1) exponential waveguide
指数形声波导管
2) acoustic waveguide
声波导管
1.
Based on the theory of electric transmission line and the electroacoustic analogy method, the T-type equivalent network of the acoustic waveguide which is uniform and finitely long is derived in which plane wave propagate and the formula of its impedance transfer is obtained as well by means of the equivalent circuit analysis.
依据电传输线理论和声电类比原理,推导出了管中为平面波时有限长均匀截面声波导管的等效电路,并通过等效电路分析法推导出了其阻抗转移公式。
2.
Based on the theory of electric transmission line and the electroacoustic analogy method, the T_type equivalent network of the acoustic waveguide which is uniform and finitely long is derived in which plane wave propagate and the formula of its impedance transfer is obtained as well by means of the equivalent circuit analysis.
依据电传输线理论和声电类比原理,讨论并推导出了管中为平面波时有限长均匀截面声波导管的等效T型网络,并通过等效电路分析法推导出了其阻抗转移公式,为声波导管阻抗分析提供了一种新方法,使声波导管的设计更简便。
3) exponential waveform
指数波形
1.
Furthermore,the influence law is invesitigated by the use of exponential waveform,Gaussian waveform and rectangular waveform.
为了深入研究重叠时分复用系统,通过已有的理论界推导了影响系统符号差错概率的关键因素,由此解析地研究了指数波形、高斯波形和矩形波形对重叠时分复用符号差错概率的性能影响。
4) corrugated waveguide
波形波导[管]
5) glottal flow derivative
声门波导数
1.
In this method,the glottal flow derivative is modelled as the Liljencrants-Fant(LF) model and the vocal tract is described as a time-varying ARX model.
此方法利用LF(Liljencrants-Fant)模型对声门波导数(glottal flow derivative)进行建模,而声道被描述为一个时变的ARX模型。
2.
For high quality voice transformation,a novel parameter extraction scheme for glottal flow derivative is proposed based on Legendre orthogonal decomposition.
提出了一种用于源-目标说话人声门波导数参数转换的、基于勒让德正交分解的声门波导数波形参数提取方法。
3.
To parameterize the glottal flow derivative,we propose a novel method which employs the n-dimensional Legendre orthogonal coefficients to form a vector describing the shape of glottal flow derivative.
使用一种不需要精确的声门关闭期间(GCI)信息便可求出声门波的方法,该方法通过在一个基音同步帧中搜索到一个最平滑的线性预测分析逆滤波的残差信号,从而得到一个没有激励影响的声道参数,间接的获得了GCI,因而可以获得比较精确的声门波导数波形。
6) Rectangular wave-guide
矩形波导管
1.
The Computer simulation of TE10 wave transmitting in rectangular wave-guide are introduced and the simulations of incident wave,return wave,compound wave and standing wave in rectangular wave-guide are described,by which the students can fast and easily understand the principle of microwave transmitting.
编程模拟TE10波在矩形波导管中传播及驻波形成的动态图象。
补充资料：迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数
迁移效率指数、偏好指数和差别指数迁移效率指数是用于测定两地间人口迁移效率的指标。它是净迁移对总迁移之比。计算公式为:EIM一摇寿纂拼又‘。。上式中，}人么夕一材方}为i、]两地净迁移人数;从少+材户为i、]两地总迁移人数;El入了为迁移效率指数。 EIM的取值范围为。至100，如某一地区的值越大，反映迁移的的影响也越大。如果计算i地区与其他一切地区之间的人口迁移效率指数EIM厂，则: }艺材。一芝Mj、}EIM汀艺。+乏M，(j笋i) 迁移偏好指数是从一个地区向另一地区的实际迁移人数与期望迁移人数之比。计算公式为:____M.___材尸2行一:一二子一一不石一二，么M“ 了厂‘.厂‘、八 }二不十二六二1 、厂厂7上式中，M“为从i地迁到j地的实际迁移量;艺材。为总的人口迁移量;尸为总人口;M尸I，j为迁移偏好指数。通过计算迁移偏好指数，可以反映各地区的相对引力。 迁移差别指数是反映具有某种特征的迁移人口与非迁移人口区别的指数。例如，专业技术人员的人数所占比重，各种文化程度人数所占比重等，以便研究人才流失和其他间题。计算公式为:M‘从IMD、一翌不丝xl。。 .义V‘ N上式中，M为迁移人数;M，为具有i特征的迁移人数;N为非迁移人数;N‘为具有i特征的非迁移人数;了八了D、为迁移差别指数。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条