基于两个特殊电场平面的目标定位技术

Target Localization Based on Two Particular Electric-Field Planes

针对水下目标物理特性被人为削弱或消除所造成的目标定位困难的问题,根据求解的混合电偶极子在海水中的电场分布的解析表达式,从理论上证明混合电偶极子的电场分布中两个具有重要实际意义的电场平面的客观存在,即电场垂直分量的过零面以及电场水平分量的极值面;并采用电磁场有限元分析软件Ansoft进行仿真,仿真结果与理论推导结果吻合,表明两个特殊平面的理论推导是正确的,可为利用这两个特殊电场实现目标定位奠定基础。

How to obtain target speed and location in the case of unknown equivalent electric field and un-known number of environment layers are studied in this paper. In the case of three-layer model, the analyt-ic expressions of the static electric field produced by the static mixture electric dipole source are derived using the mirror image theory. Then, the distribution characteristics of both fields are analyzed. The valida-tion of the two important electric planes have profound theoretical and practical significance, with the two planes being the zero plane of y component of electric field and the extreme plane of x component of elec-tric field. Finally, the presented theory is verified through the simulation in Ansoft. It is concluded that the target can be oriented by locating the zero plane of y component of electric field.