查询词典 filter center

The design of a surface acoustic wave filter with a center frequency of 44?MHz, a 1?dB bandwidth of 8?MHz, an out-of-band rejection of more than 60?

采用数字傅里叶变换技术设计并制作了一个中心频率为44MHz，1dB带宽为8MHz，带外抑制大于60dB，插损小于28dB的带通滤波器。

Clean air, after entering clean air chamber from center of filter cylinder, is discharged from upper blower fan outlet.

清洁空气由滤筒中心进入清洁空气室再经上方的风机出口排出。

Secondly, for the same hash function, the sample with the minimum hash value is selected as the global sample and the local samples are combined at the center node to filter out the biased effect of duplicated updates.

然后，对于相同散列函数产生的样本选取具有最小散列值的样本作为全局样本，完成局部样本集在中心节点的合并，滤除在分布节点上的重复更新对样本偏斜的影响。

To this end, we systematically investigate the some properties of m-band compactly supported orthogonal multiwavelets system related to each type symmetric center filter.

从一个给定的具有对称性质的m带紧支撑正交多尺度函数出发，欲构造也具有对称性质的m带紧支撑正交多小波，可转化为对给定矩阵的对称仿酉扩充问题。

This process needs to be done is to factor the function (-1) ^ multiplied by the input image to achieve the center of filter change, and also requires a real matrix multiplied by a complex matrix by calling the two images of the multiplication process to achieve multiplication of the corresponding elements, calculating the anti-Fourier transform at the same time, the result multiplied by (-1) ^ and check the final calculation of the Department of the spectrum in fact.

这个程序需要完成的功能是用因子（-1）^乘以输入图像以实现滤波的中心变换，并还要求用一个实矩阵乘以一个复数矩阵通过调用两个图像的乘法程序来实现对应元素的相乘，同时计算反傅立叶变换，得到的结果乘以（-1）^并取其实部最后计算频谱。

The signal processing system consists of a band pass filter with center frequency of 2.856 GHz and bandwidth of 10 MHz,a logarithmic detector,a analog digital converting module...

本系统有效地采用了虚拟仪器的技术，具有模块化、开放性、易于交互、可扩展的特点，测试结果表明，其分辨率达到0.1 mm，符合设计要求。

In the experiment,by adjusting the manual tunable fiber Bragg grating and control the transmission of the light through the filter band,the operating center wavelength of the fiber lasers could be tuned from 1 047 nm to 1 055 nm and pulse duration at a repetition rate of 4.9 MHz.

实验中，在保证锁模状态稳定的情况下，通过调节可调谐光纤光栅滤波器，使激光器输出锁模脉冲的中心波长在1 047 nm～1 055 nm范围内连续调谐，重复频率稳定维持在4.9 MHz。

For a single filter, the center frequency is 39.5MHz, the 20dB shape factor is 2.8, and a bandwidth is 49 kHz,respectively.

除此之外，吾人另制作高频单一滤波器的中心频率值39.5 MHz，波形常数为2.8，频宽为49kHz。

Detail analyses and algorithms are presented for the design and realization of the optical localizing system, including the techniques of speckle classification, speckle-center explorer, speckle marcher, speckle recognizer and infrared filter, etc.

论文详细给出了置换手术导航中光学定位系统设计和实现过程中的关键步骤和算法，包括红外光斑的聚类、光斑识别、光斑实时跟踪方法以及红外滤波片的选择。

By the 12321 Am321 that inform against center and ray sky company to offer freeware or public domain software has " mode of short message of green screen rubbish " it is teenage user to measure a body namely custom-built, all short messages will be accepted below green mode more strict filter, make undesirable be far from teenage friend with rubbish information.

由12321举报中心与光芒星空公司提供的Am321免费软件具有的"绿色屏蔽垃圾短信模式"就是为青少年用户量身定制的，所有的短信在绿色模式下将接受更加严格的过滤，使不良与垃圾信息远离青少年朋友。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。