To keep from packet looping in network, a hop count field is used in the header of packet. 6. A PRN operating system is developed under the radio platform. First, we analyzed the source code of NOS, which is developed according to TCP/IP.
在无线实验平台的基础上，进行了对现有以TCP/IP为标准开发的网络操作系统NOS的源程序的分析和研究，实现了PRN协议层和IP协议层随接口的研究和实现。
And then a ship generator excitation compound control method with rough neural network inverse system feed forward compensation was presented, and the stability and reliability of compound system was analyzed.
利用粗糙集数据智能分析与决策规则自动提取的优点以及神经网络良好的泛化能力，提出了粗糙-神经网络逆模型的具体实现方法；在证明五阶同步发电机模型可逆的基础上，研究了船舶同步发电机的粗糙-神经网络逆模型，提出了基于粗糙-神经网络逆模型前馈补偿的船舶发电机励磁复合控制方法，并对复合控制的稳定性和可靠性进行了分析。
From the point of view of function approximation, a new nonlinear time series prediction model based on wavelet network and its learning algorithm by conjugate gradient method are developed. This model is applied to predict faults of propulsion system for spacecraft.
研究了小波网络模型，从函数逼近角度出发，提出基于小波网络模型的非线性时间序列预报模型，给出了基于共轭梯度的学习算法，并把该模型用于空间推进系统的早期故障预报。
At first This paper formulates the necessity for depurating network information content, and introduces the history of information security and study point in information security. Also this paper analyses in detail the key technology of content filtering such as data frame capture, bridge, network protocol analysis and content analysis. And then this paper comes up with the solution for content filtering facing application layer which is based on the technology of protocol analysis and format conversion in combination with text filtering techonology of Multiple Patterns Matching..Also this paper amplifies on the design and the implement method of each module. Finally this paper introduces how the client of content filtering system manages the keywords and log and makes suggestion for the improvement of the system.
本文首先阐述了对网络信息内容净化的必要性，介绍了信息安全的发展过程以及当前信息安全方面的研究重点，详细分析了内容过滤的关键技术，如数据帧捕获、网桥、网络协议分析和内容分析等方面的技术，然后提出了在Windows2000下实现基于协议分析技术，结合多模式匹配的文本过滤技术，面向应用层的内容过滤解决方案，并给出了内容过滤引擎的详细设计以及各个模块的实现方法，最后介绍了内容过滤系统客户端对有害信息关键词和日志的管理以及对本系统改进的一些建议。
The company has first-class management system and marketing network, the company adhere to the purpose of customer service.
公司拥有一流的管理体系和营销网络，公司坚持以客户至上为服务宗旨。
In this thesis, we aimed at the application of PID and neural network technology in the montion control and try to design a better system for Underwater Vehicles.
本文旨在探讨PID和神经网络在水下机器人运动控制中的应用，并设计出优良的水下机器人运动控制系统。
According to the practice of the network TV in CWIS, this essay introduces the basic principles of the network TV live broadcast system as well as the method and configuration of the network TV live broadcast system based on the Microsoft Windows Media.
结合网络电视在校园网内的应用实践，介绍网上电视直播系统的基本原理及基于Microsoft Windows Media建立网络电视直播系统的方法与配置。
The LZCU CWIS system resolves problems of traditional network teaching system such as methods of courseware-creating, individualization of long-distance teaching and insufficient preservation and accumulation of teaching resources, and so on.
LZCU CWIS系统解决了传统网络教学系统中课件制作难、课件格式不统一、个性化不足的网络教学以及教学资源的保存与积累等问题。
At last, on the basis of the practical example of LIANYUAN S control network and data network integration technology, this paper brings up a new monitoring and control system construction frame that based embedded TCP/IP protocol, taking use of the technology of embedded network. Also in this paper, designs and implements it with the use of related technologies of hardware and software, and discusses and implements the three main questions: the design of the front equipment of collecting; the managing and scheduling technology of the multi communication threads in communicating module of monitoring and control system; the data processing.
本文最后以链源钢铁厂一个实际的监控网络和数据网络一体化的项目要求为例，提出了在该系统中引入嵌入式网络技术，并由此设计了一种基于Internet／Intranet的嵌入式的企业监控网络和数据网络的体系结构框架，利用有关的硬件与软件技术，进行了设计与开发实现，并对基于Internet／Intranet嵌入式监控系统的三个核心问题：基于嵌入式TCP／IP协议的采集前端设备的系统设计，通讯模块中多通讯线程的管理与调度以及数据的处理进行了探讨与实现。
Firstly, we will summerize all the work listed as below: 1. I have studied about the basic procedure, implementation method, main applycation of system simulation technology, discrete event simulation, and network simulation. And I focus on the basic method and exsting problems of network simulation and exsting network simulation software.
研究了系统仿真技术、离散系统仿真、网络仿真技术的基本过程、实现方法、具体应用，并着重对网络仿真的基本方法、存在问题及现有的网络仿真软件进行比较详细地研究，指出现有网络仿真软件不能适应网络系统设计的需要，确立了本课题的研究依据。
And the technology that he says is system of network video call.
