初相

初相移对电光双稳系统特性的影响

The Effect of the Initial Phase Shift on the Properties of the Electro-optical Bistable System

应用检相原理可以提取有限长度调制信号的初相、相位差和相位调制量。

According to the phase-detecting principle , the initial phase , phase difference and phase-modulation rate may be obtained in a limited length of modulator singnal .

基于DFT相位的正弦波频率和初相的高精度估计方法

High Accuracy Frequency and Phase Estimation of Single-Tone Based on Phase of DFT

提出了一种基于误差知识的二重插值DFT方法用于高精度时钟初相测量。

A high performance measurement of initial phase via a Dual Interpolated DFT method based on error information is presented .

导出了球不变随机过程（SIRP）杂波背景下已知信号、初相未知相参脉冲串和非相参脉冲串信号的局部最优检测器。

The locally optimum detectors for a known signal , coherent pulse train with unknown initial phase and incoherent pulse train against SIRP clutter are developed .

输出电压峰峰值为10.24V，调幅步进为0.01V；初相调节范围为1°～360°，初相调节步进为1°。

The voltage peak-to-peak value is 10.24V with amplitude resolution 0.01V . The phase range is 1 to 360 with phase resolution 1 .

初相未知信号联合检测与估计的序贯实现

Sequential implementation for joint detection and estimation of signal known except for phase

一种基于双谱的正弦波初相估计方法

Phase Estimation of Sinusoidal Signal Based on Bispectrum

磁暴为急始型，在我国地区初相期变幅有200-300nT，主相最大幅度有500-600nT，为多年来所罕见。

The maximum amplitudes during the main phase in China region are about 500-600 nT .

抖晃初相在振动频响估计误差中的作用

Effect of Initial Phase on Estimation Error of Frequency Response Analysis of Wow and Flutter

仿真分析表明，以上距离对准和初相补偿算法是有效的。

And the simulated results showed the advantages of the range alignment and phase compensation method presented above .

首次介绍全息动平衡方法的基本概念，如试重椭圆、初相点和移相椭圆等；

Some new basic ideas concerning initial phase point , phase shift ellipse and orbit of test weight , etc.

诸谐波分量的参数&波幅和初相唯一地决定了其对光谱曲线的贡献和构形位置。

The amplitude and phase of each wave component solely determine its contribution to the overall waveform of spectra .

为获得高分辨雷达图像，回波信号间必须保持精确的相位关系，但是雷达与散射点间的相对运动会引入一定的初相误差，破坏雷达信号间的相位相干性，从而影响所得图像质量。

In order to obtain high-resolution radar images , it is necessary to maintain the precise phase relationship between return signals .

根据受迫振动的动力学方程和运动学方程，利用旋转矢量法求受迫振动的振幅和初相。

According to the dynamic and kinematic equations of forced vibration , the amplitude and initial phase of forced vibration are obtained .

针对相位编码信号的检测，提出了基于单循环检测器的有限多循环检测器，可在没有编码序列、初相、编码序列初始时间等信息的情况下，取得理想的检测效果。

The finite cycle detector has a good performance under unknown the spreading code sequence , initial phase , spreading code timing epoch .

本文首次提出了时延和初相是影响多音复包络法测量精度的两个主要因素；

It is proposed firstly that the original phase and time - delay are the main factors which affect the measuring resolution of the multitone complex envelope method .

低于某一频率时，谱强度随载波包络初相的增大而减小，高于此频率时，谱强度随载波包络初相的增大而增大；电子进入光场初相的增大削弱了散射谱的强度。

The spectral intensity decreased with the increase of the carrier-envelope offset phase first , and then increased and it decreased with the electron initial phase being enhanced .

考虑三种情形的信号：已知初相的相参脉冲串，未知初相的相参脉冲串，以及非相参脉冲串。

Signals in three cases are discussed : the coherent pulse train with known initial phase , coherent pulse train with unknown initial phase , and incoherent pulse train .

除由未补偿的运动误差引起的初相误差外，影响雷达图像聚焦性能的初相误差还包括由信号传播及系统的不稳定性等引起的初相误差。

Except for the phase error caused by uncompensated motion errors , the phase errors that affect the image quality can be caused by the propagation effects and system instability .

浮现磁流、冲浪、暗条爆发和耀斑开始&1981年5月16日大耀斑的初相

The Emerging Magnetic Flux , the Surge , the Eruption of Filament and the Onset of Flare & The Initial Phase of the Great Two-Ribbon Proton Flare of May 16 , 1981

爬行测量中应用的检相原理，可以提取有限长度调制信号的初相、相位差、相位调制量和估计频率。

According to the phase-detecting principle used in stick-slip measurement , the initial phase , phase difference , phase-modulation rate and frequency estimation may be obtained in a limited length of modulating signal .

该文用余弦函数给相位兑换差下了定义，并揭示了李萨如图形，在频率比确定后，随初相兑换差而变化的周期。

This article defines exchange margin of phase from cosine function , and brings the change period of Lissajous 's figures for the exchange margin of phase , when frequency ratio is made swe .

在一个频率分辨单元及其附近只存在一个频率信号时，对频率和初相的校正有多种方法，如三点卷积校正法、幅度比值校正法和相位差法。

Many correction methods have been proposed for signal 's frequency and phase corrections when there is only a frequency signal in one frequency resolution cell , for example , three-point convolution method , amplitude ratio method and phase difference method .

对于已知频率、未知振幅和初相的正弦扰动，或其它不可测量的恒值扰动，运用内模原理，通过设计内模动态补偿控制器，使系统达到无静差的、完全的扰动抑制。

For the sinusoidal disturbances of known frequency , but unknown amplitude and phase , or other unmeasurable persistent disturbances , based on the internal model principle , the internal dynamic compensator is designed to reject disturbances with zero steady-state errors perfectly . 4 .

研究并讨论了系统的延迟时间，消光系数，输入光强和初相移对动态存储最高谐波数的影响，指出开发利用系统动态存储功能的途径。

The highest harmonic number of the dynamical memory have been simulated numerically and analysed , and the effect of the delayed time , extinction coefficient , input intensity , and initial phase shift on the highest harmonic number have been studied and discussed .

该算法分别通过卷积和相关提取不受发射脉冲随机初相、振幅、脉间频率抖动影响的幅度分量和相位分量，再联合成新的相参复信号。

The amplitude component and the phase component , which are not completely influenced by the random phase , amplitude and frequency of the transmitted pulse , are separately extracted using convolution and correlation processing and are then combined into a new complex coherent signal .

改进平衡效率计算公式，提出初相点影响系数法并与水平振动、垂直振动、极大振动三种振动测量项的影响系数法进行实验比较；

The formula calculating balancing efficiency was therefore improved and initial phase point vector was applied directly to influence coefficient calculating . Comparison based on relevant experiments was given with other three vibration measurement items such as horizontal vibration , vertical vibration and maximum vibration .

本文研究了机床运动平稳性的测试系统，提出了信号调制和其初相、相位差、相位调制量和估计频率的检测理论方法，讨论了该系统的硬件和软件的研制

This paper researches the measuring system of the smoothness in the machine-tool movement It expounds the measuring theory and method of the signal modulation , initial phase , phase difference , phase-modulation rate and frequency estimation The development of the hardware and software of the system is discussed

TiO2可改变系统的初晶相类型从而影响析晶动力学。

The crystallization kinetics was effected by TiO2 through changing the original crystal .