能测量含有直流分量的交流电压信号。
It can also be used to measure the AC voltage signal with superimposed DC component.
提出一种能很好抑制幅值衰减的直流分量的余弦算法。
This paper presents the Cosine algorithm that can best restrain DC component for amplitude attenuation.
采用双极调制方式单周控制APF补偿后的电源电流中存在直流分量。
There are DC off-sets in the compensated source current of the APF with one-cycle control under bipolar modulation.
它可有效滤除衰减直流分量并具有较好的频率特性与较高的计算精度。
It can filter efficiently decaying DC component, has clear frequency characteristic, and make calculation with high precision.
并采用滤除衰减直流分量的傅氏算法，提高了数据精度、简化了硬件电路。
The decaying DC component is filtered in the Fourier algorithm, which improves data precision and simplifies hardware circuits.
通过针对输出电容的电压差值的直流分量进行补偿，解决了电压平衡问题。
The problem of voltage balance was solved by a compensation for the difference of the output voltage of capacitor.
新算法通过增加两个采样点，使其对直流分量的滤波效果得到大大的改善。
By adding two sampling points, new algorithm can filtrate it evidently.
介绍了该编码的编码和解码步骤，并给出了控制编码后序列直流分量的方法。
The method to suppress the low-frequency components of the encoded sequence was proposed.
介绍了光泵磁共振实验中扫场的直流分量及用光抽运信号测定地磁场的方法。
The level magnetic field in the experiment of optical pumped magnetic resonance is discussed.
理论上新算法可以消除任意衰减时间常数的直流分量对所求各次谐波分量的影响。
In theory, the influence of the exponential DC component on the fundamental wave component with random decay time constant can be completely eliminated with the algorithm.
由于传统傅氏算法无法滤除衰减直流分量，从而导致计算结果出现误差。对如?。
With the simulation result, the paper compares and evaluates the filtering capability of these improved algorithms.
作为视频信号的一部分，双电平同步包含了一部分并不需要的直流分量(如图2)。
As part of the video signal, bi-level sync introduces an unwanted DC component (Figure 2).
对近年来提出的几种改进傅氏算法进行分类研究，着重分析了其滤除衰减直流分量的方法。
This paper studies several sorts of improved Fourier algorithm in recent years, particularly analyzes the method of filtering decaying DC component.
全波傅氏算法是基于周期信号推导出来的，当采样信号中含有衰减直流分量时，将会产生误差。
The decaying DC component in the sampling signal will bring errors to the full-wave Fourier algorithm, which is derived with periodic signal.
本系统电缆绝缘在线监测理论，以比较成熟的直流叠加法为主，加上直流分量法作为理论基础。
The DC superposition method was mainly utilized because it was ripe theory about On-line Insulation Monitoring on the XLPE power cable, in addition of the DC partial current method.
在电力系统中，任何故障或扰动都会使得系统中出现衰减直流分量，它将影响继保装置的测量精度。
Decaying DC offsets are generated following any faults or disturbances in an electric power system, and the measure accuracy of digital relay devices is affected.
要分析电网的暂态特性，还必须考虑衰减直流分量和衰减正弦波，以及电压缺口和频率偏移等问题。
Such problems as the attenuation of DC elements and Sine waveform, voltage sag and frequency deviation should be taken into account in order to analyze the transient process in the power system.
水印信息经随机置换与LDPC编码，对经过二次整数变换之后的直流分量进行修改实现水印的嵌入。
The watermarking information that is stochastically permuted and coded by LDPC is embedded in the modified DC components which are attained by integer transform twice.
通过对逆变器基准正弦波直流分量的高精度数字调节，相应调节逆变器输出电压直流分量以抑制直流环流。
By digital adjustment with high precision on the DC bias of reference sine wave, the DC bias contained in inverter output voltage can be adjusted to restrain DC circulating current.
对于无输出隔离变压器的逆变器并联系统，各模块输出电压直流分量不一致会在模块间产生较大的直流环流。
For the parallel inverter system without output isolation transformers, the difference of DC components of the output voltage can cause large DC loop-current among modular inverters.
对于无输出隔离变压器的逆变器并联系统，各模块输出电压直流分量不一致会在模块间产生较大的直流环流。
For a parallel inverter system without output isolating transformers, discrepancy in DC biases contained in the output voltage of each module can cause large DC circulating current among inverters.
提出了一种利用地震和测井资料、综合考虑子波相位特性、直流分量和截断效应的影响，提取井旁子波的方法。
With consideration of the effects of phase characteristics, direct component and digital truncation, a method for extracting wavelet near a well by using seismic and log data is proposed.
提出用交流分量到直流分量的距离作为加权因子对频谱评价函数进行改进，有效地提高了对焦评价曲线的灵敏度。
We revised frequency spectrum functions by using weighting factor - the distance between direct component and alternating component, and improved the acuity of focus measure curve.
由于傅氏算法原理上的局限，它不能完全滤除非周期分量，尤其对电流故障中常见的衰减直流分量的抑制能力很差。
Because of the limitation of theory, Fourier algorithm is unable to filtering the periodic component, and especially poor in restraining decaying DC component which is common in current malfunction.
传统的单周期控制有源电力滤波器以峰值电流检测的控制方式和纹波电流的存在导致补偿后的电源电流中含有直流分量。
There are DC off-sets in the compensated source current of the traditional APF with one-cycle control due to the existent ripple and the peak current detection.
分析了系统的全局稳定条件和补偿后电流中直流分量的产生机理，研究了系统带不平衡负载和动、稳态补偿性能以及稳定性。
The analysis of the whole region stability condition and the mechanism of the DC off-set in the compensated current of the system is proposed.
该算法是先对有意义的灰度图像进行水印序列化处理后，再将其作为水印信号嵌入到载体图像的分块DCT系数直流分量里。
The meaningful gray image is serially processed into watermark signal and embedded into the DC elements of the block DCT coefficient matrix of the host image.
快速傅里叶变换(FFT)是电力系统进行谐波分析的主要算法，但当输入信号中含有衰减直流分量时，FFT算法会产生较大的误差。
Fast Fourier transform (FFT) is the main algorithm for harmonic analysis in electric power system, but when there is the decaying DC component in input signal, FFT algorithm will have higher error.
近来，有学者提出：图像经过DCT变换后，它的直流分量的感觉容量比交流分量大。从稳健性的角度，DC分量最适合用来嵌入水印。
Recently, some scholars argue that more robustness can be achieved if watermarks are embedded in DC components since DC components have much larger perceptual capacity than any AC components.
该方法利用闭合曲线的傅立叶级数表示的直流分量和一次分量实现对闭合曲线的椭圆拟合，可以避免通常椭圆拟合方法中的矩阵求逆问题。
The method USES the DC component and the first harmonic of a curve's chain code expressed by Fourier series to fit the curve, avoiding the inverse calculation of an array used in general methods.
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