The method of analysis frequency table is using the meter of frequency table to test all kinds of frequency and then calculate the distortion of the wave.
频谱分析法是用频率分析仪测量各次谐波的方法计算出波形失真度，但采用此种方法的仪器价格较昂贵。
To verify the accuracy and efficiency of this method, the distortion of the wave propagation on two typical mild slopes are simulated numerically.
为了验证方法的精度和效率问题，对两种典型缓坡地形上的波浪传播变形进行了数值模拟。
The rigorous coupled-wave theory is used to analyze the characteristics of grating diffraction, and the results indicate that this method produces no phase distortion.
运用严格的光栅衍射耦合波理论分析光栅的衍射特性，发现该方案不会引入相位畸变。
The power system harmonic is the voltage sine wave of power system get distortion; electric locomotive power will have 0 to 50 harmonics.
电力系统的谐波是电力系统电压正弦波形产生畸变，电力机车用电会产生0次到50次谐波。
Wave distortion will occur when finite amplitude ultrasonic waves propagate in elastic solids, resulting in the production of higher order harmonics.
有限振幅的超声波在固体中传播时会发生波形畸变，伴随着高次谐波的出现。
The phase-compensated property of the conjugate wave was examined, and the phase distortion image was corrected by means of this property. The experimental results obtained agree with the theory.
验证了共轭波的位相补偿特性，并利用该特性校正了位相畸变的图象，得到了与理论相一致的实验结果。
Aimed at the voltage wave distortion of ASI (aeronautical static inverter), a scheme based on the repetitive control technique was proposed.
针对航空静止变流器输出电压波形畸变的问题，提出了采用重复控制技术解决方案。
Fundamental wave and harmonic condition can be found clearly by analyzing the distortion signal using the sub-module of harmonic analysis.
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。
The output of high-power amplifier circuit is prone to induce sharpen wave distortion.
大功率功放电路的输出很容易产生削波失真。
The repetitive control approach is applied to the single-phase aviation static inverter (ASI) for solving the wave distortion of the output voltage caused by nonlinear loads.
针对航空静止变流器带非线性负载造成的输出电压波形畸变问题，分析了采用重复控制技术的单相静止变流器控制模型和补偿器的数学表达形式。
Otherwise the distortion of reconstructing image emerges, and it came from the wave aberration.
其它情况下再现像的畸变是不可被免的。这是由于再现时的波像差所引起。
Both the computer simulation and model experiment prove that it can reduce the total harmonic distortion of the harmonic current from 30.53% to 9.45% and make the waveform approach to sine wave.
通过仿真和电路试验证明，该滤波电路能将电流畸变率由原来的30.53%降低到9.45%，从而使交流侧的电流接近正弦波。
It introduces the principle of voltage inverter, analyzed the reason of distortion of output voltage and current wave form, as it is loaded with hysteresis synchronous motor.
本文介绍电压逆变器的原理，分析带上磁滞同步电动机这一负载后逆变器输出电压电流波形畸变的原因。
In the analysis we found there exists the distortion of the wave form in initial part of the record obtained from the vibrometer.
问题是通常采用的位移测振仪所记录的制动反应，其初始波形有畸变现象，这一现象严重地影响了分析的准确性。
An image restored by a recursive solution of traveling wave equation is natural to visual interpretation, without ringing effect and distortion emerging, but accumulated noise appears on it obviously.
波动方程递推求解后得到的去运动模糊图像，复原结果比较自然，没有振铃效应和畸变，但是会出现明显的累积噪声。
Extraction level of biomedical signals is improved by reducing wave distortion and average superposition times.
它减少了波形失真度和平均叠加次数，提高了生物医学信号提取水平。
The device can calculate transient harmonics (up to 50 orders) of any part of data wave, give the total harmonic distortion, each harmonic ratio and each harmonic value.
装置可以计算波形任意部分的多达50次的暂态谐波，给出谐波总畸变率及各次谐波的含有率和谐波值。
Conventional discharge condition detection methods extracting only certain eigenvalue are not suitable for the Micro-EDM due to the high frequency and distortion of voltage wave shape.
常规放电状态检测方法由于仅采用单一的特征量进行状态判别，因此在加工信号频率高、加工波形产生畸变的微细电火花加工中，不再适用。
As one of inverters, Sinusoidal Pulse Width Modulation (SPWM) inverters can achieve low total harmonic distortion (THD) output wave.
正弦脉宽调制(SPWM)逆变器作为逆变器的一种，可输出谐波含量小的正弦波形。
From the viewpoint of resource demand, ocean multi-wave exploration is a useful technology to resolve the difficult problem just as blur zoon, structure distortion and gas pollution etc.
从我国油气资源来看，海上多波地震是解决海底模糊带、构造变形和气污染等问题的有效技术。
The results show that the periodic oscillation of the immediate distortion is caused by the pulsed laser wave.
结果表明，激光的脉冲作用引起瞬时变形周期性振荡；
As one of inverters, Sinusoidal Pulse Width Modulation inverters can achieve low total harmonic distortion output wave.
正弦脉宽调制逆变器作为逆变器的一种，可输出谐波含量小的正弦波形。
The limit of this method is that the sine wave generator with high performance is necessary, especially the stability, the noise and distortion of generator.
其局限性则是对交流信号源要求较高，要求高稳定性、低噪声及低失真度；
Non-linear distortion of the tide wave is less;
潮波非线性畸变较小；
Non-linear distortion of the tide wave is less;
潮波非线性畸变较小；
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