摘要
为了对船舶静电场进行反演,提出了基于点电源的静电场深度换算方法.利用泰勒展开式的收敛半径对场源的个数和位置进行了准确计算,建立了空气-海水-海床三层模型中等效场源系统的线性方程组,通过对线性方程组的求解达到计算等效点源强度和船舶等效电偶极矩的目的.最后,利用Beasy软件计算的船舶电场信号作为仿真数据对所提方法的有效性进行了检验,结果表明:该算法计算量小,精度较高,能够实现对任意场点的电场进行换算.
In order to complete ship electric static field inversion work, a method is pro- posed based on the point charge source. Firstly, the number and accurate location of e quivalent source is calculated by using the Taylor expansion radius of convergence, and then, the linear equations in three layer model of air-seawater-seabed for calculating the equivalent point source and the vessel equivalent electric moment is established. Finally, the effectiveness of the method is verified by the Beasy simulation data, the results show that the algorithm is with high precision.
出处
《电波科学学报》
EI
CSCD
北大核心
2014年第4期685-693,共9页
Chinese Journal of Radio Science
基金
国家自然科学基金资助项目(51109215)
关键词
静电场
点电源
电多极矩
电偶极子
换算
边界元
static electric field
point charge source
electric multi-pole moments
electric dipole
conversion
Beasy
