有向通信網 的英文怎麼說
中文拼音 [yǒuxiàngtōngxìnwǎng]
有向通信網
英文
oriented communication network-
The company began to deal with wireless communication in 2002, and has the ability of researching the power - supply of catv and colligate gateway
02年開始從ups代理轉向無線通信，並擁有自有品牌「時訊」及catv電源綜合網關的研發能力，客戶包括中國移動，中國聯通，太平洋保險公司。In all kinds of complicated network, oriented linking and unlinking, communication frequency resource is strained, and bandwith to transmitting audio frequency signal is too restricted, complicated and fluky, while audio frequency data exponential have been increased in the last several years. under the circumstances, based on the research of predecessor, this paper studies wavelet analysis ' s maths gist and practices significance on signal process, and puts forward a optimized wavelet package condensation arithmetic to process audio frequency data, which gives attention to coding efficiency, multirate and compression delay. simulation experiment on the arithmetic has been done by matlab
針對無連接和面向連接的各種復雜網路環境下，通信頻帶資源緊張，音頻傳輸帶寬有限且復雜多變，而各種音頻數據又日益增多的局面，本文研究小波分析在信號處理方面的數學依據和在數據壓縮方面的實際意義，在前人不斷工作的基礎上，提出了一種優化小波包變換編碼方案用於音頻數據的壓縮演算法，兼考慮了編碼效率、多碼率和壓縮時延多個方面，並在matlab環境下做了模擬實驗，對各種音頻信號及多種小波函數做了模擬結果比較，實驗結果證明該演算法可以在一定計算復雜度下可以很好地改進壓縮效果，達到多碼率下實現實時編解碼的過程，在高速dsp晶元等硬體設備支持下，可以有效應用於實際復雜多變信源編碼。Aiming at the practical situations of frequent accidents on mine gas and existing mine gas wire communication system needs to be improved towards wireless communication system, the paper put forward all nodes of gas sensor distributed in underground were brought into an intelligent and flexible wireless network system, so as to form a gas sensor networks system with layering and characteristic of intrinsical safety which relayed on the sensor ' s node
摘要針對礦井瓦斯事故頻發、現有礦井瓦斯監測有線通信系統急需向無線通信系統改進的實際情況，文章提出了將分佈於井下的所有瓦斯傳感器節點納入一個智能化、結構靈活的無線網路系統，組成以傳感器節點為依託的層次化且具有本安特性的瓦斯傳感器網路系統。Frequency - hopping ( fh ) is a novel spread spectrum communication technique, which develops very fast in military field due to its lpi / lpd ( low probability of intercept / detection ) properties and immunity against interferences, the extensive application of hf ( high frequency ) frequency - hopping radios in military has greatly enhanced the ability of military equipments against jamming and interception and brought up a new austere challenge for communication countermeasures
跳頻通信具有良好的抗干擾性，低截獲概率及組網能力，因此跳頻技術的一出現，便在軍事領域得到了極大的發展，採用跳頻技術的短波電臺在軍事通信中得到了廣泛應用，極大地提高了軍事裝備的抗截獲和抗干擾能力，向通信對抗提出了嚴峻的挑戰。In design flow modeling, a new design flow model definition method based on object oriented colorful petri net is put forward. in sub _ task dispatching, the task database, the task dispatch algorithm, the task dispatching time and its amending algorithm, the task dispatching execution plan etc. are designed. in version management, the version model of design object is built and the relationship between the linkers in dfms model and the version model about design objects is studied
在相關的關鍵技術研究中，提出了一套包括通信模型的建立、通信原語的設計、通信服務器的設計等內容在內的被動式協同設計通信方案；設計了一種基於面向對象有色petri網技術的設計流程模型定義方法；提出了一種基於調度時間和資源狀況的子任務調度方案，並完成了任務數據庫的設計、子任務調度演算法的設計、子任務調度時間及其修正演算法的設計和子任務調度實施方案的設計等工作；建立了設計對象的版本模型，研究了設計流程模型的各種連接器與設計對象各種版本間的對應關系。As for the operators, java is helpful when deciding technical and commercial modes, which in turn leads the services development and content of the value - added services providers, making various services content and commercial modes possible. besides, the cross - network provisioning of services content is made possible because java services is independent to the communications network protocol
