The space harmonicexpansion technique is used for analyzing the 3d magnetic fields of the deflection yoke.
研究了显像管等器件中偏转线圈三维磁场的空间谐波展开技术及其计算。
2
Representing velocities by spherical harmonicexpansion on the sphere after transformation can greatly reduce the number of spherical harmonic coefficients needed.
在变换后的球面域上用球谐函数来拟合速度函数，达到降低球谐系数阶数的目的。
3
A harmonic surface charge method, which combine surface charge method with space harmonics expansion, was developed for the calculation of 3d magnetic fields of deflection yoke.