波阵面

AUV波阵面水声精确定位

Accurate AUV underwater positioning by wave front intersection

实验中采用红外技术、传感器技术、烟膜技术分别测量了正庚烷云雾引爆的延迟时间t（DDT），爆速D，爆压p和爆轰波阵面结构。

In the experiments , the ultra-violet technique . gauge technique and smoke film technique are adopted for the measurements of the delayed time t_ ( DDT ), velocity , pressure and wave front structure of the detonation .

相位恢复问题研究，对于天文、X射线相衬成像、衍射光学、波阵面重构和全息术等领域有重要意义。

The research of phase retrieval algorithm is important for many fields , such as astronomy , X ray phase contrast imaging , diffractive optic , holography , wave-front reconstruction and so on .

文中论述了基于Voronoi图理论的螺旋路径规划方法，主要内容包括：继承波阵面传播法思想的多连通域Voronoi图算法；

The ideas include : spiral scanning-path scheme based on a Voronoi diagram algorithm of multi-connected domain stemming from the wavefront-propagation ;

Tscherning波阵面像差仪测量眼高阶像差的临床研究

Clinical study of higher order wavefront aberrations with a Tscherning aberrometer

论述了基于Voronoi图理论的选择性激光烧结成型螺旋路径规划方法，主要内容包括：继承波阵面传播法思想的多连通域Voronoi图算法；内点判断、偏置线生成及螺旋扫描路径的生成。

The ideas presented here included : spiral scanning-path scheme that based on a Voronoi diagram algorithm of multi-connected domain that take its source at wavefront-propagation and the judgment of innermost-points and the offset approach were presented .

在实际水声环境中，信号波阵面在随机时变介质中传播，常常出现空间解相关，导致波向量谱以真正的信号到达方向（DOA）为中心的角扩展。

When signals propagate through the practical random time-variant medium , their wavefronts can show progressive losses of coherence with increasing spatial separation . These decorrelations of wavefronts result in an angular spread in the wavenumber spectrum centered about the true signal Direction-Of-Arrival ( DOA ) .

本文考察了由烧蚀稀疏形成的流体密度分布和烧蚀波阵面上非线性热传导效应对烧蚀波Rayleigh-Taylor不稳定性的影响。

In this paper , the influences of radiation heat conduction at the ablation front and distribution of mass density , which results from ablative rarefaction , on Rayleigh-Taylor instability of the ablative wave are examined .

Asclepion像差仪测量儿童波前像差的初步研究采用主观性波阵面像差仪对眼波阵面像差进行了测量与比较。

Measurement of Wave-front Aberrations in the Children s Eyes Using Asclepion Shack-Hartmann Aberrometer ; The wave front aberrations of complications undergoing LASIK was compared with uncomplications .

考虑到爆轰波阵面曲率及化学反应区宽度的作用，由修正Hugoniot关系式解析求解了波后状态，应用阵面追踪法（FTM）数值模拟了曲面散心爆轰波的传播。

Considering the curvature and width of reaction zones , FTM ( Front Tracking Method ) was used to study the propagation of diverging detonation waves . The parameters behind wave fronts were from modified Hugoniot relationships by neglecting narrow reaction zones .

本文基于FCT算法，编写了适用于空中爆炸载荷高精度数值计算的一维、二维、三维程序，它在空中爆炸冲击波阵面处达到四阶精度，而且耗用计算资源较少。

A high-resolution hydrocode including 1D ~ 3D , is presented for air explosion loading based on the FCT algorithm with fourth-order phase accuracy and minimum computing costs . A typical example of shock tube shows that the code is validity and accuracy .

本文导出了定态塑性波阵面上的粘性系数η的关系式，并利用它计算Barker从实验上给出的6061-T6铝中的定态塑性波阵面上的η值。

The expression of the viscous coefficient at the steady plastic wave front is derived in this paper . Using this expression , we have calculated 1 at the steady plastic wave front from the Barker 's experimental results of 6061-T6 Aluminum .

方法：40人77只正视眼及屈光不正眼，散瞳后用基于Tscherning原理的波阵面像差仪进行测量，记录高达6阶的波阵面像差Zernike系数和均方根值，并进行统计学分析。

Methods : Forty of cases 77 emmetropic and ametropic eyes were measured with an aberrometer based on Tscherning 's principle with the pupils dilated . The Zernike coefficients and root mean square values of wavefront aberrations up to the 6th order were recorded and statistically analyzed .

Fuks和Godin关于随机界面背向散射脉冲传播时间统计特性理论只适应于随机界面和波阵面up-crossing且界面高度-斜率不相关情形。

The theory of Fuks and Godin [ Waves Random Media , 14 , 539-562 ( 2004 ) ] on the travel-time statistics of backscattered short pulses from a random rough surface is only applicable to cases of " up-crossing " and where the surface elevation-slope is uncorrelated .

分波阵面造成的双光干涉的定域问题

On the Bi - beam Interference Localization of Component wave Fronts

波阵面声定向的实验研究

An experimental study for infrasonic location by using the wave fronts

各分波阵面干涉实验之间的差异

The Differences among The Various Interference Experiments by DiViding Wave Front

波阵面上发生的畸变生成了条纹线。

The resulting distortions in the wavefront generate the fringe contours .

单晶铜中冲击波阵面结构的数值模拟研究

Numerical Simulation of Shock Wave Structure in Single Crystal Copper

这种波阵面彼此间隔半个波长。

Such wave fronts are seperated from one another by one-half wavelength .

波阵面弯曲时层析投影变换卷积的推广

An Extended Version of the Tomographic Transform Convolution for the Wavefront Curvature

歼击机飞行员眼高阶波阵面像差的检测及对比研究

Ocular higher-order wavefront aberrations in fighter pilots and comparative study

用波阵面图分析光阑衍射及其实用性举例

Diffraction of Aperture Analyzed by Wavefront Diagram and Its Applications

波阵面像差技术在角膜屈光手术中的应用

Wavefront aberrations technique in cornea phototropism surgical operation of application

介质初始密度对波阵面辐射特性的影响

The effect of initial density on radiation characteristics of the wave front

经典光全息术包括波阵面记录和波阵面重现两步。

Traditional holography consists of wavefront recording and reconstruction .

冲击波阵面后温度的传导问题

Problem of heat conduction behind a shock wave front

波阵面像差技术在临床上的应用

Use of wave-front aberration techniques in clinical procedures

它从零值开始，并在稍后于波阵面处增长到最大值。

It starts with zero and grows to a maximum slightly behind the wave front .

当流体力学波阵面抵达周围介质时，它像一个运动迅速的活塞。

When the hydrodynamic front reaches the ambient medium it acts like a fast-moving piston .