直接电流注入与自由场照射之间等价性的评估  

The Equivalence Between Radiated Electromagnetic Fields and Direct Current Injection

作　　者：徐加征[1] 蒋全兴[1] 王巍[1] 

机构地区：[1]东南大学电磁兼容研究室,南京210096

出　　处：《宇航学报》2006年第2期268-271,275,共5页Journal of Astronautics

基　　金：国家自然科学基金资助(50277007)

摘　　要：介绍了直接电流注入技术在导弹EMC测试中的研究与实践。这项研究主要有两个方面,一个方面是直接电流注入,其中导弹作为同轴传输线的内导体,激励直接注入到导弹壳体上;另一方面是导弹的自由场照射。文中通过理论计算与试验测试,对直接电流注入和自由场照射之间的等价行进行了评估。400MHz以下,DCI技术和自由场照射之间有很好的相关性。提供了高场强安全裕度测试工具的一个替代技术:直接电流注入技术。This paper described a study carried out within EMC Lab Southeast for Current Injection techniques used in a missile＇ s EMC-tcsdng. Two ideas were given in this paper： Direct Current Injection, in which the missile was the centre conductor of a coaxial transmission line, and radiated electromagnetic field driven by a plan wave. Direct Current Injection as a substitute for direct illumination of the missile in free space was assessed on the basis of results. Under 400MHz, the direct current injection technique can be used. Direct current injection technique as a subsitute of high intensity radiated field test can be applied to EMC test.

关 键 词：直接电流注入 高场强辐射场 时域有限差分法 导弹 电磁兼容测试 

分 类 号：TN97[电子电信—信号与信息处理]