助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   bandwidth 的翻译结果: 查询用时:0.076秒
图标索引 在分类学科中查询
所有学科
电信技术
无线电电子学
互联网技术
物理学
数学
自动化技术
电力工业
计算机软件及计算机应用
仪器仪表工业
更多类别查询

图标索引 历史查询
 

bandwidth     
相关语句
  带宽
     Bandwidth Dynamic Allocation and QoS Control for Broadband Networks
     宽带网络的带宽动态分配与QoS控制
短句来源
     Research on Fairness of Bandwidth Sharing for Internet QoS
     Internet QoS中带宽共享的公平性研究
短句来源
     Research on Key Technologies of Fairness Guarantee for Bandwidth Sharing
     带宽共享公平性保证的关键技术研究
短句来源
     The Research on the Model and Algorithm of Bandwidth Measurement in IP Network
     IP网络带宽测量的模型与算法的研究
短句来源
     Bandwidth Efficient Algorithms and Routing Protocols for Tactical Mobile Ad Hoc Networks
     战术移动自组网络带宽有效算法与路由协议研究
短句来源
更多       
  带宽
     Bandwidth Dynamic Allocation and QoS Control for Broadband Networks
     宽带网络的带宽动态分配与QoS控制
短句来源
     Research on Fairness of Bandwidth Sharing for Internet QoS
     Internet QoS中带宽共享的公平性研究
短句来源
     Research on Key Technologies of Fairness Guarantee for Bandwidth Sharing
     带宽共享公平性保证的关键技术研究
短句来源
     The Research on the Model and Algorithm of Bandwidth Measurement in IP Network
     IP网络带宽测量的模型与算法的研究
短句来源
     Bandwidth Efficient Algorithms and Routing Protocols for Tactical Mobile Ad Hoc Networks
     战术移动自组网络带宽有效算法与路由协议研究
短句来源
更多       
  频带宽度
     When the ratio of carbon nanotubes and epoxy resin was 1∶100,the maximum absorbing peak of the composite obtained was 10.01dB at 14.32GHz and had a bandwidth of 2.16GHz(R<8dB)with 3 mm thickness.
     碳纳米管和环氧树脂比例为1∶100时,3mm厚吸波层试样吸波峰出现在14 32GHz,吸波峰值R=-10 01dB,吸波频带宽度为2 16GHz(R<8dB)。
短句来源
     Simulation with 0.6μm CMOS process models shows that the output resistance of the novel current source can reach the order of 10~9Ω with a 1.04GHz bandwidth and only 10.6ppm/℃ in the range of -40~145℃.
     基于0·6μm的CMOS工艺模型,仿真所得电流源的输出阻抗可达109Ω,同时,该电流源频带宽度为1·04GHz ,在-40 ~145℃之间,电流源的温度系数只有10·6ppm/℃.
短句来源
     The Analysis of Intracavity Acoustooptical Modulation Bandwidth for 10.6 μm Laser
     10.6μm腔内声光调制频带宽度的分析
短句来源
     Bandwidth of the sensor is 300 MHz with SNR 50.
     该传感器的频带宽度为300MHz,信噪比为50。
短句来源
     and the stalk shall be 150-200 gf, and the frequency bandwidth within ±50 gf.
     认为籽粒和粒柄间的平均抗拉强度以150~200gf为好,频带宽度应在±50gf范围内。
短句来源
更多       
  带宽度
     2. The thickness of the films of La_(2/3)A_(1/3)MnO_3 (A=Ca, Sr, Ba) was measured from the elliptic spectrum, and the refractive index of the films was calculated, and also the bandwidth was estimated.
     2.用椭圆光谱法测量了La_(2/3)A_(1/3)MnO_3(A=Ca、Sr、Ba)薄膜的厚度,计算了薄膜的折射率色散关系,同时估计了薄膜的禁带宽度
短句来源
     When the ratio was 5∶100,the maximum absorbing peak of the composite obtained was 13.89dB at 7.91GHz and had a bandwidth of 3.19GHz(R<8dB)with 3 mm thickness.
     比例调整为5∶100时,波峰出现在7 91GHz,峰值加大到R=-13 89dB,带宽度达到3 19GHz(R<8dB)。
短句来源
     SnO_2 is a wide-band oxide semiconductor with a bandwidth of 3.6~4.0eV and a tetragonal rutile crystal structure.
     SnO_2是一种对可见光透明的宽带隙氧化物半导体,禁带宽度3.7-4.0eV,具有正四面体金红石结构。
短句来源
     1. For a certain apodization function, the band width, steepness of the band
     1. 对于同一切趾函数,光栅反射谱的禁带宽度、禁带边缘陡峭性和旁瓣
短句来源
     Under one dimensional space, analytic expressions of strain plasticity and the strain localization band width are obtained.
     在一维条件下,本文得到煤岩材料在单轴压缩条件下塑性应变的解析表达式,给出了变形局部化带宽度的计算公式;
短句来源
更多       

