查询词典 filter

This article introduces the selection of relative reactor value of filter X% and its relation to external performance of filter. The selection among parallel capacitor, dissonances filter and assonance filter based on the environment are discussed deeply. The relation between filter parameter and engineering design are once more discussed. Finally, how to coordinate the functions of harmonics and reactive power compensation is argued.

本文介绍了滤波器的相对电抗值X%的选择，以及X%和滤波器外部性能的关系，并深入讨论了如何根据不同场合分别选用并联电容器、失谐滤波器或调谐滤波器的问题，也再次讨论了滤波器参数和工程设计的关系，最后讨论了如何协调谐波和无功的补偿功能。

In this paper,a design method of two dimensional Linear Phase Nearly Perfect Reconstruction filter banks based on a new class of cosine modulation systems is presented,which can be described as follow: firstly,the Parks-McClellan algorithm is adopted for designing the prototype filter,then by employing cosine modulation,a series of analysis and synthesis filters can be obtained,accordingly a one-dimensional LP-NPR filter banks can be constructed;Secondly,cascading two one-dimensional LP-NPR filter banks in the form of tree structure and using the unimodular transformation,a two dimensional nonseparable LP-NPR filter banks can be obtained.

提出了一种基于一类新余弦调制系统的二维线性相位-近似完全重构滤波器组的设计方法，设计过程分为两个步骤：首先采用Parks-McClellan算法来计原型滤波器，再经过余弦调制能到一系列的线性相位分析和综合滤波器，从而可以构造一维LP-NPR滤波器组；然后利用树状结构来结合两个一维LP-NPR滤波器组，并运用单位模变换，可以得到二维不可分离LP-NPR滤波器组。

this paper proposes a design method which can improve the performance of fractional order differential filter obviously under the premise of not increasing the structure complexity of the filter.this scheme which bases on mutually compensatory characters of typical differentiator and uses interpolated method to improve performance of iir digital fractional differential filter.the improved frequency response of fractional differential filter is more close to ideal fractional differential filter,it indicates the validity of proposed method.

摘 要：提出一种在不增加分数阶微分滤波器复杂度的前提下，能有效提高分数阶微分滤波器性能的方法。该方法利用几种基于典型微分算子的分数阶微分滤波器之间的互补性，通过相互内插结合的方式，用于提高iir分数阶数字滤波器的性能。改进后的分数阶微分滤波器频率响应更接近理想分数阶微分滤波器，表明所提方法的有效性。

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.based on the theory of cic filter,the filter with fpga is simulated and synthesized,the results is given,and realizes it in the system of dvb-s.

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。

An optimal filter is designed specially for dq transform used in the voltage mea-surement of transfer switch,which is composed of lower-order notch filter and lower-order low pass filter with higher cut-off frequency in series.Its transfer function is presented by theoretical derivation.If the order is same,it is better in measuring the positive sequence of fundamental amplitude than the average filter and the low-pass filter.

针对转换开关电压检测法——dq变换设计了优化滤波器，该滤波器是利用低阶陷波滤波器和较高截止频率低阶低通滤波器串联形成的，通过理论推导给出了该滤波器的传递函数，在相同的滤波阶数下，该优化数字滤波器在提取基波正序幅值的性能比较中，优于平均值滤波法及低通数字滤波器法等。

Customized special filter, a filter construction machinery units filter filter hydraulic filter products primarily applicable; Benz / BMW / Rolls Royce / Daewoo / modern | Road by Mainz | Scania | Perkins | Renault | Hino | Mitsubishi | Isuzu | Dorman | Caterpillar | Toyota | Cummins | Volvo | Detroit | Komatsu | Hitachi | Sumitomo | Kobelco | Li Bo Haier | Nissan | Germany Cayman | Ssangyong | Steyr | Auman | Hongyan | ABG paver | BMW roller | excavator | Loader | bulldozers | plains | Dump Truck | milling machine | tunnel blunt hook | Concrete Pump two compressors and vacuum pumps from oil and gas purification filter精密过滤器apply mainly to; Ingersoll-Rand | Atlas | Fusheng | TING of | Amat High | Iwata | Mitsui | Sunningdale | Kobelco | Matai | Ke Long | Jia Bao | Catherine | Po Ju | Giant Pa | Swan | Kang Puyi | Fidelity | Siemens | champion.

