查询词典 harmonic analysis

The paper provides a meshing analysis of the contrate harmonic gear drive which can quickly select the optimum transmission scheme and determine the corresponding meshing parameters and structure parameters.

广东技术师范学院，广州 510665； 2。佛山市财经学校，佛山 528000）摘要建立的端面谐波齿轮传动的啮合分析软件，可以较快地选取最佳传动方案，确定相应的啮合参数和结构参数。

The paper presents a new method based on the wavelet-packet transform for the analysis of harmonic groups in power systems, compatible with the standards of the International Electrotechnical Commission.

本文提出了一种新方法的基础上，小波包变换为谐波分析组在电力系统中，符合标准的国际电工委员会。

According to this model, approximate harmonic map is easily and fleetly solved by using computer linear circuit analysis.

利用此模型，可由计算机分析线性电路的长处，既方便又快速地求出调和映射的近似逼近。

The result obtained from the estimation demonstrates that the estimation harmonic frequency, amplitude and phase are very accurate using the improved algorithm for the analysis of an unsynchronized sample sequence.

实验结果表明：该算法较FFT算法在频率、幅值和相位的估计值精度上有明显提高。

The results of theoretical analysis and simulation indicate that commutation converter based on New-Type converter transformer-Filter Commutated Converter have superiority on harmonic characteristics.

理论分析和数字仿真结果均说明了基于新型换流变压器的换相换流器—滤波换相换流器在谐波特性方面的优越性。

The relationship between currents of Filter Commutated Converter and the harmonic characteristics of multifrequency AC/DC interconnected systems based on New-Type converter transformer have been studied with ideal models by means of theoretical analysis and matlab simulation.

采用理想化的研究方法，通过理论分析和MATLAB仿真对滤波换相换流器的电流变换关系以及基于新型换流变压器的多基频交直流互联系统的谐波特性进行了系统的研究。理论分析和数字仿真结果均说明了基于新型换流变压器的换相换流器—滤波换相换流器在谐波特性方面的优越性

The spectrogarph in laryngeal diseases showed irregularity,breakage or lack of harmonic waves and formants,and increase of noise.A three-point scale was used to rate the pathologic spectrograph and coincided with the degrees of hoarseness judged by perceptual analysis.

声带炎症病变各参数均值约高于正常0.5～1.5倍；声带麻痹及喉癌各均值约高于正常2.0～1.5倍：病态嗓音声谱图特征为谐波及共振峰不规则、断裂甚至消失，噪声成分增加；根据嗓音损害程度可将其分为3型。

First we give the analysis of the receiver front-end block diagram, link budget and specification allocation. Then, all the sub-circuits , including low noise amplifier, waveguide-to-microstrip transition , image reject band--pass filter, low-pass filter, and sub-harmonic mixer , are described in details.

在接收机组成方案分析，链路计算及指标分配的基础上，结合理论计算和计算机仿真，给出了各单元电路(包括探针式波导-微带转换器，低噪声放大器，镜频抑制带通滤波器，分谐波混频器，低通滤波器等)的设计和仿真结果。

According to the emulate analysis, the harmonic amplitudes go bigger with the increment of misalign value for shafts with normal couplings, but may fall for one or two times.

仿真分析结果显示，连轴节无故障的不对中转子系统，各倍频振幅随着不对中量增加，总的变化趋势为逐渐增大，但中间会出现波动。

The method is applied to study on loss factor of cocured composites with an interleaved viscoelastic damping layer under a harmonic excitation. The good agreement between the analysis result and the result using DMA indicates that the method proposed is valid.

分析结果与动态机械分析仪实测结果基本吻合，从而验证了本文建立方法的有效性，对粘弹阻尼结构的损耗因子的分析以及共固化复合材料粘弹阻尼结构的设计和应用具有一定的参考价值。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。