對于運營商來說，則有利於選擇技術、商業模式，從而可以引導增值服務商的服務方向和內容，使廣泛、多種多樣的服務內容和商業模式成為可能，另外，因為java服務獨立於通信網路協議，使服務內容的跨網提供也成為可能。The unites which is designed according to the transformer substation and distribution automation have protection, measurement, controlling and communication function communicated with ftu and realize measurement, protection and feeder automation integrated functions. the equipment can communicate with scada and finish measurement and controlling function
本系統的配電終端是按同時面向變電站（開閉所）間隔與配網自動化饋線設計的一體化現場終端，具有保護、測量與控制以及對饋電線路ftu的通信管理功能，實現了測控、保護、饋線自動化三合一的思想。The article consists of three parts mainly : the first part has described the method of detecting the faint signal, mainly include : detection technique of faint signal, principle of the optical fibre sensor, the little lose effects when optic fibre little curved, and the research of the stress sensor of optical fibre. the second part emphasizes on the design of the intelligent photoelectricity system, mainly tells the design of the circuit to process the faint photoelectricity signal, details the software and hardware design of intelligent photoelectricity system made of single chip microcontroller, led, man - machine interface, communication interface, etc. the third part is the network communication of the detection system, details the technology of single chip microcontroller how to group the network, and the communication between single the chip microcontroller system and the modem, and how to realize the data between the field and computer central exchanged through the existing public phone network
文章主要分為三部分：第一部分論述了微小信號的檢測方法，主要包括微小信號的檢測技術、光纖傳感器的原理、光纖微彎損耗效應及光纖應力傳感器的研製；第二部分重點講述了智能光電檢測系統的研製，主要講述了微弱光電信號調理電路的設計及由前（后）向通道、單片機、 led 、人機介面、通信介面等組成的智能光電系統的軟硬體的具體設計；第三部分為檢測系統的網路通信部分，具體闡述了單片機系統間的組網技術、單片機和modem之間的通信及通過現有的公用電話網路實現遠程監控的技術，實現現場檢測系統與橋梁測控中心的數據交換。With the development of the fiber communication, very high speed fiber optic backbone has being closed to the customer, but few customers has connected to fiber backbone directly. on the other hand, many customers are running some high speed network within their lan, such as fast ethernet ( 100mbps ), or gigabit ethernet ( 1. 0gbps )
隨著光纖通信技術的發展， 2 . 5g - 10gbps的光纖干線正在不斷的向用戶延伸，但由於成本和光纖敷設工程上的難道，只有很少的用戶直接和光纖干線相連，通常光纖只延伸到了路邊、小區；另一方面，許多用戶內部的局域網也具有很高的傳輸速率，一般為100mbps甚至1gbps的以太網。This thesis presents a new solution called the smart platform, which better tackles the problems by : 1 ) a runtime environment discovery mechanism which allows a new device to automatically find and join the runtime environment ; 2 ) the loose coupled publish - subscribe inter - module coordination model, which caters for the spontaneous interaction between modules ; 3 ) a global - local two - layer runtime environment structure. the transient failure of the wireless network can be recovered at the local environment layer. the asynchronous nature of the interactions in the < wp = 8 > publish - subscribe model also prevents modules from blocking on the transient network failure ; 4 ) distinguishing two classes of communications with different qos requirements, the message - oriented and the stream - oriented
本文提出並實現了smartplatform ，其特點是： 1 ）運行環境發現機制，使外來計算設備可以自動加入軟體平臺的運行環境； 2 ）松耦合的發布/訂閱式模塊間協調機制，模塊間關聯可以自發組織； 3 ）局部全局的兩層運行環境組織策略，無線網頻發的暫時故障可以在計算設備的局部運行環境層次被屏蔽掉；同時發布/訂閱模型的異步性也使得模塊不會因網路故障而阻塞； 4 ）區分智能空間中的兩類不同的通信需求面向消息的和面向流的，並分別為它們提供了優化的通信層支持； 5 ）基於多agent抽象模型，為整合不同應用領域的模塊和遺留代碼提供了有力工具。Although leases can be configured to extend the lifetime of a remote object longer than is precisely required, the reduction in network traffic devoted to reference counting and sending requests to clients, makes leasing an attractive solution when properly configured for a particular scenario
