数字传输

In digital communication system,in order to ensure the data be transferred correctly,the error control mechanism is adopted.

在数字通信系统中，为保证数据传输过程的正确性，需要对通信过程进行差错控制。

In this paper the basic structure and working principle of VFT are presented and a mathematical model of VFT is built, and the functional relation between the transmission power and driving torque of VFT are derived. On this basis, the control strategy and the thinking of its simulation are proposed.

文章简要介绍了VFT的基本结构和工作原理，建立了VFT的数学模型，推导了VFT传输功率与驱动转矩之间的函数关系，在此基础上提出了VFT的控制策略和数字仿真思路。

Another proofing technology is known as Laser Ablation Transfer digital halftone proofing.

另一个打样技术被称为激光烧蚀传输中的数字半色调打样。

The stability problems are analyzed and discussed. The optimal control problem is formulated to determine the necessary conditions for optimality in networks. Three theorems about the properties of the steady state-costate solution in Hamilton function are confirmed leading to the natrual meaning and the optimal policy which can be implemented in practice. In chapter Ⅴ, the methods for nonstationary simulation of computer networks are discussed.

第四章表述了计算机通信网动态特性研究的主要数字方法；提出了排队与随机存取机制、网络链路传输和节点分流的状态空间模型，并作了稳定性研究；应用最优控制理论得到网络最优控制的必要条件，证明了哈密尔顿函数协状态变量的稳定解性质，据此研究分析了网络最优控制的本质意义及实现途径，并给出计算及建模实例。

The experiment results show that the proposed reversible watermarking method has good imperceptibility.

在此基础上，进一步结合PKI技术，研究了基于可逆数字水印的医学图像网络传输流程。

For example, a 56 Kbps circuit is typically a 64 Kbps digital circuit with 8 Kbps used for signaling.

例如，56 Kbps电路是一根64 Kbps数字电路，其中8 Kbps用于信令传输。

Show to list the word carrier machine and simulated carrier machine of entire quantity on transmission capacity comparison.

全数字电力线载波机在占用4kHz线路频带不变的前提下，成倍地扩展了传输容量。

Along with the development of the electronics, micro-electronics, computer and communication technology, digital image has become the main information storage and transmission way.

随着电子、微电子、计算机和通信技术的发展，数字图像已经成为图像信息存储和传输的主要方式之一。

Established over the past few years to research and development, operating under the brand ABR Series Digital Video Recorder product as the core, and constantly expand and improve the relevant Security Products has been formed from a front-end equipment, transmission equipment to the master terminal device into a complete product system.

公司成立几年来，以研发、经营ABR品牌下系列数字硬盘录像产品为核心，不断扩充和完善相关安防产品，现已形成一套从前端设备、传输设备到主控终端设备为一体的完整产品体系。

In the described system, in order to transmit the narrow-band analog signals or low speed digital signals at any time and under any climatic condition, sun-blind-region ultraviolet is used as information carrier, the modulated low voltage mercury-vapor lamp is used as emission device.

所描述的系统是以日盲区紫外光作为信息载体的，用被调制的低压汞蒸汽紫外放电灯作为发射器件，以日盲型滤光片和光电倍增管或日盲型紫外光电倍增管作为接收器件，以达到在任何时间和在任何气候下完成窄频带模拟或低速数字信号的传输。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。