同步通信

This paper brought forward the method of quick scanning self_synchronization being adapted for the short_wave hopping communication based on the method of waiting and searching self_synchronization,and worked out the principle architrave of the system to realize it .

在研究了等待搜索式自同步方法的基础上，提出了适用于短波跳频通信的快速扫描式自同步方法，设计了实现该同步方法的系统原理框图。

This paper brought forward the method of quick scann ing self_synchronization being adapted for the short_wave hopping communication based on the method of waiting and searching self_synchronization,and worked ou t the principle architrave of the system to realize it .

在研究了等待搜索式自同步方法的基础上，提出了适用于短波跳频通信的快速扫描式自同步方法，设计了实现该同步方法的系统原理框图。

First, mathematical foundation of synchronization, i.e. the theory of parameter estimation is introduced. Then, DA/DD or NDA timing synchronization methods based on the ML estimation of timing parameter are presented. They are all widely applied in actual digital communication systems. Interpolation theory in digital signal processing has application in timing synchronization, which makes the sampling clock independent of the timing control so that timing adjustment is realized completely through digital disposal. The issue of interpolation in timing synchronization is discussed.

首先，介绍了定时同步实现的数学基础，即信号参数估计理论；从定时参数的最大似然估计出发，介绍了基于数据辅助的定时同步方法和基于非数据辅助的定时同步方法，他们在实际的数字通信系统中均有广泛应用；论文探讨了数字信号处理中插值理论在定时同步中的应用，它使得接收端的采样时钟独立于定时控制，定时调整完全通过数字处理方法得以实现。

A parallel computing model is presented, based on migration-dependency. A Scalable Parallel Run-time Library is developed to solve all the key difficult problems such as dynamic data dependency analysis, synchronization, communication, and load balancing.

提出了基于迁移相关的DSMC并行计算模型，采用了可扩展并行运行时库(Run—time Library)来解决程序运行过程中动态的相关性分析、同步通信、负载平衡等难题。

Secure communication scheme based on chaotic synchronization is an entirely new secure communication scheme. Pecora and Carroll propose secure communication scheme based on chaotic synchronization first in 1990. The scheme makes use of the good characteristic of chaotic signals, and has high security. Lots of papers improve on the scheme after it has been proposed.

基于混沌同步的保密通信方案是一种全新的保密通信方式。1990年，Pecora-Carroll首先提出了基于混沌同步的保密通信方案，方案利用了混沌信号所具有的优良特性，具有很高的安全性，之后又有很多文献对该方案进行了改进。

In this thesis, first, we present the acquisition theory of conventional spreadspectrum communication system and the theory of SESS system.

本文首先对扩频通信系统编码同步的理论、自编码直接序列扩频通信的原理、自编码扩频序列的产生方法及其统计特性进行概述，然后详细讨论了自编码扩频通信的编码同步捕获问题。

You can release soft equipment conforming to standard protocol along with equipment suppliers, and provide emulation of network integration solutions and synchronistical update to integrated network management.

系统采取拥有自主产权的中间平台，针对不同的网络类型可以动态接入符合该网络类型下的各种设备，根据设备是支持某种通信协议下的端口组合，可以根据协议的发展与通信设备厂家同步推出符合标准协议的软设备，提供组网集成方案的仿真实现和综合网管的同步更新。

The security of several typical chaotic synchronized secure communication schemes , as well as the respective unmasking methods are studied to find the way to improve the security. A new secure communication scheme based on active-passive decomposition using parameters perturbation technique, which makes it has a kind of dynamic secrete key, is analyzed in this paper.

摘要在分析几种典型的混沌同步保密通信方案及针对混沌同步保密通信的分析破译方法的基础上，研究了一个新的基于Lorenz方程的主动一被动同步保密通信方案，其特点是具有动态密钥，从而对上述攻击方法具有抗破译能力。

In order to understand the overall synchronization technology, this paper systematically expounded carrier synchronization, bit synchronization, cluster synchronization and the basic principles of network synchronization, and analysis and comparison of their methods of implementation, and finally give the performance of the synchronization technology and its impact on the communication system of indicators performance.

为了从整体上理解同步技术，本文系统阐述了载波同步、位同步、群同步和网同步的基本原理，并分析对比了各自的实现方法，最后给出各同步技术的性能指标及其对通信系统性能的影响。

Utilizing Chua's circuit, a drive-response chaotic synchronization system is constructed, by means of imitation, it can be concluded that this synchronization system possesses to a certainly stability、resisting-disturbance, and so on;Based on its system and by means of imitation, the characteristic of the chaotic synchronization self-maintenance is put forward, and imitation results are also presented.

介绍了Chua电路及其特性，给出了实现非线性电阻的一种电路；利用Chua电路构造出一种驱动-响应混沌同步系统，通过仿真得出此同步系统具有一定的鲁棒性、抗干扰等特性；根据此同步系统，仿真发现混沌同步具有自保持特性，并给出了仿真结果，这一在混沌领域的首次发现为混沌在保密通信的实际应用提供了依据。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。