根据辐射理论重新设定了平面衍射物的边界函数，并以此条件推导了基尔霍夫衍射公式，并赋予新的含义。
Firstly according to radiation theory the boundary function of planar diffraction body is given, based on this condition the Kirchhoff diffraction formula is deduced and obtained.
本文根据边界波衍射理论分析了圆孔及相位片的衍射现象，得出其轴上光强的解析表达式，并对高斯光束经相位片衍射后的轴上光强进行了数值计算和讨论。
The diffraction phenomena by a circular aperture or a phase plate is analyzed by the boundary diffraction wave theory, the analytic expression of its axial intensity is obtained.
利用数值分析的方法分析了由边界波理论公式所得的圆形光阑衍射场的光强分布。
The light intensity distribution of diffraction of circular aperture was investigated by numerical analysis.
采用衍射强度阈值法对测试数据进行处理，使得缺陷边界清晰可辨。
In the present paper, threshold value method of diffracted intensity is put forward to process the test data, so the boundary of defect is legible.
结果表明，边界波处理方法中的基尔霍夫和瑞利-索末菲理论，分别与直边衍射的严格电磁理论解中的电场分布和磁场分布符合较好。
The field distributions given by Kirchhoff theory and Rayleigh-Sommerfield theory are studied respectively, and further comparisons with the exact electromagnetic theory are also given.
结果表明，边界波处理方法中的基尔霍夫和瑞利-索末菲理论，分别与直边衍射的严格电磁理论解中的电场分布和磁场分布符合较好。
The field distributions given by Kirchhoff theory and Rayleigh-Sommerfield theory are studied respectively, and further comparisons with the exact electromagnetic theory are also given.
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