定做特殊过滤器、滤芯一工程机械发电机组滤清器滤芯液压过滤器系列产品主要适用；奔驰/宝马/劳斯莱斯/大宇/现代|道依茨|斯堪尼亚|帕金斯|雷诺|日野|三菱|五十铃|多盟|卡特彼勒|丰田|康明斯|沃尔沃|底特律|小松|日立|住友|神钢|立勃海尔|尼桑|德国曼|双龙|斯太尔|欧曼|红岩|ABG摊铺机|宝马压路机|挖掘机|装载机|推土机|平地机|自卸载重车|铣刨机|隧道钝勾机|混凝土泵车主要适用于；英格索兰|阿特拉斯|复盛|寿力|艾高|岩田|三井|向阳|神钢|玛泰|柯龙|保嘉|凯萨|宝驹|巨霸|天鹅|康普艾|富达|西门子|冠军

Two optimal filter are recommed to filter of IMC system,One,is ITAE filter that comform to the minimum integral of time-multiplied absolute error,i,e,J=∫｜e｜tdt→min,Other is Butterworth filter that have a good character of idea low-pass filter.

推荐两种滤波器作为IMC系统的滤波器。一种是ITAE滤波器，它符合时间乘绝对误差积分值最小的优化原则，即J =∫|e|tdt→min ；另一种是Butterworth滤波器，它具有很好的理想低通滤波器特性。

Foreign Trade Department of the company strong technical force, unique paper-making technology and advanced paper making equipment, specializing in the production of specialty paper products, the main varieties are: qualitative filter paper, quantitative filter paper, chromatography paper, automotive filter paper, filter oilpaper, steel paper, wear-resistant flooring paper, chemical fiber filter paper, pH paper, rubbed mirror paper, silk paper, seed germination paper and electrolytic capacitor paper, paper dust bag; variety is complete in specifications, special specifications can be custom-made, products widely used in scientific research, industry, agriculture, medicine and public health and environmental protection departments.

公司以雄厚的技术力量、独特的造纸工艺和先进的造纸设备专业生产特种滤纸系列产品，主要品种有：定性滤纸、定量滤纸、层析滤纸、汽车滤纸、滤油纸、钢纸、地板耐磨纸、化纤滤纸、pH试纸、擦镜纸、绢花纸、种子发芽纸、电解电容纸、吸尘袋纸等；品种规格齐全，特殊规格可订做，产品广泛应用于科学研究、工业、农业、医药卫生和环保等部门。

The company has a daily output of 0.5-200/h, and its main products include multi-media filter, activated carbon filter, softener, precise filter, reverse osmosis equipment, N-series filter, cation exchanger, anion exchanger, ion exchanger, EDI, ultrafilter, ultraviolet ray bacteria killer, ozonizer, pinhole filter, dosing machine, filling machine, water tank, etc..

公司目前的成套生产能力为0.5-200 /h，主要产品包括多介质过滤器、活性碳过滤器、软化器、精密过滤器、反渗透主机、纳滤、阳离子交换器、阴离子交换器、混合离子交换器、EDI、超滤、紫外线杀菌器、臭氧发生器、微孔过滤器，计量加药装置、灌装设备及水

Based on this background , making the PN code capture part as a point of the spread spectrum receiver , this paper analyse several common used Matched Filter programs on FPGA , including : the direct form of matched filter , the transposed structure of matched filter , the distributed arithmetic structure of matched filter , and folded structure of matched filter .

基于以上背景，本文针对扩频接收机中伪码捕获部分为研究重点，分析了几种基于FPGA的常用匹配滤波器实现方案，其中包括：直接形式的匹配滤波器、转置结构的匹配滤波器、采用分布式算法的匹配滤波器和折叠式匹配滤波器。

Some of them were ligated to the plasmid vector pCR 2.1 andsequenced,respectively.

将所获DNA片段克隆到pCR2.1载体进行测序，并与基因组数据库进行同源性比较。

Thinking since Google owns Blogger, I would be able to escalate this issue to the support team.

自谷歌的思考拥有Blogger的，我将能够缓解这一问题的支持团队。