1) intermediate frequency
中间频率，中频
3) intermediate frequency
中高频;中间频率;中频
4) IF Frequency
中频频率
5) center frequency
中心频率
1.
Study on center frequency of tomato water stress based on virtual instrument
基于虚拟仪器的番茄水胁迫中心频率的研究
2.
In this paper,developed are a method and correspondent software for calculating formation permeability from the center frequency shift and travel time delay in direct Stoneley wave.
利用多极子阵列声波测井资料提取直达斯通利波、计算斯通利波中心频率偏移和时间延迟来进行地层渗透率反演的方法已被研究了多年。
3.
This paper derives the universal formulas for three characteristic parameters, center frequency, gain of center frequency and quality factor of bandpass filter, calculates the theoretical values of the three characteristic parameters; analyzes the effects of center frequency migration of bandpass filter on logs.
双侧向测井仪电子线路中的带通滤波器中心频率偏移直接影响地层电阻率测量值准确性，文章从理论上导出了带通滤波器的三个特性参数：中心频率、中心频率处增益、品质因素的通用表达式。
6) Median frequency
中值频率
1.
The result shows the percent determination is increased along with force and compared with the median frequency and found the relation of them.
应用RQA方法对不同位置的肌电信号进行自发受力分析,得出随着力量的增加,确定性值也相应增大的结论,并且与传统的频域分析变量中值频率进行比较,得出了确定性值与中值频率的关系。
2.
To acquire the median frequency from surface myoelectric signal spectrum,we designed a measuring system which could display the time course of the median frequency in real time so as to monitor local muscle fatigue, and used classic fast Fourier transform (FFT) algorithms to perform the estimation of the median frequency.
为从表面肌电信号频谱中获取其中值频率,笔者设计了一个实时显示中值频率对收缩时间变化曲线的系统,采用经典快速傅里叶交换(FFT)算法来完成中值频率的估计,以监测局部肌疲劳。
补充资料：中频
1.高于低频﹑低于高频的电磁振荡，其范围一般是10－550千周。在超外差式收音机中，由收音机本身产生的振荡和接收到的高频混合而取得中频。
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