traffic model 中文意思是什麼
traffic model
解釋
話務量計-
When studying the network performance, flow control and resource provisioning of communication networks, traffic model plays a very important role. the recent studies show that the date network traffic is self - similar, so the markovian model, which describes telephone networks accurately, is not suitable for date networks. the self - similarity of the network traffic has severe impact on flow control and queuing analysis in date networks, therefore it has received significant attention. in this paper, g m 1 queuing model is used to analyze the queuing performance of generic variable length packet networks for the first time. the self - similar traffic is generated by multiplexing a large set of independent pareto heavy - tailed interarrival on off sources. the simulation results show that the heavy - tailed traffic results in queuing performance deterioration for variable length packet networks, which is in accordance with the analytical results for atm switches
業務量的自相似特徵顯著影響網路的流量控制與排隊分析，已經引起人們的極大重視。採用g m 1排隊模型對分組長度可變的網路的排隊性能進行了分析和模擬，其中自相似業務量是通過疊加大量獨立的到達間隔為pareto重尾分佈的on off源來生成的。模擬結果表明，自相似業務量導致網路的排隊性能劣化，這與有關文獻對atm交換的分析結果一致。 -
In the last part of the thesis, the author makes use of an example to support his issue. by the change of land - use in wenling, the author consider carefully the factors of the traffic survey social economic data urban land - use data and road site layout, then predict the traffic model, which can provide beneficial reference for urban planning and traffic planning
該論文結尾通過實例對上述論點提供論據，通過對溫嶺市城市土地利用的變化、在掌握已有的交通調查及各項社會經濟指標、城市發展特點、用地指標、路網布局的基礎資料下，對溫嶺城市交通方式出行進行預測，從而為城市規劃與交通規劃的工作提供有益的參考。 -
Second, we introduce a two - lane traffic model which is based on the ( 0, 2 ) and ( 0, 1, 2 ) models. we mainly study the coupling effect of lanes. in two - lane traffic, vehicles can change lanes and overpass. the interactin between lanes is considered as coupling effect. the computer simulation indicate that ( dthe current of the system with cupling is greater than that without coupling ; 0for a certain initial density, the average flow and speed are indepent on the coupling coefficient which is greater than zero ; when the initial densities ( speeds ) of lanes are different, the characters of traffic system will be different
在單車道模型的基礎上，建立v _ （ max ） = 2雙車道模型，研究車道的耦合效應。雙車道模型中車輛可以進行轉道、超車，兩道之間有耦合作用。模擬結果說明，有耦合時系統的流量比沒有耦合時大；在固定的初密度條件下，只要耦合系數b 0 ，兩道間的耦合強弱對流量和速度無影響；兩道初密度分佈不均勻和速度分佈不均勻都能使交通系統特性發生變化。 -
Following are the key topics of the this article : a ) a traffic flow research on a typical jammed road of beijing. based on the research, the conclusion drew out a traffic flow map and the vehicle types description on every traffic flow direction of current traffic state ( normal distribution and poisson distribution ), which generates the traffic model. b ) the frame structure of urtss model
對北京市區某典型擁堵路段交通流進行調查，對調查結果的不同方面進行研究分析，對調查數據採用數理統計方法進行分析，確認北京這樣的大城市部分擁堵路段的交通流分佈情況（正態分佈） ；同時還對各流向的車型構成比例進行了描述，為所開發的城市道路交通模擬系統提供了基於城市道路實際交通流的交通生成模型。 -
Avoiding the use of mathematic models, the fuzzy logical control ( flc ) system meets the control demands of the tunnel ventilation process well which is a nonlinear distribution system. but because of its lacking of learning and adaptive ability, many problems has emerged when using flc : the membership functions of the fuzzy variables cannot be changed, the fuzzy logical rules cannot be modified automatically when environmental variables such as traffic model, average exhaust, etc, are changed. for this reason, the paper uses fuzzy neural network control ( fnnc ) system to improve the control process
