通过标度变换，引入t参量代替能级E和外电场F。
Through scaling transform, field F and energy level E are replaced by parameter t.
本文利用相对论变换关系计算了沿轴线方向匀速直线运动的电偶极子的电场。
This article calculated out the field intensity of a electric dipole uniformly moving along the axis of the dipole using the transformation relation in the relativistic theory.
根据舰船轴频电场信号的特点，提出了基于小波变换和神经网络的目标识别和分类方法。
According to the characteristic of shaft-rate electric field of ships, the recognition and classification methods of ship targets based on wavelet transform and neural network were proposed.
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