This is mainly influenced by the filtering process in Fourier plane and the low diffraction efficiency of the encoding grating.
说明傅里叶频谱面的滤波处理及编码光栅的衍射效率对图象输出信噪比的影响。
The frequency pseudocolor-coded speech spectrogram is then obtained by means of a sampling narrow slit placed at Fourier plane in white-light optical spectrum analyzer.
然后在白光光学频谱分析系统中，利用放置在傅里叶频谱面上的取样狭缝得到按频率假彩色编码的频谱图。
If all pictures are characterized by similar Fourier spectra, which have different scales, the optical fractal pattern can be obtained in the output plane.
如果所有的图像具有相同的傅里叶光谱特征，而这些光谱却具有着不同的尺度，在输出平面上便可获得分形图像。
With a phase grating located at Fourier frequency plane, optical image subtraction is obtained as a result of the coherent superposition of the zeroth and the first order of the diffracted light.
置一位相光栅于相干光学处理系统频谱平面，利用其零级与一级衍射光的相干迭加实现图象相减。
In this paper, the nonlinear transverse deflection or buckling is analyzed for unsymmetrical composite laminates under loads in plane by means of the generalized Fourier series method.
本文利用广义富里叶级数法对非对称复合材料层板在面内载荷作用下的非线性横向变形或屈曲问题进行了分析。
A stroboscopic microscopic interferometry based on Fourier transform method (FTM) is put forward to measure the out-of-plane motion of micro-resonator and micro-cantilever.
提出一种基于傅里叶变换的频闪显微干涉测试方法，对微谐振器和微悬臂梁的离面运动进行测试研究。
By using Fourier transform method, the Green function of a point harmonic force applied at a bi-material plane is obtained.
利用积分变换方法得出了两相材料中作用简谐集中力时的格林函数。
When the distance between positive and inverse Fourier transform system changes, the CCD is adjusted to the focal plane by variable value of interval between two peaks on CCD with computer.
通过镜组移动改变正、负傅里叶变换系统的距离，用软件比较CCD上两个波峰的间隔是否变化来对CCD进行定焦。
When the distance between positive and inverse Fourier transform system changes, the CCD is adjusted to the focal plane by variable value of interval between two peaks on CCD with computer.
通过镜组移动改变正、负傅里叶变换系统的距离，用软件比较CCD上两个波峰的间隔是否变化来对CCD进行定焦。
应用推荐