模糊控制系統避開了數學模型，能很好適應公路隧道通風系統非線性和分散式參數特徵，但是模糊控制系統本身的學習和適應能力差，導致了模糊變量各語言值隸屬函數和控制規則不能隨著環境參數（如交通量、基準排放量等）的改變而自動調整和修改等問題，本文將具有強大學習能力的神經網路融合到模糊控制系統中，研究和探討了隧道通風模糊神經控制方法。 -
Practical self - similar traffic model of ethernet access networks and its realization
以太接入網自相似業務流量工程測試模型 -
The paper improves the velocity ' s control rules of a first - order microcosmic stochastic traffic cellular automaton model and incorporates it ' s stochasticity as a deceleration parameter in the construction of the fundamental diagram used by a macroscopic first - order continuum traffic model
摘要本文對微觀一維隨機元胞自動機交通流模型的速度控制規則進行了改進，並將其隨機特性轉化為減速參數合併到宏觀一階連續介質理論交通流模型中，重新構建了反映流量密度的交通流基本圖。 -
According to analyzing deeply factors impacting traffic flow of quay in modern container special terminal, this paper puts forward and develops a traffic model of container terminal quay
摘要在深入分析現代集裝箱專用碼頭前沿交通流的影響因素的基礎上，提出並建立了一個集裝箱碼頭前沿交通流模型。 -
With regard to the flow regulation of the best - effort traffic, the controllable traffic in high speed computer communication networks, the present paper proposes a novel control theoretic approach that designs a proportional - integrative ( pi ) controller based on multi - rate sampling for congestion controlling. based on the traffic model of a single node and on system stability criterion, it is shown that this pi controller can regulate the source rate on the basis of the knowledge of buffer occupancy of the destination node in such a manner that the congestion - controlled network is asymptotically stable without oscillation in terms of the buffer occupancy of the destionation node ; and the steady value of queue length is consistent with the specified threshold value
本文從控制理論的角度出發，針對計算機高速網際網路中最大服務交通流即能控交通流的調節問題提出了一種基於多速率采樣的具有比例積分（ pi ）控制器結構的擁塞控制理論和方法，在單個節點的交通流的模型基礎上，運用控制理論中的系統穩定性分析方法，討論如何利用信終端節點緩沖佔有量的比例加積分的反饋形式來調節信源節點的能控交通流的輸入速率，從而使被控網路節點的緩沖佔有量趨于穩定;同時使被控網路節點的穩定隊列長度逼近指定的門限值。 -
Upon this counting arithmetic, the system realize the function of checking vehicle ' s speed, length, width and so on. based on the optimizing arithmetic and traffic model in common use, the paper build a traffic model found on scatter time. then select genetic arithmetic to optimize model based on the model ' s characteristic
在此基礎上，實現了其他交通信息：車速、車長、車寬、行車間距和違章情況等的採集；在比較分析常用優化演算法和常用交通模型的基礎上，構建了基於離散時間模擬的交通模型，並根據模型的特點選擇遺傳演算法對交通網路進行優化。 -
The paper firstly combined the aerodynamic model, pollutant model, traffic model and the optimal operating fans selection model and then established the sample data gaining program to produce the optimal sample data ; secondly, the multi - layer forward neural network and the fuzzy control is combined within an equivalent structure, after the learning of sample data, the neural - fuzzy control system for the road tunnel longitudinal ventilation is produced ; thirdly, the optimal operating fans selection model is replaced by the fuzzy control model to make the tunnel ventilation simulation program, and then the control results under different traffic flow circumstances are evaluated in the matlab environment ; finally, the adaptive ability of the neural - fuzzy control system is discussed
本文首先結合空氣動力學模型、污染模型、交通模型和最優風機開啟臺數選擇模型建立樣本數據獲取程序，利用該程序產生不同交通流下的最優樣本數據；然後，將多層前向神經網路與模糊控制進行結構等價型融合，通過學習最優樣本數據，建立公路隧道縱向通風神經模糊控制系統；之後，用此模糊控制模型替代最優風機開啟臺數選擇模型建立基於模糊控制的隧道通風模擬程序，在matlab下模擬模擬不同交通流下的隧道通風以測評控制效果；最後，對神經模糊控制系統的適應性進行了討論。 -
Two way traffic model and self - tuning controller for freeway around ci ty
環城高速公路雙方向交通模型與自校正控制 -
