The critical part of this sight is a holographic optical elements combined with a lensless Fourier transform hologram and a holographic beam transformer.
瞄准具的核心部件是由一块无透镜傅里叶变换位相全息图和一块全息光束变换器组成的全息光学元件。
The OTF (Optical Transfer Function) of an optical system can be evaluated by the Fourier Transform of the first derivative of the optical image of an knife-edge (object).
对光学系统输出刀口像的一阶导数做傅里叶变换，可以得到该系统的光学传递函数（OTF）。
Neither the coherent optical input image nor the Fourier transform hologram of the reference image is required by this system.
这个系统既不需要相干光输入图像，也不需要基准图像的付氏变换金息图。
Information processing of optics is really carried out on the optical information process system, the most basic key part is Fourier transform lens.
光学信息处理实现是在光学信息处理系统上进行的，系统的最基本最关键的部件就是傅里叶变换透镜。
Fourier transform lens is key operating element in optical information processing system.
在光学信息系统中，傅立叶变换透镜是关键的运算部件。
The fractional Fourier transform contains the spatial information and the spatial-frequency information simultaneously. The fractional correlation can be used to optical pattern recognition too.
分数傅里叶变换同时包含了空间域和空间频率域信息，分数相关也可以用于光学图样识别。
A new optical image encryption method using anamorphic fractional Fourier transform and double random phase encoding is proposed.
提出一种利用变形分数傅里叶变换和双随机相位编码对图像加密的方法。
A new optical image encryption method using dissymmetrical fractional Fourier transform and double random phase encoding was presented.
提出了一种利用不对称分数傅里叶变换和双随机相位编码对图像加密的方法。
The results show that we can conveniently control the intensity distribution of the partially coherent flat-topped beam by use of the fractional Fourier transform optical system.
结果表明，使用分数傅立叶变换，我们可以方便地控制部分相干平顶光束的光强分布。
The watermark can be retrieved by using either optical or digital Fourier transform on halftone images containing the watermarked information.
水印的提取过程只需对含有水印信息的半色调图像进行光学或数字的傅里叶变换即可完成。
Spectral resolution of optical fiber Fourier transform spectrometer depends on maximum optical path difference (OPD).
光纤傅里叶变换光谱仪的光谱分辨率是由最大光程差决定的。
The general consideration, design of optical and mechanical structure for an inner attenuation total reflection (ATR) instrument used in infrared Fourier transform spectroscopy were introduced.
介绍了傅里叶变换光谱仪的衰减内全反射装置(atr)的基本原理、光学和机械结构设计。
Fourier transform profilometry is one of the most popular active 3d optical measurement methods, with the advantage of high accuracy and fast acquisition speed.
傅里叶变换轮廓术是属于主动式光学三维测量方法中的一种。其测量精度较高，且数据采集速度快。
The Fourier transform profilometry as an active optical 3d shape measurement technology has been widely concerned because it need only one deformed grating image to make full-field analysis.
而傅里叶变换轮廓术作为一种主动光学三维形貌测量技术，因其只需要一幅变形光栅图样来做全场分析的优点，而受到人们广泛关注。
A new optical encryption technique based on double random phase computer-generated hologram of asymmetry fractional Fourier transform is presented.
提出了一种利用不对称分数傅里叶变换和双随机相位编码对图像加密的方法。
The calculations are based on optical constant data derived from measurements by dispersive Fourier transform spectroscopy.
计算基于由色散傅里叶交换光谱测量结果推导出的光学参数。
The nonlinear problem of optical path difference (OPD) of rotating Fourier transform spectrometer universally exists, produced by the rotation of rotating mirror.
转镜的转动会导致光程差存在非线性问题，是转镜式干涉光谱仪普遍存在的问题。
High-speed rotary Fourier transform spectrometer has nonlinearity of optical path differences (OPD) because of refractor's rotating.
转镜式傅里叶光谱仪中，转镜的转动形成光程差的非线性。
Couplers are key components in an optical fiber Fourier transform spectrometer (FFTS).
光纤耦合器是全光纤傅里叶变换光谱仪(FFTS)的关键元件。
Couplers are key components in an optical fiber Fourier transform spectrometer (FFTS).
光纤耦合器是全光纤傅里叶变换光谱仪(FFTS)的关键元件。
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