查询词典 frequency bandwidth

To improve the multimedia communication performance, the bandwidth allocation problem of contention bandwidth is one of the keys to success.

为了增进IEEE802.16e 在传输多媒体资料时的系统效能，频宽配置问题是成功的主要关键之一。

A solution to dynamic bandwidth allocation, by using the automatic connection function and the Link Capacity Adjustment Scheme protocol, is also provided, which can meet the demands of dynamic bandwidth requirements for data and multimedia services.

文章讨论了智能化的MSTP设备的构造模型：对等模型和重叠模型，并给出了一个为满足数据和多媒体业务的带宽动态变化需求，利用自动连接功能和链路容量调整协议动态带宽分配的解决方案。

The antenna has a composite structure of a cage and an asymmetric biconical structure. The impedance bandwidth and radiation pattern bandwidth are enhanced, and the tilting and ripping of radiation patterns are eliminated.

将笼型与不对称双锥结构相结合，展宽了天线的阻抗和方向图带宽，抑制了天线辐射方向图在宽频带内上翘或裂瓣。

Then three candidate modulation schemes exploiting spatial dimensions are proposed. At last, the three modulation schemes are compared by power efficiency and bandwidth efficiency. It shows that spatial quadrature amplitude modulation scheme is appropriate for long distance wireless optical communications for its high bandwidth efficiency and spatial circular symmetry.

参照传统时域信号设计方案，提出了三种空间调制信号具体设计方案，并从带宽效率和功率效率两性能上进行了比较，结果表明正交幅度调制具有带宽效率高、功率效率低的特点，而且采用的信号点越多其带宽效率就越高，另外其空间信号图案还具有圆对称性，因此非常适合在空间带宽有限的远距离无线光通信中使用。

Adaptive weighted scheduling scheme to provide fair excess bandwidth allocation among service classes: Current fixed weighted scheduling in DiffServ can not respond to the changes of traffic load cither provide fair bandwidth to each flow in AF and BE services. This thesis proposes an adaptive scheduling scheme, which can be combined to any weighted scheduling algorithm.

支持多服务队列间带宽分配公平性的自适应加权调度机制：针对固定权值调度在网络负载发生变化时不能为各服务队列提供公平带宽分配的问题，本文提出了一种可与各种加权调度算法联合部署的加权调度机制。

Bandwidth Vista offers a real-time bandwidth graph that can optionallyindicate the origin of the connections on a world map display, and includes a dynamic tray icon that indicates current network activity.

Bandwidth Vista 提供了一个可以在一个世界地图显示上随意地显示连接起点的实时带宽图表，并且包括一个显示当前网络活动的动态系统托盘图标。

Among them, the expenditure that buys bandwidth is the biggest, you must want to understand adequately, if your bandwidth is insufficient, the person of dibble seeding serves quality to be affected in front, the person from the back also cannot see, want somebody to be no good only, everybody can be no good.

其中，买带宽的花费是最大的，你必须要充分的明白，如果你带宽不够的话，前面点播的人服务质量受到影响，后面的人也看不到，只要有人不行，大家都会不行。

It is important to transmit the images in the magazines to every printing distributer immediately and images take up the net bandwidth less.It will increase net transmission action in the same net bandwidth.The paper aims at the upwards problem.

及时有效地把报刊杂志文字和图像传输到全国各地的印刷分点就显得额外的重要，并且传输的文字和图像占据的网络带宽小。

Improve algorithm to adjust the window of every phase as close as position of bandwidth estimation, network connection to rise, combinative network position and bandwidth estimation judge the rationality of congest window, adjust congest window dynamicly, when making congest is about to happen, the window can drop in time appropriate level, avoid what bring about as a result of congest to be lost in group as far as possible.

改进算法将每个阶段的窗口调整和带宽估计、网络状态紧密联系起来，结合网络状态和带宽估计判定拥塞窗口的合理性，动态地调整拥塞窗口，使拥塞即将发生时，窗口能及时下降到适宜的水平，尽量避免由于拥塞而导致的分组丢失。

Numerical results show that the handoff queuing schemes can greatly reduce forced termination probability and the bandwidth utilization can be improved by 26% compared to the handoff channel reservation scheme with high blocking probability and low bandwidth utilization.

数值结果分析表明，提出的两种切换请求排队方案是降低系统强制中断率的有效方法，且可克服切换信道预留机制阻塞率高、信道利用率低的缺点，信道利用率最多可提高26%。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

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