 

查询“bandwidth”译词为其他词的双语例句

 

查询“bandwidth”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  bandwidth
The best windows for the purpose of localized spectral analysis have their energy concentrated in the region of interest while possessing the smallest effective bandwidth as possible.
      
The paper proves that if G is a k-tree, then the bandwidth B of the complement of G is given by
      
The cyclic bandwidth sum problem is to determine a labeling of graph G in a cycle such that the total length of edges is as small as possible.
      
In this paper, some upper and lower bounds on cyclic bandwidth sum of graphs are studied.
      
A relation with the bandwidth is discussed as well.
      
更多          


With the rapid progress of the electronic art, there has been a steadily increasing demand for still wider-bandwidth amplifiers. The recent introduction of distributed amplification concept has provided a new technique and powerful means for designing amplifiers with top cutoff frequencies far in excess of those previously obtainable with,ordinary amplifier circuits. A distributed amplifier of the low-pass type can easily be constructed to have a uniform frequency response from audio frequencies to frequencies...

With the rapid progress of the electronic art, there has been a steadily increasing demand for still wider-bandwidth amplifiers. The recent introduction of distributed amplification concept has provided a new technique and powerful means for designing amplifiers with top cutoff frequencies far in excess of those previously obtainable with,ordinary amplifier circuits. A distributed amplifier of the low-pass type can easily be constructed to have a uniform frequency response from audio frequencies to frequencies as high as several hundred me using conventional vacuum tubes. Unlike conventional circuits, distributed amplifiers have an attainable gain-bandwidth product which is not limited by shunt capacitance associated with the vacuum tubes and circuit wiring; the high-frequency limit being determined entirely by high-frequency effects within the tube proper.The purpose of this paper is to describe the basic principle of distributed amplification and to show how such an amplifier employing various types of transmission lines may be designed. Practical methods hi design and design details are given for a three-stage distributed amplifier, using fourteen 6AK5 pentodes with a frequency response of 0.1 mo to 140 mo and a gain of 33±1 db.Both the negative mutual-inductance m-derived and constant K artificial delay lines hare been used. The former offers the advantage of a more linear phase characteristic and a more uniform response both in amplitude and delay time.The experimental results corroborate the predictions based on the first-order theory described in this paper.

分布式放大是最近宽频带放大的最大成就,过去多年来电子学所应用的各种宽频带放大方法,其高频部分因受电子管电容和线路的分布电容所限制,不能获得理想的结果,而利用分布式放大的理论,所制成的宽频带放大器,远较一般普通的宽频带放大器,有更为宽阔的频带;从它的设计和构造上来看,也较负反馈的宽频带放大器为简单。制造一架自数千周至数百兆周的分布式放大器,在技术上并没有很大困难。本文拟对分布式放大的原理作扼要的分析;并提出了采用各类型仿真线所构成的分布式放大器的设计方法,并利用该设计方法,试作了一只三级十四管的分布式放大器,其增益为33±<1分贝,频宽自100千周至140兆周。由实验结果证明,采用m导出式低通滤波器所构成的仿真线的分布式放大器,实较用常K式者,具有更佳的相移特性和频率特性,这与理论上的分析是一致的。