而他所说的技术就是网络视频呼叫系统。
In time-driven mode control system, this method can be adopted to simulate the network time-delay.
在基于时间驱动工作方式的控制系统中，可以采用这样的方法进行网络时延仿真。
At first, the thesis introduces the framework and actuality in power distribution automation, and the function of Ring Main Unit for distribution network system.
论文首先介绍了配电自动化的体系结构和发展现状，阐明了环网开关柜在配电网中的作用。
A novel fault judgment matrix, with the information from each Ring Main Unit, can judge the fault area on distribution network quickly, so the system can isolate the fault area and restructure the distribution network; switchgear cubicle status diagnosis adopt a condition-based diagnosis expert system, which knowledge representation combines the advantage of fault tree, frame and rule representation.
通过对新型故障判断矩阵的分析和应用，配合环网终端设备的互联通信，实现配电网的快速故障定位、隔离和配电网重构；开关柜柜体状态诊断采用基于故障树、框架表示法和产生式规则相结合的知识表示形式的专家系统来实现；同时，对电力设备智能化的若干新技术和高压侧在线测量的难题进行了探讨和实践，通过采取有效的抗干扰和隔离措施，解决了新型电流电压组合型传感器微弱输出信号的传输问题和真空灭弧室真空度、高压母线／电缆连接点温度在线检测装置的安全运行问题，并提出了相应的实现方案。
The emphases of the project is to develop the software of the automatic testsystem in network, and the system is composed of the subsystem of the controllingof the signal testing and the subsystem of the controlling of selftest and surveilling, and the system and other subsystems of the workgroup form a shooting range ofelectronical warfare.
该课题的重点是进行网络化自动测试系统软件开发，雷达信号监测系统是由信号检测控制子系统和自检监视控制子系统组成，同时它们与其他子系统共同组成一个电子战测试场软件系统。
Special structures for coherent FBG group and fiber MZI sensors are designed. For weak signals or strongly interferenced signals, winding method, flat layout method, special coated fiber method or spring separation method, solid separation method are proposed, and the recognition ability for object signals is improved. The physical features of the object signals are extracted from various aspects by the parameters analysis such as maximum amplitude, RMS, ringing count, pulse count, event count and duration, by the waveform transform analysis such as Fourier analysis, AR spectrum analysis and joint-time-frequency analysis, and by statistic analysis of the parameters analysis results or waveform transform analysis results. And the features of different object signals are extracted when the optical fiber sensing systems are applied for railway location, axel counter, fence destruction monitoring and pipe destruction monitoring. Auto-recognition of the railway location signals with coherent FBG sensing system is realized by a linear discrimination function based on Fisher criterion. And auto-recognition of the fence destruction signals with a MZI sensing system demodulated by a 3×3 coupler is realized by a LMBP neural network.
对相干FBG组及光纤MZI传感器的具体结构进行了设计，分别针对微弱振动信号及强干扰信号，采用缠绕法、平面法、特殊材料涂覆光纤及弹簧隔离法、整体隔离法等设计光纤传感器，提高了对目标信号的识别能力；通过提取信号最大幅度、有效电平、振铃计数、脉冲计数、事件计数、持续时间等参数，对信号进行傅立叶谱分析、AR谱分析、时频分析，并对不同参数及频谱分析结果再进行分布统计分析，实现了多角度的信号物理特征提取，应用于列车区间定位、列车计轴、围栏破坏性行为监测、管道破坏性行为监测等场合，实现了各种不同目标信号的特征提取；采用基于Fisher准则的线性判别函数，实现了基于相干FBG组传感系统的列车区间空闲或占用的自动识别；采用LMBP人工神经网络，实现了基于3×3耦合器解调的MZI传感系统的围栏破坏性行为的自动识别。
What cobweb still introduced network bank is online pay a system to trade in order to ensure safe.
蜘蛛网还引进了网络银行的在线支付系统以确保交易安全。
The necessity and the possibility of construction of Chang-Zhu-Tan netty information transmitting by using broadcast and TV network is discussed, the connecting method and the network structure by means of the over SDH tecnnical system is designed and the scheme for connceting communication computer and cable TV subnets under this system is also proposed.
论述了利用广播电视网络架构长株潭三市信息平台的必要性和可行性，并采用over SDH技术体制设计了联网方式和网络结构，提出了在新体制下通信、计算机和有线电视三网融合的具体方案。
We also have advanced technology and developed color-management system. We own strong sales network and perfect service.
有完善的生产工艺，先进的调色管理系统，拥有强大的销售网络和完善的售后服务体系。
In comprehensive wiring, to cable TV circuit, telephone system, interphone system and network circuit competent to design, this text has clear explanation to lay the method to various pipeline in the building.
在防雷安全方面，进行了避雷带、引下线及接地极的设计；最后，进行了工程概预算。