The near-axis field distribution of circular aperture antennas is obtained by numeric integration method.
采用数值积分方法分析了圆口径天线非轴向近场分布特性。
The light intensity distribution of diffraction of circular aperture was investigated by numerical analysis.
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。
Through theoretical analysis, a deeper physical intension of the Freshal circular aperture diffraction is revealed.
通过理论分析，揭示出菲涅尔圆孔衍射更深刻的物理内涵。
The experimental demonstration of the little-size serrated aperture instead of circular aperture in the laser system is given.
报道了在光路中使用小尺寸波纹光阑代替圆孔光阑的研究结果。
This is not the star's disk you are seeing but the effect of having a circular aperture in your telescope and due to the nature of light.
这不是星星自身的光环，而是由于望远镜的圆形孔径光阑以及光的物理特性造成的。
The formulas of coupling through circular aperture on the common wall between striplines are presented by a small aperture coupling theory.
根据小孔耦合理论给出了带状线间通过公共壁上圆孔耦合的耦合度表示式。
The near field properties of circular aperture antennas with Gaussian amplitude distribution are analyzed by the aperture field integration method in this paper.
采用口径场法对具有高斯幅度分布的圆口径天线辐射近场进行了分析。
It is proved that a small circular aperture has the positive and minus focal distances, and the research experiments for small aperture glasses are introduced concisely.
提出了证明小圆孔具有正、负焦距的一种方法，简要地介绍了关于小孔眼镜的实验研究。
An analytic expression for the intensity of the central point in Fresnel's circular aperture diffraction was derived using the methods of vector map and integration respectively.
分别用矢量图解法和积分法导出了菲涅耳圆孔衍射中心场点的光强的解析表示，方便了此类问题的分析。
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.
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 theoretical analyses show that the phenomena of drastic spectral changes were also found in Fraunhofer diffraction of a circular aperture and Young's double-slit interference experiments.
理论研究表明，在经过圆形光阑的夫琅和费衍射实验和杨氏双缝干涉实验中，衍射光场的归一化光谱都发生了剧烈的变化。
While the modulation characteristics disappear as the outer circular aperture is bigger than 1.5 times of the beam waist size, the results offer reasonable aperture parameter for diffraction.
当外孔大于1.5倍束腰时，衍射后轴上光强调制被有效压抑，这为选择光阑提供了合理参数。
A general diffraction formula for circular apertures is derived. This formula is not limited by the aperture radius and the distance from the screen and can be used as a theory of near field optics.
推导了圆孔衍射公式，该公式不受孔径大小和到屏距离的限制，可以作为近场光学的理论。
Based on the accurate expression of light intensity at transverse plane, the propagation characteristics of monochromatic planar wave diffracted by small circular aperture are analyzed in this paper.
采用横截面上光强的精确表述，分析了单色平面波微小圆孔衍射后，其衍射光束的传输特性。
It is discorered that circular hole diffraction and circular disk diffraction pattern in large aperture convergent beam are different from those of general Fresnel diffraction.
实验中发现，经常使用的大孔径会聚光束的圆孔和圆屏衍射图样不同于一般的菲涅耳圆孔和圆屏衍射图样。
If the aperture is circular, a circular spot of light appears on the screen.
如果孔是圆形的，那么在屏幕上出现一圆形光斑。
Utilizing convergent beam of large aperture can realize inversion of circular hole diffraction and circular disk diffraction.
利用这种光束可以对微小的衍射物体进行反演放大。
With the same condition, such as the number of sensors, array aperture and the interested directions are the same, the uniform circular array performs the best.
在阵元个数相同、阵列孔径一致以及考察方向为全向的条件下，对比各个阵列的测向模糊和精度，最终得到圆阵为最优阵列形式的结论。
With the same condition, such as the number of sensors, array aperture and the interested directions are the same, the uniform circular array performs the best.
在阵元个数相同、阵列孔径一致以及考察方向为全向的条件下，对比各个阵列的测向模糊和精度，最终得到圆阵为最优阵列形式的结论。
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