查询词典 secure communication

But many problems still unresolved due to the disaccord of the electrical communication protocols which relevant to the types of ammeters, communication channels, and bring the disadvantage to the electrical charge systems integration, maintenance and upgrading. For solving the interoperation of power communication protocols, DLMS UA proposed a new communication protocol called DLMS /COSEM which world widely used and accepted as international standard by IEC and TC13 in recently years. The research in this area has just begun in China.

但是，这些系统由于选用的电能表型号不同、通信信道类型多种多样，而造成电能表通信协议不统一，给集中抄表带来了系统集成、维护和通信信道维护及升级困难等诸多问题，为了解决电能表通信协议的互操作性问题，DLMS用户协会提出了一种新的通信协议—DLMS／COSEM，目前已由IEC、TC13采纳作为国际标准，近年来在全世界范围得到了应用，我国在这方面的研究刚刚起步。

Due to the carrier communication of the power line,leakage radio communication,induction communication and other the radio mobile communication technologies existing many problems,they are all not applied to mine.

由于动力线载波通信、漏泄无线通信和感应通信等无线移动通信技术存在问题较多，没有在矿山普及。为了实现矿区地面与矿山井下之间的无线通信，研究了小灵通、大灵通和第三代移动通信技术(3G)等在矿山无线移动通信中的应用。

Especially in military affairs, it is the vital part in military operations. Short-wave communication is attractive because only little power and proper expenditure is needed when it is used for long distance communication. For this valuable trait, many country have expanded the area of short-wave communication's research, thus there has become more and more new-model communication system.

短波通信之所以能吸引用户用它传递信息，最基本的原因是由于进行远距离通信时，仅需要不大的发射功率和适中的设备费用，这一宝贵的优点，使得世界各国近年来加紧了短波通信的研究，出现了各种新型的短波通信系统。

It's a scientific communicate method and theory, base on semiology which contribute its focus on individual communication experience and social communication, the corporate communication will appear the advantage in communication domain.

作为科学的宣传方式和传播理论，符号学理论研究个体与社会的信息交流，企业传播将日渐显示出其在传播方面的优势。

An antenna device and a portable wireless communication apparatus are disclosed to securely lower a local average SAR in correspondence to at least two or more kinds of radio communication systems using different radio communication frequencies even when any radio communication frequency is used.

公开了一种天线装置和便携式无线通信装置，即使在使用任何无线通信频率的时候，也能安全降低对应于至少两种或多种无线通信系统的局部平均SAR。

The service provider performs the following steps: receiving a request from a customer to establish communication with another customer; confirming the identity of each customer; transmitting to each customer executable code enabling encrypted communication therewith; obtaining from each customer information regarding the customer's computing environment; preparing a set of applications for use by each customer, in accordance with the customer information and the customer's request; transmitting the set of applications as executable code to each customer; establishing a communication path to each customer; and specifying the communication path to the customers, thereby permitting the customers to communicate over the path using those applications.

服务提供商执行以下步骤：接收从一个客户发出的与另一个客户建立通信的请求；确认各个客户的身份；向各个客户发送能实现加密通信的可执行代码；从各个客户处获得关于客户计算环境的信息；按照客户信息和客户请求，准备一组应用程序供各客户使用；把这组应用程序作为可执行代码发送给各客户；建立与各客户的通信通道；向客户说明通信通道，从而允许客户使用那些应用程序在该通道上进行通信。

In the last new years , as the demands of wireless communication system grows rapidly , the bands of microwave frequency had been saturated with various communication applications . To achieve wider spectrum for high-speed and high-capacity transmission , bands of millimeter-wave frequency are the solution of this problem . The advantage of MMW wireless communication systems is wider bandwidth comparing with microwave communication systems . To utilize the spectrum efficiently , many methods of complexly digital modulation is proposed . The more complex modulation , the higher linearity is required , and more various phase of signals are required to accomplish process of modulation . Therefore high-linearity and quadrature-phase modulator and demodulator are the emphasis of this thesis . For high level of integration , high performance and low cost , this chip is fabricated by the complementary oxide semi-conductor 0.13um process . A compact size of direct down-conversion and direct up conversion circuits will be presented in this thesis .

近年来随著无线通讯产业的蓬勃发展，微波频带已经趋近於饱和，为了追求更宽的频谱来达到更快传输速率及高资料容量的传输，宽频的毫米波频段提供了解决此问题的途径，毫米波无线通讯系统提供了相对於微波通讯系统宽频的优点，且为了更有效的使用频谱，各种不同且复杂的数位调变方式及方法被发表出来，越复杂的调变方式其所需的线性度越高，且需要更多不同的相位讯号来完成调变的过程，因此高线性度及四相位的调变及解调器将是此篇论文的研究重点，为了达到高整合性，高效能，及低成本的电路设计，我门利用互补式金氧半导体制程来完成此电路设计，因此一小面积的直接降频(Direct down-conversion)及直接升频(direct up-conversion)电路将在文中介绍。

The speech secure communication is a kind of communication method that keeps the speech contents from burglarize to hear, it have the biggest practical value on the military and businesses..

语音保密通信是防止语音内容被窃听的通信方式，在军事和商业上具有极大的实用价值。

Real-time chaotic secure communication system synthesize the new research achievement of nonlinear theory, cryptology and communication technology, and it will be applied widely in the field of information security.

由于实时混沌保密通信系统综合了非线性理论、密码学以及通信技术的新成果，将在信息安全中具有广阔的应用前景。

In the modern communication society, there is wide spread need of secure transmission of secret information, such as the commercial trade and the communication in network, which need to be on the guard of the attack of the eavesdropper.

当今信息社会对于保密信息的安全传输有着广泛的需求，商业贸易、网络通信等都需要防范窃听者的侵入。

They experience feelings deeply and intensely, and their emotions are often mercurial.

他们的感情深刻而强烈，情绪善变。

Surrounded with or as if with a rampart.

用城墙围绕的用城墙围绕的或类似于为城墙围绕的