예시계통가능존재전자불겸용추세。기우방진결과，설계실시료단궤전자겸용성험증시험、탁면산태계통시험（불함화전결구영향인소）화계통필배시험（함화전결구영향인소），분별종설비급、탁면산태（분계통）급화전계통급의차험증료무선계통적전자겸용성，득도료해화전무선계통만족전자겸용적결론。통과방진여시험적결합，형성료화전무선계통전자겸용성연구방법。결과표명，연구방법가행，차구유교고적공정응용개치，가위복잡계통적전자겸용성설계여험증제공삼고。
As the key function subsystem, the electromagnetic compatibility ( EMC) performance of wireless system directly re?strictes the reliability of rocket. To investigate the EMC performance of wireless system of solid rocket, a research method was made. Firstly, the electromagnetic radiation characteristic of antenna, the coupling degree between wireless devices, and the whole E?field distribution of the system were respectively simulative analyzed. Then based on the simulation results, a prediction of the system having not achieve EMC was made. Secondly, a series of EMC tests of system were designed, including EMC validate tests, the ta?bletop dispersedly system EMC test ( without the influence of configuration) , and the system matching tests. The implement of these tests respectively validated the EMC performance of system at device level, tabletop ( subsystem) level and system level. Based on the test results, a conclusion that the system is EMC was obtained. Combined with the simulation and test results, the method is confirmed to be feasible, and valuable for engineering application,and is applicable for EMC design and validation of complicated system.