CAJ | 학술논문

用麦克斯韦方程推导了船舶尾流感应电磁场的两层模型计算公式，并对船舶尾流感应电磁场的特性进行了仿真分析，重点分析了尾流感应电场的水下特性。仿真结果表明：感应电场信号在水下具有频率低、距离越远幅值衰减速度越小、功率谱为线谱的特性，因此可用于船舶的远程水下探测。实测船舶电场数据表明：船舶尾流感应电场是可测的，有明显的低频特性，实测数据的量级和功率谱均与理论模型基本一致，证明了该理论模型的正确性。
용맥극사위방정추도료선박미류감응전자장적량층모형계산공식，병대선박미류감응전자장적특성진행료방진분석，중점분석료미류감응전장적수하특성。방진결과표명：감응전장신호재수하구유빈솔저、거리월원폭치쇠감속도월소、공솔보위선보적특성，인차가용우선박적원정수하탐측。실측선박전장수거표명：선박미류감응전장시가측적，유명현적저빈특성，실측수거적량급화공솔보균여이론모형기본일치，증명료해이론모형적정학성。
Maxwell equations are used to derive a two-layer mathematical model of the induced electro-magnetic field associated with ship wakes .The model is applied to the simulation and analysis of the features of the field ,especially to its underwater features .The result shows that the induced electric field signals have low decay rate ,low frequency and unique spectral peak ,w hich are significant for a ship to carry out a remote underwater detection .The comparative study of the real electric field sig-nals and the theoretical date shows that they are consistent in the magnitude ,trend and power spec-trum and that the model is correct .