phase fluctuation

Distribution model for wave phase fluctuation of laser beam in atmospheric turbulence

激光大气传输相位起伏分布

Effect of phase fluctuation of light field on quantum coherence in a trapped ion

辐射场的起伏对囚禁离子的量子相干性的影响

Our research shows that the phase fluctuation of the driving field will results in a finite line width ;

研究结果表明，驱动场位相涨落将导致有限线宽；

The different roles of the phase fluctuation and amplitude fluctuation have been pointed out in the time domain .

在时间领域指出了相位涨落和振幅涨落的不同作用。

While for colored phase fluctuation , the number of extremum in the steady state distribution is changed from one to three directly .

而色噪声位相涨落情形下，定态分布函数的极值点由一个直接变为三个。

Compared with other technique , TTIB suppresses both the random amplitude and phase fluctuation in received signal .

与其它的抗干扰技术相比，TTIB可同时抑制接收信号的随机振幅和相位的干扰。

A FFT ( Fast Fourier Transform ) based algorithm for frequency measurement of power system taking amplitude and phase fluctuation of signal into consideration .

提出一种基于快速傅里叶变换FFT（FastFouriertransform）准确测量系统频率的算法，并考虑了被测量系统频率的电压信号有效值的波动对系统频率测量准确度的影响。

A statistical numerical simulation method is proposed , and by which the accumulation of phase fluctuation and the spectral linewidth in semiconductor lasers are investigated theoretically .

本文提出一种统计数值模拟法，从理论上较严格地研究自发辐射的量子涨落引起的半导体激光相位涨落积累量和模式线宽。

Piecewise correlators can be used in sonars transmitting continuous narrow-band random signals to avoid decorrelation caused by phase fluctuation of received signals .

在发射连续窄带噪声的相关声呐中，为了使相关输出不受回波相位起伏的影响，可以采用分段相关器。

In this peper , it is discussed about the laser radar 's angular tracking errors caused by atmospheric turbulence which results in intensity fluctuation and phase fluctuation .

本文讨论了大气湍流引起的强度起伏和相位起伏对激光雷达跟踪系统测角精度的影响。

Numerical calculations have shown the dependence of the optimum pinhole size on the Fresnel number of the system , the truncation parameter and the phase fluctuation parameter .

数值计算结果表明，最佳滤波小孔尺寸与系统菲涅耳数、光束截断参数以及光束的位相畸变参数等有关。

Numerical calculation results show the dependence of the power ( energy ) focusability on the obstruction ratio , truncation parameter , the amplitude modulation and phase fluctuation parameters .

数值计算结果表明，功率（能量）集中度与光阑的遮拦比、光束截断参数以及振幅调制和位要畸变参数等有关。

The thesis puts much emphasis on three phenomenon of the laser under the effects of turbulence , i.e. , intensity fluctuation ( atmosphere glistening ) , beam floating and extension , phase fluctuation .

重点介绍湍流作用下的激光的三种物理现象及其产生机理，即强度起伏（大气闪烁），光束漂移和扩展，相位起伏和到达角起伏。

It is shown that the R in free space increases with increasing the phase fluctuation parameter , the intensity modulation parameter and the truncated parameter . But the influence of turbulence on the R also increases with increasing the three parameters .

研究表明，在自由空间中，位相畸变参量、振幅调制参量和光束截断参量越大，R越大，但其R受湍流的影响也会越大。

For long pulse times and especially for CW mode , the coupling between ions and electrostatic potential wells in the devices will lead to ion noise , which generally manifests itself as a slow phase fluctuation on the output signal .

在长脉冲或者连续波的工作状态下，电离出的正离子与管子中的静电势阱相互作用会引起离子噪声，通常表现为输出信号相位与幅度的缓慢波动。

In order to achieve high data rates on the severely band-limited UWA channels , band-width efficient phase-coherent modulation techniques must be employed , together with the equalization processing , to compensate for intersymbol interference and carrier phase fluctuation .