雖然可以將租約配置為延長遠程對象的生存期以超過所需的精確長度，但是由於減少了專用於引用計數和向客戶端發送請求操作的網路通信量，因而使租約在為特定方案正確配置時成為一種很有吸引力的解決方案。In this paper, through the research of the mental model of agent and the analyses of a few kinds of " belief - desire - intention " ( bdi ) model of agent from the logical view, we explain the agent theoretically. on the base of analyzing the organ structure of agent, we put forward the kernel agent concept. the kernel concept abstracted from common properties of agent, contribute to construct agent and multi - agent system. we have also studied the kqml ( knowledge query and manipulation language ) and communication mechanism of agent, and bring forth the ontology researching will become the emphasis in construction of abstract knowledge exchanging between the agents. at last, we construct a multi - agent system, which exchange kqml message by a mobile agent, by the development tools of agelt and jkqml
當前，對agent和多agent系統的研究正在掀起熱潮，是當今計算機科學技術領域、信息工程領域和網路與通信領域十分活躍的前沿研究方向之一。本文通過對agent心智模型的研究，從邏輯學的角度分析並總結了幾種agent 「信念?願望?意圖」 （ bdi ）模型，在理論上對agent進行了解釋。總結了現有邏輯模型存在的問題，提出去掉規則n形成的一種非正規模態邏輯的語義上的新的解釋，解決了「邏輯全知」問題和由此帶來的問題，避免了一般非正規模態邏輯系統語義解釋對agent的bdi描述的弱點。In the 3rd chapter, according to the requirement of the representation of the product information, a new data model - xoem ( extensive object exchange model ) is presented because of the lack of the data model, which faces to the xml. the formal description of the xoem and its corresponding algebra are put forward, and then the data model is applied to the xml document on the web. in the 4th chapter, the method of the uniform information representation is presented according to the requirement of the description and identification of the diversified heterogeneous product information
在第三章中，結合產品信息網上表達的需求，針對www環境下缺乏面向產品信息xml描述的web數據模型的情況，提出了基於帶根連通有向圖的一種新的數據模型即可擴展對象交換模型xoem （ extensiveobjectexchangemodel ） ，給出了該模型嚴格的形式化描述，並將該模型應用到含有xml半結構化數據的web中。The directional routing protocol ds _ dsr put forward by the author is the improvement of the current protocol dsr, complete routine discovery and maintenance by directional neighbor nodes routing table, source routing and directional steering. the research discovers the application of the directional antenna, compare the omnidirectional antenna can increases the networks " total throughput, obviously reduces the co _ channel interference ( cci ), multiple access interference ( mai ), enlarges the nodes " signal and interference to noise ratio ( sinr ), and because of the high gain of directional antenna can realize the communication with farther distance and less jump, end to end delay can decrease deeply, simultaneously, security of networks can be improved partially, the node energy also can be saved easily by power control
本文提出的定向路由協議ds _ dsr是基於對現有協議dsr的改進下實現的，通過定向鄰節點路由表、定向源路由和定向搜索來完成路由發現與維護。研究發現，定向天線的應用，相比全向天線可明顯提高網路的總的吞吐量，減少通道干擾、多址干擾，提高信干噪比，且由於定向天線的高增益可實現較遠距離、較少跳數的通信，減少了路由發現時間，這樣大大減小了傳輸時延，網路的整體性能得到了不同程度的提高，同時部分地解決安全問題，通過功率控制還可較容易的實現節能的目的。For modern communication chamber, it ' s very important for management to get the condition of these chambers and prevent fire. now supervising modern communication rooms " condition is developed towards multi - way integration, combination of supervising - diagnostic - maintenance determination and network, and then condition supervision has typical character of information fusion. the quality of information could be improved by making full use of multi - datasourse inter complementarily and redundance. the problem such as much quantity, extensive distribution, supervisement, diagnostic and management and so on could be settled through network, at the same time the remoted condition supervising system based on multi - sensor multi - layer information fusion could be realized conveniently
