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- combined characteristic frequency bands 组合特征频带
- characteristic frequency bands 特征频带
- This effect is obvious at lower frequency band. 这种效应在振动低频区段更为显著。
- The assigned frequency band is 928 MHz to 902 MHz. 那分配频率乐团是 902个百万赫兹至 928个百万赫兹。
- The method can directly detect the fault characteristic signals in low frequency band and achievefault diagnosis. 该方法直接检测故障的低频特征信号,完成故障诊断。
- They are very compact in time and the frequency bands of interest are narrow. 它们在时间上是非常紧致的同时有意义频带是狭的。
- Initially RFID tags worked only at frequency bands of 13.56 megahertz or lower. 早期的射频识别标签只能在13.;56百万赫兹或更低的频率下作用。
- The radiation and impedance characteristic of microstrip antenna may be influenced by cutting slots on the groundplane with applications to widening the frequency band. 接地板开槽可以改变微带天线的辐射特性及阻抗特性，在微带贴片天线的频带展宽中已有所应用。
- The high time-frequency characteristic of wavelet packet analysis is utilized to decompose the vibration signal, and slag characteristic parameter is composed of signal energy in sub frequency bands. 首先，利用小波包分析的高时频分辨特性将振动信号分解到各个频带上，并以各频带信号的能量来构造用于下渣检测的特征参数。
- We can't hear any program when we turn our radio onto this frequency band. 当收音机调到这个频段上时，什么节目也收听不到。
- In a similar way,radiant energy has a characteristic frequency and length associated with it. 同样，辐射能有其特性频率和相应的波长。
- In a similar way, radiant energy has a characteristic frequency and length associated with it. 同样，辐射能有其特性频率和相应的波长。
- Combining the cepstrum method could identify the characteristic frequency availably. 结合倒频谱方法可以有效地识别故障特征频率。
- Time-dependent characteristic frequency method we advance here combines ingeniously theabove two methods. 本文提出的时间特征频率分析法是时频分析法和时间谱分析法的有机结合和补充。
- Among the first batch of economies in the world to open up the relevant frequency bands for IEEE 802.11 type of wireless services. 本港是全球首批开放有关频带作IEEE 802.;11无线服务的地区之一。
- Another attribute is the flux or radiant power that can be delivered in that narrow frequency band. 另一个性质就是在这样窄的频带内可以给出很高的光通量或辐射功率。
- Currently hybrid fiber coax (HFC) CATV networks are mainly applied to broadcasting television. There are a lot of frequency bands to be spared. 当前 ,光纤同轴线混合 (HFC)有线电视 (CATV)网络主要用于电视广播 ,存在大量的空闲频带资源。
- The influence of density ratio on the characteristic frequency of coherent structure on the centreline of low Re number free round jet flow has been investigated with Dual PDA. 采用激光粒子动态分析仪研究了低雷诺数时密度比对自由圆射流近喷嘴区轴线相干结构特征频率的影响。
- The wavelet analysis can divide signal into different frequency bands and carry out inchoate signal decomposition and extracting. 小波分析能将信号划分到不同频段内,实现微弱故障信号的分离和提取。
- Because of their inertia, the electrons will overshoot and oscillate around their equilibrium positions with a characteristic frequency known as the plasma frequency. 因为电子的惯性，它们将冲过平衡位置，并以特征频率围绕它们的平衡位置振荡。
