frequency deviation

Although the multi-scale wavelet transform has obvious advantages, it is easily leads to phase deviation and affects the image fusion quality because of the lack of translation invariance;② The spatial frequency ratio which could reflect regional similarity among images was defined.

在肯定小波变换作为图像多尺度融合工具所具有明显优势的同时，指出了其因缺乏平移不变性易导致相位偏差降低融合质量的不足；②定义了能够反映图像之间区域相似程度的空间频率比概念。

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Using this method, the time error, frequency deviation and aging is simulated. Mean while, the Allan variance after controlling is compared with Allan variance before controlling.

采用这种方法对钟差，频率偏差和老化系数进行了计算仿真，同时对滤波前后的阿伦方差进行了比较。

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Amplitude deviation , frequency deviation and phase deviation are basic power quality disturbances.

电力系统基波幅值、相位 、 频率扰动是最基本的电能质量扰动.

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First it analyzes the phase rotation and inter-carrier interference of the OFDM sub-carriers caused by the clock frequency deviation, and carries on a deviation test for the trial system which verifies the conclusions of theoretical derivation.

首先分析了时钟频率偏差对OFDM子载波造成的相位旋转和载波间干扰，并针对试验系统进行偏差测试，验证了理论推导的结论。

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Frequency deviation of atomic clock determined and calibrated by GPS time transfer with high precision

高精度GPS时间传递测定和校准原子钟频率偏差

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Both theory and numerical computation show that the error of active power and power factor measurement is proportional to the relative frequency deviation when the conventional algorithm is used, while it is proportional to square of the relative frequency deviation when the proposed weighted algorithm is used.

传统算法的有功功率、功率因数的测量误差与相对频偏成正比；而用该文所提出的三角窗加权算法，有功功率、功率因数的测量误差与相对频偏的平方成正比。

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Amplitude deviation, frequency deviation and phase deviation are basic power quality disturbances.

电力系统基波幅值、相位、频率扰动是最基本的电能质量扰动。

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W is the radian frequency deviation from the center frequency.

w是角频率与中心频率的偏离值.

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Carrier frequency offset estimation and phase deviation estimation are realized using a forward non-data aided algorithm.

用非数据辅助前向估计算法实现了载波频偏和相偏估计。

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A developed linear VCXO with wide frequency deviation has acquired better results.

研制的宽频偏线性压控晶体振荡器取得了较好的结果.

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With regard to the accuracy affection during fundamental component calculation caused by aperiodic component, frequency deviation and fractional harmonic in signal, the paper analyzes and compares three filter algorithms of Fourier algorithm, differential filter algorithm and shunt compensation algorithm.

针对信号中非周期分量，频率偏移，分数次谐波对基波分量计算精度的影响，对傅里叶、差分滤波和并联补偿3种滤波算法进行了分析比较。

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This paper realized these two use, and conclusions could got by analyzing the time deviation, frequency deviation, frequency drift, Allan deviation and the noise coefficient. All these conclusions have proved that Kalman algorithm can achieve better results in these two ways.

论文实现了这两类运用，通过对滤波后时差、频差、频漂、Allan偏差以及噪声系数的分析，得出结论，证明Kalman滤波算法在这两类运用中都能取得较理想的结果。

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The main contents of power energy include frequency deviation, voltage deviation, voltage fluctuation and flicker, voltage unbalance, temporary or transient over-voltage, wave distortion, voltage dips and interruption, power supply reliability and so on.

电能质量的内容包括频率偏差、电压偏差、电压波动与闪变、三相不平衡、暂时或瞬时过电压、波形畸变、电压暂降与短时中断以及供电连续性等。

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There are several key techniques, estimation of carrier frequency, estimation of carrier phase deviation and estimation of code width.

其中包括以下几个关键技术：载波频率估计，相位偏差估计和码元宽度估计。

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PLL under the action of a single particle in Space radiation environment, will result in frequency or phase deviation, or even result in suspension of oscillation, which may lead to the interruption of communication or function, thereby spacecraft catastrophic consequences follows.

空间辐射环境中的PLL在单粒子作用下，将产生频率或相位偏差，甚至导致振荡中止，造成通信或功能中断，从而对航天器造成灾难性的后果。

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Systems based on OFDM are extremely sensitive to phase deviation caused by errors in synchronization. Inter-Carrier Interference ( ICI) caused by the carrier frequency deviation and sampling frequency deviation greatly deteriorate system performance.

基于OFDM技术的系统对于同步偏差所引起的相位偏移非常敏感，由载波频偏和采样频率偏差引起的子载波间干扰（Inter-carrier Interference：ICI）会严重恶化系统性能。

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A mismatch in real power results in a frequency deviation.

有功的不平衡将会引起频率的偏移.

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These variables are carrier frequency off-set value, pre-emphasis factor, weighting factor, video spectral distribution and nominal peak to peak frequency deviation.

这些变量是载频差、预加重因子、权因子、频频谱分布以及标称峰-峰频偏。

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Based on the area control error ( ACE) and frequency deviation, the total regulation power is corrected to be more suitable for CPS.

进一步根据区域控制偏差（ACE）和频率偏差的大小与方向，对区域总调节功率予以修正，以进一步提高CPS指标。

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Factors affecting the frequency deviation in REACTANCE-TUBE frequency modulation circuits

电抗管调频电路中影响频偏之因素

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In accordance with theory and history data, the influence of variety of frequency deviation k on electricity out of plan in control area, control performance standard ( CPS1) index and CPS penalty is analyzed.

通过理论及历史数据，分析了频差系数K值的变化对控制区域偏离计划电力电量、控制性能标准（CPS1）指标及CPS罚款产生的影响。

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A weighted algorithm of Triangular window and wavelet transform are using to measure active power and power factor of three-phase asynchronous motor in the non-sinusoidal waveform. The error of active power and power factor is proportional to square of relative frequency deviation.

采用三角窗加权算法并结合小波变换计算非正弦状态下三相异步电机有功功率、功率因数，其测量误差与相对频偏的平方成正比。

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However we want to get the least absolute value of frequency deviation not the least square sum of it.

但是实际需要的是使频率偏差的绝对值最小而不是频率偏差的平方和最小。

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