查询词典 bandwidth

The main content of this dissertation includes: 1. Research on the theory of ultrasonic power supply, introduce its development process. On the basis of these, fix on the scheme of medical ultrasonic low-power supply. 2. According to the principle of modularized design, divide medical ultrasonic low-power supply into four parts. They are power amplify circuit, power control circuit, frequency automatic tracking circuit and matching circuit. Separately research on their theories and design their circuits and necessary programs, especially, effectively resolve the problem tracking the supersonic vibration system with a narrow syntony frequency bandwidth and a high swing. 3. The matching experiments gain good result, and prove that medical ultrasonic low-power supply is entirely up to the mustard on intellectualization, wide band of working frequency, steady output and high efficiency.

本文工作的主要内容包括： 1、研究了超声功率电源的原理，并回顾了它的发展过程，在此基础之上确定本文医用小功率超声电源的设计方案； 2、按照模块化的设计原则，将医用小功率超声电源的设计分解为功率放大电路、功率控制电路、频率自动跟踪电路和匹配电路等四个部分，分别研究了各部分的原理，在此基础之上进行了具体的电路设计和程序设计，尤其是有效地解决了对谐振频率带宽窄振幅高的超声振动系统的频率跟踪问题； 3、通过与超声振动系统的各项配合实验，取得了很好的实验结果，验证了医用小功率超声电源完全满足智能化、工作频带宽、输出功率稳定、输出效率高的设计要求。

The study demonstrates that there are four ways to expand the bandwidth of servo control system of the electro-optical theodolite: 1 Improving the free vibrancy natural frequency of optical-electronic theodolite; 2 To compensate the structural syntony ; 3 Using electric current feedback; 4 Using acceleration and velocity feedback.

研究表明，提高光电经纬仪伺服控制系统带寛有4个途径：1）增大光电经纬仪固有频率；2）对结构谐振进行补偿；3）使用电流反馈；4）使用加速度和速度反馈等。

In EEPGR, nodes with more residual energy take priority of participating in routing to balance the energy consumption over the network, meanwhile, the others are confined to save energy and bandwidth resource.

它通过让剩余能量较多的节点优先参与路由建立过程以平衡网络的能量消耗和保证业务的顺利传输，并限制其余节点的参与来节约能量和带宽资源。

What is the channel capacity for a teleprinter channel with a 300-Hz bandwidth and a signal-to-noise ratio of 3 dB, where the noise is white thermal noise?

一个电传打印机的带宽是300Hz，信道内所传信号的平均功率与白热噪声功率的比值为3分贝，问其信道容量是多少？

Differ with television relay and video short, go up to still be belonged to as a result of the history through concert of network direct seeding first, the dimensions of televiewer is beforehand OK estimation arrives, but how many can Internet user have to do not have a basis completely after all, and the bandwidth of Internet user number and direct seeding and server preparation are direct and relevant.

与电视转播和视频短片不同，通过网络直播演唱会由于历史上尚属首次，电视观众的规模是事先就可以估算到的，但互联网用户究竟会有多少完全没有依据，而互联网用户数与直播的带宽及服务器准备直接相关。

Slow Scan Television : Television operating in a narrow bandwidth using any classes of emission ending in F.

慢扫描电视︰在窄带宽中采用任何以「F」作结的发射类别的电视。

At the same time, for the core module which is responsible for light field reconstruction—texture mapping unit,this paper proposes an FPGA design.In the implementation,there is an optimized hardware design of texture Cache through utilizing accessing methods based on 4×4 compressed texel block.The above optimization makes full use of the relationship between pixels,so the rate of Cache shooting becomes higher and the demand of bus bandwidth becomes lower.

同时针对解码器中负责光场重建的核心单元——纹理映射单元，提出了一种FPGA设计方案，对其中的纹理存储单元进行了优化设计，采用了基于4×4压缩纹素块的存取方式，充分地利用了像素间的相关性，提高Cache的命中率，减少了对总线带宽的需求。

The results indicate that there is a best loop bandwidth to make the lock time smallest.

这些结果已用于微小型化星载测控应答机设计中，并得到实验的验证。

Faced with the increasingly complex network topological connection and gradually increased network flow, network manager needs to know online such network activity information as the network flow of each network section, network bandwidth availability and the early warnings of hardware breakdown and software failure.

面对益复杂的网络结构与逐渐增加的网络流量，网络管理者需要实时了解各个网段的流量情况、网络带宽的使用率、硬件故障与软件失误的预警等网络运行信息，要做到这点，最有效的办法就是在原有的网络硬件基础上构建一个网络管理系统以实现对全网的监控。

Local Ethernet is used widely so that the data transmission channel bandwidth is ensured.

广泛使用的局域以太网，使数据传输通道带宽得到了充分保障。

The French are not suggesting a new EU treaty, but they have plenty of other wheezes.

法国人并不是在建议签署一个新的欧盟条约，但他们有许多其他的阴谋。

This letter was written by my brother.

这封信是我弟弟写的。