查询词典 frequency band

This paper first research the electric wave circumstance in radio frequency band.

在此基础上研究了基于数字广播接收机的软件化设计。

Finally, the energy of every sub frequency band is extracted to be the texture feature of the image.

采用图像中各尺度小波系数的能量值作为图像的纹理特征，以此进行图像检索。

It is based on the frequency band energy, and combined the wavelet packet analysis with the energy monitoring.

将小波包分析与能量监测相结合，提出了根据频带能量对早期故障进行特征提取和识别方法。

The frequency band energy method based on the wavelet packets analysis is used for the feature extraction of signal.

同时，运用基于改进的小波包的频带能量法提取变频调速系统的故障特征，分析了小波包分解层次对特征量提取的影响。

A detecting technique based on wavelet packet frequency band energy analysis combined with experiments is given.

及时发现结构是否损伤，以及确定损伤的位置和损伤的程度具有重要意义。

The magnitude of coning error which is affected by the fixing error , gyro' s quantizing error and frequency band , and so on is deduced based on the analysis of kinematic mechanism of coning error generation.

本文在分析了圆锥误差的运动学机理的基础上推导了由于安装误差、陀螺量化误差、陀螺频带选取等因素影响下圆锥误差的大小。

In short, it is possible to measure the total power in the specified frequency band.

总之，这是有可能的措施，总功率在指定的频段。

The design is very suitable for wireless communication systems which work in ISM frequency band.

所设计的软硬件接口非常适合在ISM频段的无线通信系统中应用。

But it has some defects, such as narrow frequency band and resistance are poor.

但是它也存在着一些缺陷，比如频带窄、抗干扰性差等。

MIMO can improve the capacity and the quality of communication and it need not to expand frequency band.

MIMO技术在不增加频谱带宽的情况下，可以提高无线通信系统的通信容量和通信质量。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。