为了在带宽十分有限的水下声信道中实现高速通信，必须使用带宽利用率高的相干方式进行调制，并使用自适应均衡等技术抵消符号间干扰，补偿相位畸变。

For a Gaussian beam wave , both the tip-tilt and the phase fluctuation curvature of the propagation path contribute to the amplitude fluctuation , and both the tip-tilt and curvature of the adaptive optics conjugation phase at the transmitter contribute to the general amplitude fluctuation .

对于高斯光束，折射率不均匀媒质相位起伏的倾斜项和曲率项共同对幅度起伏有贡献，发射端的自适应光学共轭相位的倾斜项和曲率项共同作用于总体的幅度起伏。

For a fixed standard deviation of the phase 's fluctuation and the quantity , the larger the number of the constituent fields is , the bigger the fringe contrast ratio is .

在给定和的情况下，参与相干合束的激光场的个数越多，远场干涉条纹对比度越大。

Amplitude and phase of pressure fluctuation at the inlet of draft tube as well as the inner flow in draft tube are analyzed in detail .

详细分析了尾水管进口截面的压力脉动的幅值和相位，并对尾水管内的流动做了分析。

The multi-cycle noncircular gear have more innovative , the transmission is based on the same cycle and difference of a phase angle of fluctuation .

至于多周期非圆齿轮副更具创新点，它的变速传动是基于运动规律为等周期而相位相差一个相位角的脉动变化。

The phase and angle-of-arrival fluctuation of the beam on the receiver plane , which propagate through the atmospheric turbulence , have the specific statistics relation with each other .

经过大气湍流的激光束，在整个接收面上会产生相位起伏和到达角起伏，两者统计特征有确定的数学关系。

The effect of phase and amplitude fluctuation of lasers on the time-delayed laser-induced double gratings ( TDLIDG ) caused by thermal effect has been analysed theoretically in this paper .

从理论上分析了激光相位及振幅的随机涨落对由热效应引起的时间延迟激光感生双光栅（TDLIDG）的影响。

The probability distribution of the phase and the phase fluctuation are discussed during the single photon process .

具体讨论了单光子过程位相概率分布和位相涨落动力学。

Theoretical Analysis of Phase Noise Induced hy Fluctuation of Environmental Temperature for Fiber & Optic Interferometric Sensor

干涉型光纤传感器的温度交叉敏感相位噪声的理论分析

High diversity during non-outbreak phase can suppress large fluctuation of defoliators .

非暴发期的多样性高可降低害虫的变动幅度。

This paper mainly studies the coupling error caused by induction voltage phase difference , and fluctuation of directional sensitivity caused by changes in near-field difference slope .

本文着重研究了因近场感应电压相位差引起的耦合误差，以及近场天线差斜率变化引起的定向灵敏度的变化；

By sharing one capacitor in the DC side , this circuit configuration can not only implement individual phase control , suppress fluctuation of capacitor voltage , but also implement the modular design .

这种电路结构不仅可以实现分相控制、降低电容电压的波动，而且易于提高电压等级、实现容量拓展，便于模块化设计。

And the techniques of double-slit filter and " cross-filter " can be used to extract the near field wavefront of the laser beam with phase modulation and amplitude fluctuation .

而且，利用双狭缝滤波和“交叉滤波”技术能够提取出具有位相调制或者是具有振幅起伏的近场波面。

Non linear relationships of two phase stresses and two phase fluctuation velocity correlations with the strain rates are derived based on the two phase algebraic Reynolds stress expressions .

文中推导出气相、颗粒相的雷诺应力和两相脉动速度关联的非线性应力应变关系式。

Due to the sensitivity of fiber , the phase of internal transmission field is affected by external parameter fluctuation . The measurement signal induces the phase fluctuation of transmission light . Meanwhile , external additional disturbance change the phase information as well .

由于光纤的敏感性使其内部传输光的相位极易受到外界参量的影响，被测信号引起光相位改变的同时，干涉仪传输回路上的外界附加扰动也会使相位信息发生变化。