本文讨论了弱光反馈对相干光差分相移键控系统误码率的影响。
The effects of weak optical feedback (WOF) on the bit error rate (BER) of coherent optical differential phase shift key-controll (DPSK) systems are presented.
利用激光激发声表面波及光差分技术研究激光源对声表面波的影响。
A laser generation and optical difference detection method of surface acoustic waves (SAW) is used to study the influence of laser source on SAW.
集油盒侧面设有观察窗，可光差集油盒内集油量，当集油盒内残油积满可随时放出。
Oil gathering box side with observation window, the observable oil gathering box sets the amount of oil, when residual oil of oil gathering box is thick, it may at any time release.
利用激光激发声表面波及改进的光差分检测技术，研究沉积在基片表面的薄膜样品的特性和参量。
A laser generation and modified optical difference detection method of SAW for studying the characters of thin films deposited on substrates is introduced.
在全局对齐中，则是使用基于光差的全局优化方法在子像素级进行精确对齐，由于初值准确，因此全局算法能迅速收敛。
In the process of global alignment, because the initial value generated by the local alignment is close to the optimum one, the iterated algorithm could converge quickly.
对于电流纵差保护在应用中会遇到的几个主要问题，结合光差保护现场的一些实际工作，以RCS-931 保护装置为例进行了分析。
Several questions are discussed in applying the digital phase segregated current differential protection based on RCS-931, and debug the equipment in worksite.
对于光顺算法，本文中不采用光顺平铺边界，而是采用光顺权值差2的内部边界。
The interior boundary with the difference of fairing power being 2 replaced the paving boundary in the fairing step.
光眼的安装也很灵活方便，对眼相对容易，调整容差比较大，牢固性强不易脱落。
Light eye installation is also very convenient, the eye is relatively easy to adjust, tolerance is relatively large, strong firmness is not easy to fall off.
我要锻炼身体了，最近身体越来越差，一到冬天就光感冒，那种滋味只有自己知道。
I want to exercise, most recently health is becoming worse every winter is cold, that kind of light taste only oneself know.
自由旋涡气动窗口是利用流体微团作自由旋涡运动的离心力来平衡大气与光腔压力差，来作为高能激光束的输出窗口。
The free vortex aerodynamics window is used to be the window of high power laser beam, which takes advantage of the centripetal force of the free vortex motion of fluid.
基于有限差分光束传播法，对侧边抛磨光纤的光传输特性进行了模拟计算。
Based on beam propagation method, analysis and simulation on optical propagation characteristics of side-polished fiber have been made.
实验测得的延时与相邻子阵对应的光载波的波长差以及光延迟线的长度线性相关，这与理论分析一致。
The measured time delay responses are nearly linear with the wavelength spacing between optical carriers as well as the lengths of FDLs, which agrees well with the theoretical analysis.
本文研究了背景相减算法、差分法、基于光流场的运动估计和基于主动形状模型的目标跟踪算法。
In the thesis, the algorithm of background subtracting, frame difference algorithm, motion estimation based on optical flow field and object tracking based on active shape contour are investigated.
它主要由二次谐波产生、和频产生、差频产生、光参量振荡等构成。
It mainly consists of harmonic generation, sum-frequency generation, difference-frequency generation, optical parametric oscillation and etc.
为提高计算效率，采用了多重网格法、当地时间步长和残差光顺等加速收敛措施。
Residual smoothing, local time stepping and a new multi-grid scheme were employed to improve calculative efficiency and accelerate the convergence.
解决了X光片光学标记摄影机由于暗盒厚度差所引起的开盖困难和导致光学成像质量不稳定的问题。
The instability of optical image of X ray film optical mark camera caused by the different thickness of dark cassette is resolved.
根据波导间相互耦合与自映像原理，采用时域有限差分法分析了该器件的光传输特性。
The optical propagation properties of the device have been demonstrated by finite difference time domain method according to the waveguides directional coupling and self-imaging principle.
由于电信号传输系统保密性和抗干扰能力差，为此，利用声光晶体的衍射效应研制了一种光信号自由空间传输系统。
To resolve this problem, a free space transmission system for optical signals is developed on base of diffraction effect of acoustooptic crystal.
介绍了利用双光路差分吸收光谱(DOAS)技术监测大气气溶胶并反演其粒谱分布的新方法。
With the method of differential optical absorption spectroscopy (DOAS), aerosol along the light path is monitored and its size distribution is measured with double optical path method.
混合集成光学加速度计是一种实用型的实时加速度传感器，在信号处理过程中采用了光相位调制和交流相位跟踪零差补偿技术(PTAC)。
The hybrid integrated optical accelerometer is a kind of practical accelerometer, which adopts optical phase modulation and alternating current phase tracking and homodyne compensation scheme (PTAC).
用时域有限差分法研究了同一材质的颗粒在不同填充密度下的随机介质中光局域化问题。
The problem of light localization in two-dimensional random media with different filling densities of the same material particles is studied by use of the finite difference time domain method.
本差分构型光路简单，容易实现样品池和参考池的定位与调整。
This configuration of the optical system is simple , and, the adjustment of the sample and the reference cell is achieved easily.
本文报道了空间差分光调制反射光谱，指出了它与常规光调制反射谱的区别。
In this article, we report another form of photoreflectance spectroscopy-space differential photoreflectance (SDPR) spectroscopy.
介绍了计算加速方法，包括隐式残差光顺和全多重网格方法；
Then, the accelerating computational methods including implicit residual smoothing and full multigrid strategy were presented.
在对帧间差分算法进行分析的基础上，建立了基于帧间差分算法的目标探测识别系统，提出了针对该算法的脉冲光干扰方法。
The moving target detection method based on the three frame difference and background difference method was proposed, which is simply and fast to realize.
天然食用色素的优点在于其安全性，缺点是其稳定性差，易受光、热、空气和金属离子的影响而变色或褪色。
The natural food pigments are safe, while their stabilities are bad. They are easy to change their color or fade when they are exposed to light, heat, air and metallic ions.
在光弹性贴片法中，通常利用剪应力差法和斜射法来分离主应变。
In the photoelastic coating methods, the shear stress difference and slant incident approaches are often used to divide the main strains.
在光弹性贴片法中，通常利用剪应力差法和斜射法来分离主应变。
In the photoelastic coating methods, the shear stress difference and slant incident approaches are often used to divide the main strains.
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