Like light waves, acoustic (sound) waves are characterized by a frequency, wavelength and propagation speed.
声波就和光波一样，是以频率、波长和传播速度为其特征。
Therefore, GBRS have a useful selective effect with respect to the frequency and propagation direction of relic HFGWs.
因此，高斯束谐振系统对高频遗迹引力波的频率和传播方向具有良好的选择效应。
Phenomenon of the change in velocity of propagation of monochromatic radiations in a medium as a function of the frequency of these radiations.
在介质中传播的单色光改变其传输速度的现象，并由该辐射的频率所决定的。
Compared with other previous strategies, the simulation results show that MHH strategy performs better with less propagation delay and lower handover frequency, so it has a good practical value.
计算仿真结果表明，与已有的策略相比，该文提出的策略能够获得较低的传播延时和较小的切换频率，具有很好的实用价值。
From the viewpoint of propagation of transient voltage and current in distribution network, the transfer characteristics of two-way power frequency signals in distribution network are analyzed.
从暂态电压和电流在配电网中传播的角度，分析了双向工频通信信号在配电网中的传输特性。
Then the characteristics of frequency variation during the fatigue crack propagation process are simulated by three - dimensional dynamic finite element analysis.
并利用三维动态有限元模拟了点焊接头疲劳裂纹扩展过程中频率变化特性。
The diverse propagation way and complex application conditions bring worm eruption in frequency, latency and overcast, therefore the worm does very serious crisis to the network.
在网络环境下，多样化的传播途径和复杂的应用环境使网络蠕虫发生频率增高、潜伏性变强、覆盖面更广，给网络造成了极大的危害。
The results indicated that potential scan rate and step frequency played an essential role in the initiation and propagation of crack.
结果表明，电位扫描速度和电位阶跃频率对裂纹萌生与扩展有显著影响。
Using a complex analytical signal representation, the free-space propagation properties of ultrashort pulsed Bessel-Gauss beams whose waist width is independent of frequency are studied.
使用复解析信号法研究了束宽与频率无关的超短脉冲贝塞尔·高斯光束在自由空间的传输特性。
The Fourier amplitude spectrum used in a seismological model can be expressed as a product of source spectrum, propagation path factor and site effect in frequency domain.
在频域内，场地的地震动傅立叶幅值谱，可以表示为震源谱、传播路径影响因子和场地效应的乘积。
The propagation frequency characteristics of PD signals are studied.
研究了局部放电信号在其中传播的频率特性。
The results show that there exist attenuation in all propagation modes along viscoelastic cylindrical tube, and higher-order propagation modes haven't cut-off frequency.
分析结果表明与弹性圆柱管相比粘弹性圆柱管中轴对称波的各阶传播模式均存在衰减，高阶传播模式并无严格意义的截止频率。
The numerical result shows that the propagation of UHF radio waves favors high frequency.
数值分析的结果表明，UHF无线电波的较高频段能够在长壁工作面上传播。
The high frequency part of seismic wave propagation in subsurface is easy to be absorbed or attenuated.
地震波在地下介质中传播时，高频成分易被吸收。
High frequency (HF) communications play an important role in the field of their communications because of their skywave propagation characteristics.
短波通信由于其天波传播特性，在通信领域具有其它通信手段无法替代的地位。
On constant frequency ratio, loading ratio has an importance influence on the initiation and propagation of fatigue crack under double frequency complex loading.
在频率比确定的条件下，载荷比是影响双频疲劳裂纹萌生及扩展的一个重要因素。
The frequency prediction of skywave propagation in shortwave band is the precondition of performance prediction of skywave communication circuit.
短波天波传播频率预测是短波天波通信电路性能预测的前提。
The propagation velocity of elastic wave with different frequencies in same medium is various, which is called dispersive problem of frequency.
相同介质中不同频率的弹性波传播速度是有差异的，即频散问题。
Firstly, this paper presents an improved prediction method of maximum usable frequency (MUF) of skywave propagation based on the analysis of the current shortwave frequency prediction method.
在对当前短波频率预测方法进行分析的基础上，提出了一种天波传播最大可用频率预测的改进方法。
Sympleetic Geometrical Theory is a kind of high-frequency asymptotic method of solving electromagnetic wave propagation.
辛几何理论是一种求解电磁场波动方程的高频近似法。
OFDM is a high transmission technology in the wireless propagation environment. It is fitted to transmit high-speed data in the wireless channel which has multi-path delay and Doppler frequency shift.
OFDM是一种无线传播环境下的高速传输技术，适合在多径传播和多普勒频移的无线信道中传输高速数据。
This paper deals with the structural health detection using measured frequency response functions (FRFs) as input data toa back propagation (BP) artificial neural networks (ANNs).
研究将实测结构频率响应函数作为反向传递人工神经网络的输入数据，用来进行结构健康检测。
The high frequency signal propagation on power cable is demonstrated theoretically by solving transmission equation and analysing the stable solution.
通过对传输方程求解以及对稳态解的分析，从理论上说明了高频信号在动力电缆中的传播情况。
This paper focuses on the perturbation which takes the sine form. The effect of amplitude, frequency, wave number, and initial phase difference on the propagation of optical soliton is investigated.
重点讨论了扰动是正弦函数形式时，耦合强度、频率、波数、初始相位差对光孤子传播的影响。
Additional current density, which is a function of frequency, can be used to describe the effect of the ionosphere in the process of electromagnetic pulse propagation.
电离层对电磁脉冲传播的影响可以用一个频域的电流密度来描述，在时域则等效为一附加的电流密度和电导率。
The method considers that the frequency dependence characteristics of seismic wave velocity is caused by the nonuniformity of propagation media.
该方法考虑了由于实际介质的不均匀性而产生的地震波频散现象。
The definition of the propagation characteristics (channel parameters), as well as with the frequency of residential location.
定义了传播特性(信道参数)以及同频小区的位置。
Time domain dynamics response, frequency response function and root mean square value are taken to evaluate the vibration influence on the light-beam propagation performance quantitatively.
提出了将时域动态响应、频率响应函数和均方根值作为机械振动对光束传输性能影响的定量评价值。
The propagation of acoustic waves in sonic crystals is analyzed by means of acoustic equi-frequency surfaces.
通过波矢空间等频线的方法来分析声子晶体中声波的传播。
The propagation of acoustic waves in sonic crystals is analyzed by means of acoustic equi-frequency surfaces.
通过波矢空间等频线的方法来分析声子晶体中声波的传播。
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