We adopted Gaussian beam, ray tracing and vector diffraction integration together to analyze single beam spot-focusing lens antenna.
本文采用将高斯波束法，射线追迹和矢量衍射积分相结合的方法来分析单波束的点聚焦透镜天线。
For infrared optical systems a point spread function is calculated in terms of the spot diagram obtained through geometrical ray trace or the theory of Kirchhoff diffraction.
对红外光学系统，用几何光线追迹得到点列图或用基尔霍夫衍射理论计算得到点扩散函数。
The relation between output correlation spot shape and length width ratio of input correlation image was analyzed quantificationally by using of diffraction theory in the joint transform correlation.
根据联合变换相关理论和光的衍射理论，定量分析了联合变换相关中两相关输入物长宽比与输出相关点形状间的关系。
The experiments , comparison and analysis for the three thickness measurement methods :two-beam diffraction method , contamination spot method and contamination line method were carried out.
前言：对用电子显微镜测量薄膜厚度的三种方法：双束衍射法、污斑法、污线法进行了实验及比较分析。
Based on the diffraction imaging theory, we developed an analytical formula of Verling Glare Index of optical system by "balck spot" method.
根据光学衍射成像理论，建立了黑斑法测量光学系统杂光的杂光系数解析式。
The straight-edge diffraction of this parallel beam superposing on the light spot constitutes the so-called M-line.
这束平行光的直边衍射花纹与光斑本底叠加的结果在观察屏上形成为通常所称的M线。
In Fraunhofer diffraction area, the spot center is light spot, around encircle light and dark ring.
在夫琅和费衍射区域内，光斑图像中央是亮光斑，周围环绕着明暗交替的圆环。
The results show that not only diffraction efficiency and SNR but also storage density and data rate can be increased by reducing the spot size on the crystal surface of the incident beams.
结果表明减小辐照在晶体上的光斑尺寸不仅能提高衍射效率和信噪比，而且可以提高存储密度和数据率。
This paper describes two microcomputer programs of electron diffraction spot patterns.
本文介绍了两种电子衍射花样的微型机分析程序。
Zero-order diffraction light spot can influence the detection of the correlation peak in joint transform correlator.
联合变换相关器的零级衍射光斑会影响相关峰探测。
Highly visible stationary laser diffraction patterns from liquid surface waves at a few tens Hertz were obtained experimentally, and the disappearance of zero order diffraction spot was also observed.
对于频率为几十赫兹的液体表面波，实验上观察到稳定、清晰、反衬度非常高的衍射图样，并发现了零级缺级现象。
Then the diffraction spot size is decreased, and the optical resolution is increased, so the accuracy of the fine tracking system is improved.
由此减小接收衍射光斑的大小，提高系统的光学分辨能力，从而提高精跟踪系统的精确性。
Limited by diffraction effect, the size of focused IR spot is usually larger than the pixel pitch of FPAs, hence the crosstalk testing is quite difficult.
受衍射效应的限制，聚焦红外光斑的尺寸往往大于焦平面阵列像素尺寸，串音测量遇到了极大困难。
Limited by diffraction effect, the size of focused IR spot is usually larger than the pixel pitch of FPAs, hence the crosstalk testing is quite difficult.
受衍射效应的限制，聚焦红外光斑的尺寸往往大于焦平面阵列像素尺寸，串音测量遇到了极大困难。
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