scanning aperture

Optimal stitching algorithm is extremely important for testing large-aperture aspherical optical elements by annular-aperture scanning technique.

优化的拼接算法是环形子孔径扫描测量大口径非球面光学元件的关键问题.

investigation of white-light speckle interferometry with radial scanning aperture

孔径径向扫描白光散斑干涉法的研究

In the focusing and imaging process of the GSJ model scanning camera, a light aperture is usually used as an imaging slit and then replaced by a graticule in situ.

在GSJ型相机聚焦成像过程中，通常先用光孔对象，然后再放上分划板照像。

Quantizing aperture low velocity beam scanning image pickup tube

电视摄像管电子束孔低速电子扫描摄像管

Under the condition of the same number of elements, the aperture of sparse antenna array is larger than uniform antenna array with the same geometric structure. So sparse antenna array has more narrow scanning beam and better spatial resolution.

当阵元数目相同时，稀布阵列比具有相同几何结构的均匀阵列拥有更大的孔径，从而得到更窄的扫描波束，提高了阵列的空间分辨率。