相位

Results （1）Ninety percent of the 10 patients with unilateral peripheral lesions, showed abnormal VAT results. Lag of the horizontal phase was significantly higher in this group. Four patients had abnormal VAT high-frequency asymmetry. Lag of the vertical phase and decreased vertical gain can occur.

结果 （1）单侧外周前庭功能损害10例，主要表现为水平前庭-眼反射相位延迟及低增益， 4例伴有非对称性异常，可伴有垂直VOR相位延迟及增益异常。

To meet the common demands of the heterodyne signal process system, a phase measurement system based on dual-differential phase discrimination is studied and applied. With the frequency range of 5kHz-50kHz, this system has sampling rate of 10/sec, stability of ±0.0036°, maximum error of ±0.06°, and it can measure the zero point of phase angle.

围绕高精度外差信号处理系统的一般要求，研究和实现了基于双向差动鉴相的相位测量系统，在5kHz-50kHz的范围内、采样速率10次／秒时，示值稳定性优于±0.0036°，最大误差小于±0.06°，可以测量零相位。

Synchronization is the process of phase estimation method, which can be estimated under different parameters of phase size.

该程序是同步中的相位估计方法，该方法可以估计不同参数下的相位大小。

It measures the surface profile not by measuring phase but by measuring the parameters, which is relative to the white-light phase-shifting interferometric intensity and monotonic function of the depth of the tested surface in the given measurement range.

依据白光相移干涉中与干涉光强有关的一些特定参量与表面形貌之间的一一对应关系，提出了一种不直接测量相位、避开相位测量不确定性的新方法。

In the method of the invention, a baseband signal is pre-processed to realize nonlinearity compensation. The pre-processing method comprises the following steps: the filter coefficient and the multinomial coefficient of the high power amplifier are extracted; corresponding gain is calculated for the amplitude value of each point input into the sequence of the baseband signal, and the phase compensation value is calculated according to the amplitude gain; the phase compensation value and the gain which are corresponding to each point are synthesized into re-gain, a pre-processing value pi is obtained, and pre-processing output sequence is formed; the pre-processing output sequence is output into the high power amplifier directly or through a inverse filter.

本发明方法是将基带信号进行预处理来实现抵偿非线性，预处理方法是：提取出高功率放大器的滤波器系数和多项式系数；对输入基带信号序列中的每一点的幅值计算对应的增益，根据幅度增益计算出相位补偿值；每一个点对应的相位补偿值与增益合成复增益，得到预处理值p i ，构成了预处理输出序列；将预处理输出序列直接或经过反向滤波器后输出到高功率放大器中。

Ecause of stronger resonance enhancement to incident pump beam given by the Bragg microcavity, the enhancement effect of the phase conjugation wave produced by Bragg microcavity was more outstanding than that caused by naked third order NLM.

ragg微腔中的三阶NLM产生的相位共轭波相对于该介质裸露时产生的相位共轭波具有明显增强，这主要是Bragg微腔对入射泵浦光产生了较大的共轭增强作用。

Secondly, three kinds of mathematics model of optical vortex beams were introduced here. Then the propagation dynamics of optical vortex beams through the non-axis symmetry system is studied, this chapter includes the introduction of the symmetry vortex beam and the non- symmetry vortex beam, the deduction of the Collins diffract integral formula for the non-axis symmetry system, and the transformation of the vortex beam passing through the non-axis symmetry system has been described by using the numerical simulation. Then the general calculation for the orbit momentum of vortex beams, the matrix form for the orbit momentum of vortex beams, and the photon method to describe the orbit momentum of vortex beams are also introduced here. Finally, the interference about optical vortex beams was studied.

本文对涡旋光束进行了较为全面的介绍和研究，主要内容包括：（1）光学涡旋光束的基本理论，主要是介绍了单个光学涡旋光束在柱坐标中的一些表征，涡旋光束的奇异相位和光学涡旋的相位结构；（2）光学涡旋光束的三种数学模型；（3）光学涡旋光束在非轴对称光学系统中的传播动力学，其中介绍了对称涡旋光束与非对称涡旋光束，推导了非轴对称光学系统的 Collins 衍射积分公式，并利用计算机模拟图描述了对称涡旋光束经过非轴对称光学系统后涡旋形态的改变；（4）涡旋光束轨道角动量的一般计算，涡旋光束轨道角动量的矩阵形式，光子法描述涡旋的轨道角动量；（5）涡旋光束的干涉。

The frequency of this synthesizer can be changed from 405700.0000Hz to 405799.9999Hz with a minimum step frequency of 1 ×10-4Hz. The measured results show that nonharmonic interrelated spurious output of the synthesizer is less than -85dB.

该综合器的非谐波相关的寄生输出小于-85dB，频率的短期稳定度是2.07×10~(-11)/0.1s、2.48×10~(-12)/1s、2.88×10~(-13)/10s；当温度由20℃变至40℃时，综合器相位漂移Δφ=28.8°；当电源电压为+16V～+19V或+5V～+6V时，综合器输出相位不变。

In this paper, based on nonlinear stochastic differential equation for phase noise analysis approach is proposed.

文中从描述振荡器的非线性微分方程出发，提出将噪声作为非线性微分方程的一项，通过建立随机非线性微分方程来分析振荡器的相位噪声，为振荡器的相位噪声提出了一种新的分析方法。

based on the analysis of the traditional gnss carrier phase measurement model and the rule of the integer ambiguity estimation,the quality of normal integer mapping is gained,then,the theory of rough integer mapping is proposed,the question of gnss integer ambiguity estimation is solved,the searching efficiency of integer ambiguity is improved,the problem of gnss carrier phase measurement in a certain extent is solved.

摘 要：在分析传统的基于gnss载波相位测量模型对整周模糊度解算的一般规律后，得出一般归整映射的性质，进而提出粗糙归整映射理论，用来解决整周模糊度浮点解归整问题，提高了整周模糊度的搜索效率，一定程度上解决了载波相位实时测量的技术难题。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。