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
   variable channel 的翻译结果: 查询用时:0.178秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

variable channel
相关语句
  可变信道
     Comparing with the wired networks, the guaranteed QoS is difficult to get in wireless networks, because of its limited bandwidth and variable channel. Network traffic prediction is important for network control and allocation.
     与有线计算机网络相比,由于无线网络的有限带宽和可变信道,使得无线网络提供业务 服务的QoS保证比有线网络来说更加困难。
短句来源
     It is difficult to obtain the guaranteed quality of service ( QoS) in wireless networks, because of its limited bandwidth and variable channel. Network traffic prediction is important for network control and allocation.
     由于无线网络的有限带宽和可变信道,使得无线网络业务的服务质量保证比有线网络更加困难.通过对无线网络业务超阈值数据采用方差分析法构造阈值v的偏差函数,为阈值选取提供一定的依据;
短句来源
  “variable channel”译为未确定词的双语例句
     Experimental results show that the Nusselt Number in the rectangular channel and the variable channel is 4~6 times and 7 times higher than that in a smooth channel,while flow resistance coefficient was enlarged by about 400 and 600 times.
     实验结果表明,变截面带肋通道的换热效果和流阻都高于等截面带肋通道. 等截面通道和变截面通道相对于光通道而言Nu数分别提升了4-6倍和7倍,但其流阻系数相应的也分别提高了400倍和600倍左右.
短句来源
     One-Dimensional Two-Phase Flow with Variable Channel Cross-Section along Length in Combustion Chambers of Solid Propellant Rocket Motors
     固体火箭发动机燃烧室内一维两相变截面流动
短句来源
     Minimized Entropy Quantization in Bit-Rate Variable Channel
     适用于可变速率的最小熵量化
短句来源
     In the slow time variable channel, based on cyclic reconstruction and tail cancel, a new method for OFDM Turbo detection that does not need cyclic prefix is given.
     针对缓变信道,提出了一种基于循环重构——尾部抵消、无需循环前缀的时频二维OFDM Turbo检测方案。
短句来源
     Based on the analysis of the design theory of emitter, the author puts forward “ variable channel” emitter.
     主要研究结果如下:1、本研究在分析了国内外抗堵塞滴头设计理论和结构特征的基础上,提出一种“可变流道”结构的新型抗堵塞滴头。
短句来源
更多       
  相似匹配句对
     Channel
     水道,海峡,航道
短句来源
     A Variable-Channel Queuing Model
     服务员人数可变动的排队问题
短句来源
     Minimized Entropy Quantization in Bit-Rate Variable Channel
     适用于可变速率的最小熵量化
短句来源
     Excellent Channel
     China Brew & Beverage“一站式渠道”尽显魅力
短句来源
     On Analysis of Variable
     论变量分析法
短句来源
查询“variable channel”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。
  variable channel
This causes large and variable channel access delays, and increases the delay and delay variation (jitter) experienced by ATM cells of VBR traffic.
      
Variable channel slope effects are removed by a longitudinal scaling which applies to all flows down a given channel.
      
Investigation of the characteristics of a plasmotron with a variable channel radius
      
Research on the bit computation model for time variable channel bandwidth
      
We now turn to the problem of dealing with the variable channel in point to point connections.
      
更多          


According to the experiment results of steam-water two-phase flow in variable channel (Steam Injector), the relationships among the outlet pressure of water nozzle and the inlet low-pressure water temperature, flow flux,or the water temperature rise are quantitatively studied. The mathematical formula for the outlet pressure of water nozzle is obtained. Then the pressure-lifting performance calculation model of supersonic steam-water two-phase flow in variable channel is developed. The error between...

According to the experiment results of steam-water two-phase flow in variable channel (Steam Injector), the relationships among the outlet pressure of water nozzle and the inlet low-pressure water temperature, flow flux,or the water temperature rise are quantitatively studied. The mathematical formula for the outlet pressure of water nozzle is obtained. Then the pressure-lifting performance calculation model of supersonic steam-water two-phase flow in variable channel is developed. The error between the calculation result using this model and the experiment result is less than 10%. These are beneficial to the development of the lifting pressure technology with supersonic two-phase flow in channel of variable section.

利用实验数据对变截面通道内渐缩部分超音速汽液两相流压力随进水温度、进水流量和进出口水温升的变化规律进行了定量分析,得出了水喷嘴出口压力的计算方法和定量公式。以此为基础,建立了变截面通道内超音速汽液两相流升压性能的计算模型,该模型的计算结果与实验值的误差小于10%,而且具有一定的通用性。研究结果对超音速汽液两相流升压技术的开发具有重要意义。

In terms of speech transmission over VHF-Mobile radio system, two variable channel-coding schemes with unequal error protection(UEP)are proposed, which are separately based on rate-compatible punctured convolution(RCPC) code scheme and rate-compatible punctured turbo(RCPT) code scheme. With optimum puncturing designation and suitable scheme of rate matching, these two UEP schemes can achieve intra-class unequal error protection, which makes the protection for source bits with different importance more...

In terms of speech transmission over VHF-Mobile radio system, two variable channel-coding schemes with unequal error protection(UEP)are proposed, which are separately based on rate-compatible punctured convolution(RCPC) code scheme and rate-compatible punctured turbo(RCPT) code scheme. With optimum puncturing designation and suitable scheme of rate matching, these two UEP schemes can achieve intra-class unequal error protection, which makes the protection for source bits with different importance more accurate. This paper also presents its real time implementation based on a TMS320C6416 digital signal processor. The experimental results show that this method has reasonable system complexity and short processing delay, and can be turned into practical application in speech service.

对于超短波移动通信系统中AMR语音业务的传输,提出了基于码率兼容的删余卷积码和码率兼容的删余Turbo码这2种可变的不等差错保护信道编码方案。通过设计最优的删余方案和合适的速率匹配方法,这2种不等差错保护方案都可达到类内不等保护的目的,将对具有不同重要性的信源比特的作更精确不等保护。并基于DSP芯片TMS320C6416实时实现了这2种方案对AMR语音的不等差错保护。实验结果表明,这种方法具有合理的系统复杂度和很短的处理延时,适合于语音业务的应用。

The LDPC code, which is the core channel coding in DVB-S2, takes variable rate to adapt to variable channel conditions. Threshold is an important parameter to decide which rate is the best for special channel conditions. In this paper, we present a new way to get the threshold of LDPC codes, i.e. we use EXIT chart to gain it. After lots of numerical simulations, we find that the thresholds got from EXIT chart are very close to those obtained from density evolution. And this method can reduce the...

The LDPC code, which is the core channel coding in DVB-S2, takes variable rate to adapt to variable channel conditions. Threshold is an important parameter to decide which rate is the best for special channel conditions. In this paper, we present a new way to get the threshold of LDPC codes, i.e. we use EXIT chart to gain it. After lots of numerical simulations, we find that the thresholds got from EXIT chart are very close to those obtained from density evolution. And this method can reduce the amount of calculation. At the end of the paper, we introduce the application of variable channel coding used in DVB.

DVB-S2的核心编码LDPC码采用不同的码率来适应不同的信道条件,阈值分析是信道条件和码率选择的关键,介绍了用EXIT曲线图法来进行阈值分析,该方法比密度进化法计算量大大减少,使得阈值分析变得更加简单,还介绍了可变码率信道编码在DVB中的应用。

 
<< 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variable channel的内容
在知识搜索中查有关variable channel的内容
在数字搜索中查有关variable channel的内容
在概念知识元中查有关variable channel的内容
在学术趋势中查有关variable channel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