當前現代機房的狀態監測正朝著多種方法集成、監測?診斷?維護決策相結合以及網路化的方向發展，使得狀態監測具有典型的信息融合特徵，充分利用多源數據的互補性及冗餘性來提高結果信息的質量；通過網路解決系統測點數量多、分佈廣、監測、診斷、操作和管理困難等問題，使基於多傳感器、多層次信息融合的遠程狀態監測系統得以方便地實現。In the background of cdma telecommunication network management system from zte corporation project - omc ( operation maintenance center ), the paper focuses on design patterns and object - oriented design principles applied in the development of tmn
在通信技術與計算機技術相互滲透的背景下，結合中興通訊股份有限公司cdma通信網路管理系統? ?操作維護中心omc （ operationmaintenancecenter ）項目，深入探討了tmn網管系統中軟體設計模式及面向對象設計思想的應用。Along with the development of communication, the maturation of telecom market and requirement of new services, telecom service will be opening in the future. ngn is a fire - new system facing telecom network. it is an import - tant characteristic for ngn better than network theses days that providing all kinds of add - value services. osa is a new system and includes the bottom network, the top application servers, the opening interface between them
Ngn是全新的面向下一代電信網路的體系結構。在電信網路上提供豐富多彩的增值業務是ngn優于現有網路的重要特點。 osa是一種新穎的業務體系結構，主要包括底層通信網路，高層的應用服務器，以及他們之間的開放介面。The structure of distributed multimedia management combining with centralized switch control incarnates the coalescent of computer network technology and communications network technology. and it supplies the feasible resolution to the development of grouping based on ip
其分散式媒體處理和集中式交換控制相結合的體系結構充分體現了計算機網路技術和通信網技術的有機結合，為電信網向以ip為核心的分組化方向演進提供了可行的解決方案。The multi - dimension scalability is composed of scale - scalability, performance - scalability, security - scalability, function - scalability, and service - scalability. we suggest five elements, namely, ipv6, authentic ipv6 addressing, scalable processing capacity of routers, end - to - end connectionless quality - of - service control, and 4over6 mechanism to realize the multi - dimension scalability. the current research results show that the multi - dimension scalable architecture composed of these five elements will bring great influence on next - generation internet
可以預想到諸多的科研成果如高速光纖通信高速無線通信網格計算生物計算等必將在十年內給網路技術帶來質的飛躍，引領著網際網路朝著下一代更大更快更有響應更方便更安全更可管理更有效的方向努力。Future wireless communication systems trend to provide multi - services to mobile users. cdma technique is adopted by the 3rd generation mobile communication systems due to its flexibility in supporting multi - services. how to keep qos of heterogeneous services and utilize the scarce radio spectrum resources is challenging for 3rd generation mobile communication systems in this thesis we developed a radio resource allocation framework for wireless code division access ( cdma ) networks that support multi - class traffic with different data rates and bit error rate requirements. we proposed a new resource allocation scheme using joint adaptive power control and mmse multiuser receiver in multipath fading system
為移動用戶提供多種業務服務是未來無線通信網路的主要發展方向。由於cdma技術具有靈活支持多種業務的優點，因而被第三代移動通信系統所采納。如何在惡劣的無線傳播環境里以及用戶運動且相互干擾的情況下為為各類業務提供qos保證，同時充分利用珍貴的無線頻譜資源，是基於cdma技術的第三代蜂窩通信系統必須致力解決的問題。分享友人