When diffraction problems are solved by the angular spectrum theory, high speed and high accuracy can be obtained, especially for near-field Fresnel diffraction.
用角谱理论来处理衍射光场，不仅速度快，而且在处理近场菲涅耳衍射光场时的准确度是其它方法无法比拟的。
参考来源 - 基于菲涅耳衍射的结构照明及其在三维传感中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
By use of the angular-spectrum analysis and the Fourier transform method, a correction method is obtained to describe the propagation of few-cycle pulsed beam with constant beam waist.
利用角谱分析和傅里叶变换的方法，得到一种描述几个周期的等束腰宽度脉冲光束传输的脉冲修正方法。
The angular spectrum method of plane electromagnetic wave propagation gives another explanation for wave propagation.
平面电磁波传播的角谱法，提供了波的传播过程的另一种解释。
Based on the vector angular spectrum representation of Maxwell's equations, the diffracted plane wave is decomposed into the te and TM terms.
运用麦克斯韦方程组的矢量角谱表述，将平面衍射波分解为TE项和TM项。
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