查询词典 frequency bandwidth

It improves the performace of Uplink bandwidth utilization and reduces bandwidth waste,improves QoS of the system .

算法提高了上行信道的带宽利用率，减少了带宽的浪费，提高了系统的QoS保证。

It is also possible to set auto range operation only one or two out of resolution bandwidth, video bandwidth and sweep time.

它也有可能设定自动的远程作战只有一个或两个号决议的带宽，视频带宽和扫描时间。

The current second-generation and third-generation (3G) mobile communication systems operate with narrow audio bandwidth limited to 200-3400Hz.As wireless systems are evolving from voice-telephony dominated services to multimedia and high-speed data services, the introduction of a wider bandwidth of 50–7000 Hz speech codec which provides substantially improved speech quality and naturalness is quite necessary. The Adaptive Multi-rate Wideband speech codec which was selected by 3GPP/ETSI and ITU-T can provide natural, present and comfortable codec speech and have higher intelligence and robustness in wireless systems. A wide range of applications are envisioned for AMR-WB, including ISDN wideband telephony and audio/video teleconferencing,Voice over IP and Internet applications such as IP video conferencing, voice mail, voice chat, broadcast, and voice streaming.

随着现代无线通信特别是多媒体通信的发展，人们对语音通信的质量要求越来越高。3GPP/ETSI TS026和ITU-T 722.2标准确定的自适应宽带语音编解码器AMR-WB具有的低比特率、互操作性和高语音质量，使之不仅能够应用于无线通信领域，而且可广泛应用于其他各种通信系统和平台，包括：VoIP、因特网、PSTN高质量音频会议、音频流、ISDN宽带电话、ISDN可视电话和电视会议等。

The roaming STAs can get enough bandwidth to maintain the QoS in the new AP by the bandwidth reservation mechanism of ELB.

而进行漫游的使用者，在我们的机制下，经由在新的AP上的频宽预先保留，也可以维持一定的服务品质。

Instead of prioritizing bandwidth allocation, users can inexpensively overprovision bandwidth when they need to support delay-sensitive traffic such as voice and video.

当用户需要支持对延迟敏感的流量，如声音和视频图象时，他们可以廉价地获得很大的带宽，而不用对带宽进行优先等级分配。

Instead of prioritizing bandwidth allocation, users can inexpensively overprovision bandwidth when they need to support delay-sensitive traffic such as voice and video .

当用户需要支持对延迟敏感的流量，如声音和视频图形时，他们可以廉价地获得很大的带宽，而不用对带宽进行优先等级分配。

Therefore, with regards to the cases of the application to the streaming media on the demand of the real time quality and the contradiction of the inadequate bandwidth of the present Internet, the article analyzes the unbalance QoS controling strategies from the viewpoint of the predistribution of bandwidth, the streaming dispatching, the handling of the data losing, and the processing mistakes and so forth, taking advantages of the unbalance on the distriution importance of the streaming media data, to guarantee the real time of the important data.

为此，针对流媒体应用的实时性要求和当前Internet带宽不足的矛盾，本文利用流媒体数据中重要性分布的非均匀，从带宽预分配、流调度、丢包处理、错误处理等多方面进行非均匀的QoS控制策略，保证重要数据的实时性。

Through the spectrum shaping, the bandwidth of the regeneratively amplified pulse was increased from approximately 20 nm to approximately 35 nm, which is near the bandwidth of the seed pulse.

另外用镀反射膜的平板滤光片进行了腔外光谱整形的实验，使再生放大器输出脉冲谱宽展宽到28 nm左右。

This approach determines the downlink and uplink sub-frames by reserving the bandwidth for the most urgent requests and then proportionating the remaining bandwidth according to the non-urgent ones.

在上下行频宽的动态调节中，分别优先保留最急迫需求的频宽，接著根据上下行个别不急迫的需求量比例地分配剩余频宽。

To accommodate the current situation that nodes can frequently join and leave the overlay session, this paper presenta a load balancing algorithm based on the link available bandwidth. This algorithm utilizes the known knowledge of the physical topological structure, chooses the routing path that has the least effect on the available bandwidth among multiple routing paths, so as to obtain a lightlyloaded overlay edge.

针对节点频繁地加入和退出覆盖会话的现状，本文设计了基于链路可用带宽的负载均衡路由算法LBR，利用已知的物理拓扑知识，在多条路由路径中选择一条对网络可用带宽影响最小的路由路径，得到轻负载的覆盖边。

Smoking cigarettes adds to the Computer Desk Computer manufacturer computer mouse Computer Computerized collar knitter machine Conduit Bodies construction board Container Bag Control Arm Cooking Thermometer general levels of air pollution as well as damaging our health.

吸烟不仅对健康有害，而且增加空气污染程度。香烟雾含有多种有害物质：不仅有致癌化学物质、有某种能阻止氧气进入血液的气体，还有引起血压增高、心速加快的被称为尼古丁的物质。

He is one of my favorite actors.

他是我最喜欢的男演员之一。