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- random phase distribution 周相的无规分布
- Any one of the CGH can act as the decoding key.Because the phase distribution on each CGH is a random one, it is very difficult to duplicate the identical decoding CGH. 可以将其中的一张全息图作为解码标准,从而依据是否可以与之共同解出某一特定的信息来判断全息图的真伪。
- Research on Subdividing Method for Random Phase Difference Fringe Signals[J]. 引用该论文 楚兴春;吕海宝;杜列波;周卫红.
- As a result, the random phase changes mentioned above occur much less frequently. 因此,上述的无规相位变化就很少出现。
- The paper presents encrpytion techniques of double random phase based on anamorphic fractional Fourier transform. 提出变形分数傅里叶变换双随机相位编码技术。
- Therefore the zero-correlation phase plates are more effective than random phase plates for speckles smoothing. 因而, 用零相关相位板匀滑散斑是一种更为有效的方法。
- The phase distribution of DOE is optimization result of iterative phase retrieval algorithm. DOE的相位分布由数值迭代相位恢复算法优化得到。
- 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。
- A nonintrusive 3D stereophotography method was designed to measure the phase distribution in bubbly flow. 设计了一种非接触式的三维照相法测量泡状流的相分布。
- This paper proposes a progressive approach algorithm based on image cost function to compensate the random phase error in SAR/ISAR imagery. 本文提出逐级逼近算法,基于图像评价函数,对SAR/ISAR中的随机干扰相位进行补偿。
- In order to determine the phase distribution of BOE, an immune genetic algorithm is adopted to design BOE. 为了得到二元光学元件的位相分布,采用免疫遗传对相位分布进行设计。
- The transformation of Hermite Gaussian laser beam through random phase plate is discussed in detail by partial coherence theory in this paper. 本文利用部分相干理论研究了高阶厄米-高斯光束通过随机位相片的变换。
- It has such features as high transportability, small volume, light weight and short time of phase distribution. 其特点是可移植性强、体积小、重量轻、布相时间短,并具有机内自检功能。
- The computation of harmonics superposition becomes more complicated when harmonic currents are caused by multi-harmonic sources at random phase angel. 大量的非线性负荷应用在农村配电网中,在农网中出现了多谐波源的现象。
- Cosecant Beam Generation Program for computing Phase distribution function and Radiation pattern. (译):余割波束生成程序的计算相分布函数和辐射模式。
- The nonlinear coupling equation between wave ensembles with three modes is derived by the random phase approximation and the zero dissipation limit. 然后,在零耗散极限和无规相位近似下,求得了不同模态波包的非线性共振耦合方程。
- The optimum solution has been adjusted to get the expected phase distribution of BOE, which can be easily made. 最后考虑到实际加工,对最优解做适当调整得到了更适合于实际加工的二元光学元件的位相分布。
- Effects of hard phase distribution in the alloy on boronization has been studied. 首次运用了我校研制的图片处理仪,分析了硼化物与大的WC粒子的相互作用。
- Given the same random phase, the simulation of the sixth grade and fifth grade track irregularity PSD of U.S. railways shows the level of difference between them obviously. 该方法还可对美国轨道线路五级谱和六级谱进行数值模拟,在随机相位一致的情况下,直观地反映出不同轨道线路谱等级在时域波形上的不平顺差异水平。
- Conventional optical information encryption system can be divided into three kinds: double random phase encryption, iterative phase retrieve algorithm and digital holography. 常见的光学信息加密系统可以分为三类,一类是典型的双随机相位加密;