The results presented in this paper may be classified into three categories. First, there is derived the characteristics of gain, bandwidth, and figure of merit of a non-degenerative parametric amplifier of both fundamental and sub-harmonic pumping; and the comparison between them is carried out in substantial detail. Second, there is devised an analytical method for determining the harmonic contents of the capacitance of a nonlinear semiconductor diode, which is negatively biased and is under the action...

The results presented in this paper may be classified into three categories. First, there is derived the characteristics of gain, bandwidth, and figure of merit of a non-degenerative parametric amplifier of both fundamental and sub-harmonic pumping; and the comparison between them is carried out in substantial detail. Second, there is devised an analytical method for determining the harmonic contents of the capacitance of a nonlinear semiconductor diode, which is negatively biased and is under the action of a strong high frequency pumping voltage. The magnitudes of bias and pumping voltage are thus found quantitatively. Also, the stability requirements for pumping amplitude and pumping frequency are discussed. Third, the noise figure of a parametric amplifier itself and the effective noise figure of the amplifier loaded with a noisy second stage, which may be a frequency converter, are derived. Factors such as diode loss, match, and the bandwidth ratio of the signal to the idler circuit are all considered in the derivations so as to make the results with greater importance for practical applications. Finally, a numerical example is given to show the utility of the results presented in this paper and to illustrate a possible design procedure of a non-degenerative parametric amplifier.

本文主要结果有三:第一,推导出基波激励和次谐波激励参量放大器的优值、功率增益、和通带等主要特性,并就这些特性对基波激励源的和次谐波激励源的参量放大器进行比较;第二,通过半导体二极管非线性电容的谐波分量的分析,在激励电压、偏压和放大器的特性间得出定量关系,并且对给定放大器特性求出激励源幅度和频率的稳定要求;第三,推导出放大器的有效噪声,并给出最低有效噪声的设计条件。 以上特性的探讨和二极管损耗、信号迴路和镜象迴路通带比、匹配等因子结合在一起进行,使所得结果更具有实际意义。最后举出一数字例子,说明应用本文结果来设计参量放大器的一种可能步骤。

The effective noise figure of a nondegenerative parametric amplifier, loaded with a noisy second stage, is derived and expressed in terms of the coupling factor and the normalized negative conductance. The optimization of the effective noise figure of the system is then discussed in detail. The gain of the amplifier is also given in terms of the coupling factor and the normalized negative conductance, the relationship between the gain and the effective noise figure is thus found. An upper limit of the bandwidth...

The effective noise figure of a nondegenerative parametric amplifier, loaded with a noisy second stage, is derived and expressed in terms of the coupling factor and the normalized negative conductance. The optimization of the effective noise figure of the system is then discussed in detail. The gain of the amplifier is also given in terms of the coupling factor and the normalized negative conductance, the relationship between the gain and the effective noise figure is thus found. An upper limit of the bandwidth of the amplifier is established in view of the optimum noise performance. Finally, a method of synthesis is suggested with numerical illustrations.

本文首先推导了级联着一个噪声很高的次级的参量放大器系统的有效噪声系数,并且用耦合系数和规一化负电导来表示;然后详细地讨论了这个有效噪声系数的最佳化问题。因为放大器的增益也可用耦合系数和规一化负电导来表示,因此在增益和有效噪声间获得一个单值关系式。从最佳噪声运用角度出发建立了放大器通带的上限值。最后,提出一个新的综合方法,并用数字例子作说明。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关bandwidth的内容
在知识搜索中查有关bandwidth的内容
在数字搜索中查有关bandwidth的内容
在概念知识元中查有关bandwidth的内容
在学术趋势中查有关bandwidth的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社