查询词典 wave front

The system of digital holographic wave-front reconstruction is studied based on Abbe imaging principle.

基于阿贝成像理论对数字全息波面重建系统进行研究。

Creative research has been carried in the technologies of temporal pulse shaping, spatial intensity shaping, angular spectrum dispersion, and wave front control, which cover four parameters of time, amplitude, spectrum and phase that describe the characteristics of a laser beam.

以表征激光束特性的时间、振幅、光谱、位相等四个信息参量为对象，创新性地研究了脉沖时域整形技术、光强空间整形技术、光谱角色散技术和波前控制技术。

We firstly bring forward and realize technologies of arbitrarily shaping laser pulse in the time domain by chirped pulse stacking, programmablely shaping spatial intensity by crystal liquid diaphragm, focused spot smoothing using angular spectrum dispersion by special gratings and detecting and compensating the small patch wave front aberration. Precise, programmable, efficient and \'all parameters\' condition of high power laser system has been obtained.

首次提出并实现了啁啾脉冲堆积型的时间波形任意整形；液晶光阀可编程光强空间整形；特殊光栅光谱角色散焦斑束平滑和小尺度波前畸变的探测和补偿，从而对高功率激光系统的激光束实现了高精度、可编程、有效的"全息"控制。

The systolic array processor is a parallel processor which is suitable for wave-front operations.

脉动阵列机是一种适合于波前处理运算特点的并行计算机。

Under some reasonable assumptions of the'Distribution Matrix', the Riemann Problem with piecewise constant initial data is proved to have a unique Riemann Solver; furthermore, using'Wave Front Tracking Method'and properties of the'Generalized Characteristics', we prove the existence of weak entropy solution to the Riemann Problem with arbitrary initial data of bounded Total Variation.

在"分布矩阵"满足合理的假设前提下，证明了具有分片常值初始条件的黎曼问题的黎曼解算子的存在唯一性；并进一步运用"波前追踪法"和"广义特征"等得到了具有任意有界全变差初值条件的广义黎曼问题的弱熵解的存在性。

Consequentially, it is significant to develop wave-front processors with highly comprehensive performances.

因此，研制综合性能更强的波前处理机，对自适应光学技术的发展具有重要意义。

Digital holography ; Microscopic digital holography ; Wave front reconstruction ; Fresnel approximation ; Convolution method ; Angular spectrum theorem

数字全息；显微数字全息；波前重建；菲涅耳近似；卷积法；角谱方法

In addition we establish a new moving coordinate system in the neighborhood of the wave front and obtain a revised eikonal equation describing the curvature effect of waves in the usual orthogonal coordinate system.

由此我们获得了二维和三维情形下靶型波的具体形式。对三维涡卷波和V-形波，我们也给出了它们的具体形式。在第四章，我们应用摄动方法，较简捷地获得了组织中心沿径向和轴向的运动规律。

Uses completely imports the thermostable nylon (PA66) raw material to add the fire protection textile fiber fine note to become again, has does not plate the electricity, artistic, thermostable and the antiseptic property is good, can when welds and the wave front welds the body had guaranteed that does not distort on machine the board not crookedly, quality assurance, reasonable price!

全部采用进口耐高温尼龙（PA66）原料再加防火纤维精注而成，具有不镀电、美观、耐高温及防腐性能好，能在焊接及过波锋焊时体保证在机板上不变形不歪斜，固定在PCB板上！质量保证，价格合理！

Such lensed fiber tip corrects for the phase front mismatch between the curved laser beam wave front and the planar fiber beam.

本文研究的透镜光纤主要是楔形柱透镜光纤，它的作用是修正激光光束波前和从光纤出来光束之间的相位失配。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。