光栅数据是由覆盖空间区域的网格值所定义的非几何数据。
Raster data is non-geometric data defined by a grid of values covering a spatial area.
每组光栅的对比度、空间频率、显示时间，移动速度和反相频率能单独控制。
Contrast, spatial frequency, presentation time, moving velocity and phase reversal frequency of each grating are controlled independently.
在模拟分析的基础上，设计了一种基于应力、位移、空间角度的多参数可调谐的光纤光栅波长调谐器，并进行了实验验证。
The basic principles of multi-parameter tunable optical fiber grating wavelength tuner based on stress, displacement, space angle are analyzed and relative experimental researches are performed.
三色光栅是一种特殊的空间光调制器。
通过空间条纹的横向运动在探测器平面上转化为时间条纹通过光栅元件。
Convert the lateral movement of the spatial fringes across the detector plane into temporal fringes by use of grating elements.
探头以增量光栅为基础，确保在整个测量范围中最好的空间精度。
The probe is based on an incremental glass scale insuring the best dimensional accuracy over the whole measuring span.
本实验是利用两块空间频率相同的黑白光栅产生的莫尔条纹来测量长焦距透镜的焦距。
In this experiment, we use two gratings with the same frequency to generate Moire fringes and use them to measure the long focus length of lens.
为了实现管道机器人在工作时对自身位置的全程定位，提出了一种基于光纤光栅空间曲率传感器全程定位的递推算法。
A recurrence algorithm based on fiber Bragg grating curvature spatial sensor for total distance positioning of in-pipe robot was presented.
光纤光栅是利用光纤材料的光敏性，在纤芯内形成空间相位光栅，它可以改变光波在光导纤维中的传输路径。
Optical fibre grating utilize photosensitive characteristic to form the space phase grating in the core, it can change the transmission route of the light wave in the light-transmitting fibre.
可以用光栅、空间光调制器、计算全息、胶片作为滤波片。
Grating, spatial light modulator, computer - generated hologram and film can be used as the filter.
它在成像物镜的像方空间放置光栅，利用光栅的衍射原理，使来自参考物和被测物的光波在像面发生干涉。
Grating is placed in image space of objective lens, and used as the shearing part. Light wave from reference object and measured object interfered at the image space.
该装置可以显示水平光栅、垂直光栅和棋格信号，具有六档不同的空间频率、十二档时间频率、十二档视野范围和显示时间控制。
There are six grades of space frequency, twelve grades of time frequency, twelve grades of visual field and different showing-time for each patterns.
地理信息系统开发和优化的空间数据结构紧密，光栅和矢量数据之间的地理信息系统数据的有效转换的关键技术之一。
Geographical information systems development and optimize the structure of spatial data closely, raster and vector data efficient conversion of data between the GIS is one of the key technologies.
在第四章，根据标量衍射理论，首先讨论了两平面波干涉场的空间分布与平行投影正弦光栅的等价性。
In chapter 4, According to the theory of scalar diffraction, firstly, the equipollence of spatial distribution of the plane-wave interferential field and parallel projective sine grating is discussed.
拼接的每个光栅都存在五维自由度的偏差，对激光脉冲的空间特性和时间特性产生影响。
There are errors of five degrees of freedom between each adjacent pair of gratings within a tiled-grating system, affecting the spatial and temporal property of the laser beam.
用长光栅测弧长来实现角度测量的高分辨率要求，实现空间上的高精度定位。
And line grating is used to measure arc length in order to increase Angle measuring precision, thus high differentiate locating in space can be realized.
本文运用希尔伯特变换空间调制器使十字光栅一级衍射谱的强度分布用于精密定位。
Using a Hilbert transform Modulator, the intensity distribution of first-order spectrum of crossed-slit is used for accuracy positioning in practice.
目前报道的真延时结构有普通光纤延时线、色散光纤延时线、光纤光栅真延时、自由空间光学真延时、波导技术光学真延时等。
By now, There are many kinds of True Time delay schemes such as fiber delay line, fiber dispersion delay line, fiber grating prisms and ect.
利用单片透射型体布拉格光栅，我们设计了畸变激光束的空间一维滤波实验。
Using transmitting volume Bragg gratings (TVBG) as a basis, an experiment on one-dimensional spatial filtering of a deformed laser beam is designed.
采用基于内源信号的脑光学成像方法，在大范围视皮层研究了不同空间拓扑位置对应的皮层区的对光栅刺激空间频率反应特性。
Using optical imaging based on intrinsic signals, we studied spatial frequency tuning characteristics of cat primary visual cortex at different visual topological locations.
提出了用二维全息光栅制作自由空间光学时钟分布中的全息光学元件的方法。
A method of fabricating holographic optical element (HOE) for free-space optical clock distribution is presented.
首先，在三维空间内利用光线追迹法，对刻线不平行而光栅面平行时的压缩光栅对进行研究。
Firstly, the system of parallel grating pair, in which the grating grooves is unparallel while the grating surfaces is parallel, has been studied with the tri-dimensional ray-tracing method.
对投影光栅方法获得的位相调制空间载波图进行二维数字图象处理，实现了散射物体的三维曲面测量。
The shape measuring of a diffuse abject is conducted based on 2-D digital image processing phase modulated fringe pattern acquired by the projection of Ronchi rulings.
方法：在实验室搭建实验装置，分别利用矩形光栅法的实验装置和平板法视网膜MTF测量仪器，来测定正视眼组和屈光不正组的不同空间频率条纹分辨的阈值，算出并分析比较所测MTF值。
METHODS: Retina MTF of two groups of people with emmetropia and ametropia were measured by means of a grating and parallel plate respectively. Then the measured MTF were compared and analyzed.
方法：在实验室搭建实验装置，分别利用矩形光栅法的实验装置和平板法视网膜MTF测量仪器，来测定正视眼组和屈光不正组的不同空间频率条纹分辨的阈值，算出并分析比较所测MTF值。
METHODS: Retina MTF of two groups of people with emmetropia and ametropia were measured by means of a grating and parallel plate respectively. Then the measured MTF were compared and analyzed.
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