An inverter is constructed to improve the harmonic spectrum of the current by damping the high-frequency components using these components.
构造了一个逆变换器来实现对高频分量的抑止效果。
The detailed structure of spectrum of atmospheric tides is obtained by the spectral analysis-and harmonic analysis from the microbarograph records.
根据微气压计记录采用频谱分析和调和分析两种方法得出了大气潮谱的详细结构。
On the basis of building the ship radiated-noise model, the mathematical expectation expressions of ship radiated-noise demodulation spectrum harmonic clan feature were educed.
在建立舰船辐射噪声仿真模型的基础上，推导了单、双螺旋桨舰船辐射噪声调制谱谐波族幅值特征的数学期望表达式。
The spontaneous emission spectrum and higher harmonic gain of a relativistic electron in a novel electrostatic wiggler are discussed.
讨论了一种静电摇摆器中电子的自发辐射谱和高次谐波的增益，其形式与平面磁摇摆器中的类似。
The experiment measured the fine spectrum structure of 2 doubling harmonic at near normal direction of target and reflection direction of laser wave, employing OMA optical multi-channel spectrometer.
利用OMA光学多道分析谱仪，分别在激光镜反方向和接近靶面法线方向测量了2倍频谐波的精细结构。
Space-time distributing character of precipitation field in Akesu-river drainage-basin were studied by REOF, spectrum, and harmonic analysis.
将旋转经验正交函数（REOF）和谱分析和谐波分析相结合深入分析阿克苏河流域的降水量场的时间变化和空间分布。
The conception of wavelet energy spectrum (WES) is posed by comparing the conservation of total energy in harmonic analysis, power spectrum analysis and wavelet transform.
通过比较傅里叶分析和小波分析中能量守恒公式，提出了小波能量谱的概念。
The infrared spectrum and harmonic frequency are increasing, but the interval of frequency is decreasing.
红外光谱和谐振频率是增大的，而频率间隔是不断减小的。
Simulating low pass filter is adopted to reduce the spectrum alias and improve the speed of harmonic measurement.
采用模拟低通滤波器降低频谱混叠，提高谐波检测的实时性。
Energy-spectrum entropy and subharmonic-harmonic rate methods were used to analyze speech based on speech sinusoidal model.
基于语音正弦模型，采用能量谱熵和子谐波谐波比率方法进行语音分析。
With a minimum of mathematics and an engaging, highly rewarding style, Bloomfield provides in-depth discussions of harmonic regression, harmonic analysis, complex demodulation, and spectrum analysis.
由于最少的数学和担保，非常令人满意的风格，布卢姆菲尔德提供谐波回归，谐波分析，复杂的解调和频谱分析的详细的讨论。
At the same time the paper analyses the frequency spectrum of the wave from, and indicates the influence of voltage harmonic wave component on the steady state performance.
同时对波形进行了频谱分析，指出了电压谐波成分对双馈电机稳态性能的影响情况。
Synthesises eighteen kinds of cinnamylidene acetophenone derivatives and discusses their properties of IR, UV, photoacoustic spectrum , X ray diffraction and second harmonic generation (SHG).
合成了十八个二苯基戊二烯酮类化合物，并对其进行了一系列性质测试，包括红外、紫外、核磁共振、粉末X衍射、光声光谱及倍频性质等。
The radiation spectrum in krypton is high order harmonic.
氪的辐射谱为高次谐波。
The spectrum of harmonic wavelet is more box like than other wavelet, At the same time it has following advantages:existing certain function expression;
谐波小波在频域具有良好的盒形谱特性，另外它比通常由二进尺度函数得到的小波还具如下优越性：存在确定的函数表达式；
By theoretical derivation and sample analysis, the structure law of ship radiated-noise demodulation -spectrum harmonic clan feature and correlative questions are investigated.
通过理论推导和样本分析，研究了舰船噪声调制谱谐波族特征蕴含的结构特性和应用于识别的相关问题。
The harmonic balance analysis is applied to calculate the frequency spectrum of the AIA and the voltage across the impedance model.
谐波平衡法被用于得到AIA的谐波特性和阻抗模型的端口电压。
The effects of group-velocity mismatch and dispersion, third-order nonlinear phase modulation on pulse shape, spectrum distribution and conversion efficiency of second-harmonic pulse were discussed.
详细讨论了群速度失配、群速度色散和三阶非线性相位调制效应对倍频光脉冲波形、光谱及转换效率的影响。
It has the advantages of both the PER method and the ar method, and is mainly used to estimate the power spectrum of a short signal composed of harmonic components with random noise.
该方法吸取了PER方法和AR方法各自的优点。它主要适用于短的谐波加随机噪声信号的功率谱估计。
For the nonlinear harmonic conversion of real laser beams, we have developed a theory by applying the spatial spectrum analysis to the nonlinear coupling.
以按空间频谱展开方法，处理任意光束的非线性谐波转换过程。
The detailed structure of spectrum of atmospheric tides is obtained by the spectral analysis-and harmonic analysis from the microbarograph records in 1984 and 1985 years in Ta-Yuan region in Beijing.
根据北京塔院地区1984和1985年的微气压计记录采用频谱分析和调和分析两种方法得出了大气潮谱的详细结构；
The snoring spectrum of patients with simple snoring showed distinct fundamental - harmonic structures which were not clear in patients with OSAHS.
OSAHS患者鼾声的时域曲线表现为多个振幅、间隔不规则的复合波，频域曲线中无明显的基频一谐波结构。
The snoring spectrum of patients with simple snoring showed distinct fundamental - harmonic structures which were not clear in patients with OSAHS.
OSAHS患者鼾声的时域曲线表现为多个振幅、间隔不规则的复合波，频域曲线中无明显的基频一谐波结构。
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