CAJ | 학술논문

连接电子系统的线缆能够将电磁脉冲能量耦合至系统的内部电路，造成系统性能降级、损伤甚至烧毁，带来极大的危害，因此开展线缆的电磁脉冲效应研究工作是采取针对性电磁防护措施的必要前提。以高空核爆电磁脉冲（HEMP）为入射源，基于时域有限差分（FDTD）方法和Noda细线模型建立仿真空间和计算模型，分析计算了不同状态下接地线缆的HEMP电流响应。结果表明，接地线缆的响应电流在振荡过程中迅速衰减，且在较高位置处峰值较大；波源入射方向的改变会产生不同的响应结果，线缆响应电流主要来自与其布设方向一致的电场分量的激励。所得结论能够为线缆的电磁防护提供有益指导。
련접전자계통적선람능구장전자맥충능량우합지계통적내부전로，조성계통성능강급、손상심지소훼，대래겁대적위해，인차개전선람적전자맥충효응연구공작시채취침대성전자방호조시적필요전제。이고공핵폭전자맥충（HEMP）위입사원，기우시역유한차분（FDTD）방법화Noda세선모형건립방진공간화계산모형，분석계산료불동상태하접지선람적HEMP전류향응。결과표명，접지선람적향응전류재진탕과정중신속쇠감，차재교고위치처봉치교대；파원입사방향적개변회산생불동적향응결과，선람향응전류주요래자여기포설방향일치적전장분량적격려。소득결론능구위선람적전자방호제공유익지도。
The cable connecting the information systems may be coupled by the electromagnetic pulse energy to the internal cir-cuit,resulting in system performance degradation,damage and even burned,and bringing great harm. Therefore,the work to research cables’ effects under electromagnetic pulse is the precondition to take electromagnetic protective measures. The finite-difference time-domain ( FDTD) method and Noda thin models are used to establish the space and computational model with high-altitude nuclear elec-tromagnetic pulse (HEMP) as the incident source,the grounding cable HEMP current response in the different states is analyzed and calculated. The results show that the response current of grounding cable attenuates rapidly in the oscillation process with a large peak at a position higher;the incident direction changes of the wave source can produce different results in response,and the response current mainly appears from the cable laid in the same direction with the electric field excitation component. The conclusions can provide useful guidance for the cable electromagnetic protection.