查询词典 filter base

Xi′an Node Science Technology Co.Ltd.,Xi′an,710075,ChinaAbstract:In this paper,a new variable interpolated filter in DVB-S(Digital Vidoe Broadcast by Satellite) is introduced based on the common filter of cascaded integrator comb.Firstly a CIC filter module with interpolation factor 2 is designed,then we could reuse the basic module according to the interpolation factor.

摘 要：在数字上变频中常用的CIC滤波器的基础上，提出了一种适用于DVB-S系统的可变插值率CIC滤波器的实现结构，首先实现一个内插因子为2的CIC滤波器单元，然后根据不同的内插因子要求，来重复地调用这些内插因子为2的基本滤波器模块，这种CIC滤波器的实现结构符合结构化的设计思想。

Three new median filters are proposed in this paper, such as the weighted median filter and center weighted median filter and switching median filter.

本文在传统中位数滤波的基础上，与几种改进的中位数滤波进行比较，找出各自滤波的优劣。

In order to preserve more details while erasing mixed noise, a new algorithm based on the structure of modified trimmed mean filter was proposed. Characters of the new one are: 1 replaces the median filter with center weighted median which shows better performance in preserving details; 2 uses the filtering result to estimate the deviation of Gaussian noise. The estimating result is used to change the filter parameter, so the new algorithm is robust.

为了在滤除退化图像中混合噪声的同时能更好地保护图像的细节，文中提出了基于改进均值滤波结构的新算法，其特点为： 1）用中心加权中值滤波算法替代MTM 方法中的中值滤波算法以更好地保护细节； 2）提出了一种直接利用滤波结果来估计混合噪声中高斯噪声方差的方法，估计的结果被用于滤波器系数的调整，使得新算法有很好的鲁棒性。

The ADWM filter has the features of directional filter, which is especially effective at preserving edges, and the features of center weighted median filter, which can reduce random noise, and moderate amounts of impulsive noise also, to some extent, as well as preserve the details via adaptively determining the weight of the center pixel according to the lowest variance of pixels within all the sub-windows.

ADWM滤波器既有定向滤波器的特征，也有中心加权中值滤波器的特征。定向滤波器可以有效保持边缘，而中心加权中值滤波器对减少随机噪声尤其有效，同时也能在一定程度上减少冲击噪声的数量，并根据子窗口内像素的最低方差自适应地调整中心像素的权值以保持图像的细节。

The ADWM filter has the features of directional filter, which is especially effective at preserving edges, and th e features of center weighted median filter, which can reduce random noise , and moderate amounts of impulsive noise also, to some extent, as well as p reserve the details via adaptively determining the weight of the center pixe l according to the lowest variance of pixels within all the sub-windows.

ADWM滤波器既有定向滤波器的特征，也有中心加权中值滤波器的特征。定向滤波器可以有效保持边缘，而中心加权中值滤波器对减少随机噪声尤其有效，同时也能在一定程度上减少冲击噪声的数量，并根据子窗口内像素的最低方差自适应地调整中心像素的权值以保持图像的细节。

May be, and any model, specification supporting the use of filter press, filter press for the slurry to give the best matching filter press pump types.

可和任何型号、规格的压滤机配套使用，将浆料送给压滤机进行压滤的最理想配套泵种。

To solve the problems of the limescale ,the oxidation which are produced by the direct contact between a metallic conductor and water, the detecting reliability and the service life, the utility model adopts the technical proposal as below: the proposal comprises a monostable controllable trigger, a second low-pass filter, a voltage follower and a display circuit, the power circuit links with the monostable controllable trigger, the second low-pass filter, the display circuit and a timebse pulse circuit separately, the utility model is characterized in that the monostable controllable trigger, the second low-pass filter and the display circuit sequentially links, the monstable controllable trigger separately links with a water lever sensor and the timebase pulse circuit.

为了解决金属导体与水直接接触会产生水垢和氧化，影响检测可靠性和使用寿命的问题，本实用新型采用了以下技术解决方案：它包括单稳可控触发器，二阶低通滤波器，电压跟随器和显示电路，电源电路分别与单稳触发器，二阶低通滤波器，显示电路和时基脉冲电路相接，其特征在于单稳可控触发器，二阶低通滤波器，电压跟随器和显示电路依次相接，单稳可控触发器分别与水位传感器和时基脉冲电路相接。

This paper makes a conclusion for the procedure of rational number wavelet filter design, and with the example of length-4 rational number wavelet filter, makes a discussion on the determination of free variable value range which appears in the design equation, then obtains a rational number wavelet filter that applicable for image processing algorithm realization based on vision sensor hardware.

本文归纳总结了有理系数小波滤波器的设计过程，并以长度为4的有理系数小波滤波器设计为例，对如何确定设计方程中自由变量的取值范围进行了讨论，以得到适用于视觉传感器图像处理算法硬件实现的有理系数小波滤波器。

The theoretic transfer function of the filter made of N-stage HBFs, and the expression are obtained when N is 1, 2 or 3; the polarization independence of the filter is analyzed, and the relation between the frequency response and the parameter of filter such as the length, beat length of HBFs and the angles between HBFs is studied; finally, some experiments are performed to check the theory, and the result shows to have good agreement with the theoretic result.

从理论上得到了N段双折射光纤构成环镜滤波器滤波特性的结果；具体给出了N为1、2和3时的具体表达式；分析了所构成的环镜滤波器的偏振无关特性；讨论了双折射光纤的长度、拍长、双折射光纤之间夹角等因素对滤波器滤波特性的影响；最后，做了相关的实验验证，所得到的实验结果和理论模拟结果非常吻合，证实了理论的正确性。

At first, the characteristics of probability distribution and frequency spectrum of noise inside measuring signal of feedback elements are discussed. Statistic filter method is come up with for noise signal of being Gauss distribution. It is analyzed reason that statistic filter method is superior to arithmetic average filter method.

分析了反馈元件测量信号中噪声的概率分布特性和频谱特性，对呈正态分布的噪声信号提出了统计滤波法，分析了该滤波法优于算术平均滤波法的原因。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。