Simulations results under rayleigh fading channel and on / off traffic model show that asama protocol can effectively support the application of smart antennas and provides high channel utilization and low delay. in chapter 5, we propose a qos ( quality - of - service ) - supported adaptive slot allocation multiple access ( qasama ) protocol
在考慮多波束智能天線，及話音與數據業務特點的基礎上，提出了提供qos保障的自適應時隙分配多址接入協議（ qasama 、 。 -
In the other way, traffic models play an important role in network traffic prediction and design. a good traffic model can help us to keep the status of the network and to control sudden evens in the net work. usually different kinds of the models have
目前有許多的研究者對網路流量建立不同的數學模型，針對不同的應用有著不同的功能，如對網路作短期預測的數學模型，以及時的控制網路的突發風暴，對網路作長期預測的數學模型，有利於網路的長期維護和長遠的發展。 -
The traffic model and a suit of differential equations presenting the status of the system are given first, from which an objective function is derived, and then the transmission is optimally controlled by the neural network which is characterized by nonlinear map and the particle swarm optimization algorithm which is characterized by stochastic optimization, namely the neural network is employed to generate variable rate of token generation, and the particle swarm optimization algorithm with inertia weight is employed to optimally train neural network in the form of finding a sub - optimal resolution in acceptable computation time
本文給出了傳輸控制的系統模型及其系統各狀態的差分方程表示，由此推導出了系統的代價函數。然後利用神經網路的非線性映射的功能和基於概率尋優的粒子群優化演算法對系統進行優化控制，利用神經網路控制令牌桶的可變令牌產生速率，利用帶慣性權重的粒子群優化演算法對神經網路的權值進行優化訓練，使其在可以接受的時間內達到次優解。 -
Much reference of the algorithms and models can be got from the performance results for the practical design and layout. system - level simulation of hsupa builds the integrated platform and key models to describe and simulate the common structure and features of the radio network, including cell layout, path gain, traffic model, power control, handover, etc., also the special ones of hsupa, including mac - es / e, node b controlled scheduling, harq, shorter tti, etc.
所謂hsupa系統級模擬就是要搭建系統級的模擬平臺，對無線網路的公共結構和特性（例如小區布局，傳播模型，衰落通道，天線模型，功率控制，切換， ue的分佈和移動，業務的建立終止和中斷等）和hsupa的專有結構和特性（ mac - es / e ， nodeb控制的調度， harq ，更短的tti ）進行描述和建模。 -
In the thesis, author analyses the present character of land use - traffic model development, appraise the technology character, consults the rule of how the land - use deal with traffic model, sets up the traffic generating model traffic distributing model and traffic way predicting model, puts forward traffic planning model
該文通過分析土地利用? ?交通方式發展的現狀特徵，對各種交通方式進行技術特性分析評價，從而探討土地利用對交通方式的作用規律，建立了以城市土地利用作為輸入的交通生成、交通分佈預測模型，交通方式預測模型，提出了與城市土地利用相互反饋的動態交通規劃模式。 -
We analyzed statistic characteristics of single mpeg vbr video stream and construct its traffic model, which can fit distribution function and auto - correlation function of video sequence very perfectly ; we also established aggregated mpeg vbr video stream model based on alpha - stable similarity process
該模型能夠同時擬合視頻序列的邊際分佈函數和自相關函數（一階和二階統計特性） ，這是傳統的網路流量模型不具備的。因此，該模型可以用於網路性能分析和視頻流流量模擬。 -
Study on a three - lane controlled cellular automata traffic model
三車道有管理元胞自動機交通流模型的研究 -
In this paper, after the research of the paging channel, no. 7 signal system, the traffic model and the calculation of the system configuration in the short message center, a transimission methed of the still digital image by the short message of the cdma mobile cellular telecommunications system is presented
本文在對cdma蜂房移動通信系統的尋呼通道、短消息中心、 no . 7信令及有關的話務模型和系統配置的計算等進行研究的基礎上，對利用cdma移動簡訊息的格式傳輸靜態數字圖像的可行性和具體實現方法作了比較深入和透徹的研究。
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