现场实验与仿真都证明了该滤波器能够非常有效地抑制电网中的基波和3、5次谐波,大大提高了对双向工频通信信号的检测能力。
Practical experiment and simulation show that The 3rd, 5th harmonic are suppressed effectively and the ability of detecting the signal of TWACS is improved greatly.
研究结果表明,螺旋线慢波系统的结构参数对它的基波色散特性和耦合阻抗影响非常复杂。
As the research indicates, the structural parameters of the spiral curve slow-wave systems have complicated influence on its fundamental wave dispersion characteristics and coupling impedance.
利用谐波分析子模块对畸变信号进行分析,较直观地得出基波和谐波情况。
Fundamental wave and harmonic condition can be found clearly by analyzing the distortion signal using the sub-module of harmonic analysis.
讨论了对含谐波的正弦电压(电流)采样值直接进行小波变换计算基波、谐波电压(电流)的有效值及频率的方法。
It's discussed that the method of RMS and frequency measurements directly from the wavelet transform data associated with each sampling sine voltage (current) element pair containing harmonic.
本文在室温条件下对木材表面自由基波谱进行了研究。
The free radical spectrometer of wood surface was studied under ambient temperatures.
方法对169例输尿管结石患者进行基波显像和组织谐波显像对比观察。
Methods The image quality of ureter in 169 patients with ureteral calculi was compared between tissue harmonic imaging and fundamental imaging.
目的:通过与基波成像(FI)的对比,研究自然组织谐波成像(nthi)对冠心病节段运动观察的改善情况。
Objective: Compared to fundamental imaging (FI), we used native tissue harmonic imaging (NTHI) to improve image quality on regional wall movement of left ventricle in coronary disease.
材料和方法:采用自然组织谐波成像与基波成像(FI)对64例患者的颈动脉硬化斑块进行对比分析。
Materials and Methods: Images obtained with NTHI from 64 patients were compared with that of fundamental imaging(FI)technique.
提出同步误差放大、基波缩减的方法,获取对参数变化敏感、互相关性小的加密变量。
The methods to amplify the synchronized error and to decrease the cross correlation are proposed to generate the encryption variables which are very sensitive to parameters.
对瓶用基片端羧基波动的原因进行了分析。
The reasons for the carboxyl end group fluctuation of bottle grade PET base chips were analysed.
由于全相位预处理抑制了各次谐波对基波的干扰,因而大大提高了测量精度。
Moreover, since the all-phase preprocessing can suppress the individual harmonics' spectral interference on the fundamental wave, the accuracy is greatly enhanced.
缺点为谐波滤除率一般只有80%,对基波的无功补偿也是一定的。
Disadvantages for harmonic filtering rates generally only 80% of the fundamental reactive power compensation is also certain.
故障距离越远,电流、电压中的谐波含量对基波分量的影响越大;
The farther the fault location is, the larger the HF component will be.
故障距离越远,电流、电压中的谐波含量对基波分量的影响越大;
The farther the fault location is, the larger the HF component will be.
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