模擬線通道 的英文怎麼說
中文拼音 [mónǐxiàntōngdào]
模擬線通道
英文
artificial line duct- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 擬 : 動詞1. (設計; 起草) draw up; draft 2. (打算; 想要) intend; plan 3. (模仿) imitate
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 通 : 通量詞(用於動作)
- 道 : Ⅰ名詞(道路) road; way; route; path 2 (水流通過的途徑) channel; course 3 (方向; 方法; 道理) ...
- 模擬 : imitate; simulate; analog; analogy; imitation; simulation模擬艙 boilerplate; 模擬電路 [電學] circ...
- 通道 : thoroughfare; passageway; pass; enterclose; gallery; drong; tunnel; avenue; alure; way; row; key ...
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Abstract : radiate thermometer uses a high definitive operation circuit in the modulation and linerization of weak optical signals. the theory of colorimetry was used in measuring the temperature. analogic channel and digital interfaces were added in order to expand the instrument. a kind of double channel ' s photocolorimeter including its hardware and software is introduced
文摘:輻射測溫計採用高精度運算電路,對光弱信號進行調制和線性化處理,運用比色法原理對溫度進行檢測.為了便於儀器擴展,增加了模擬量輸出和數字介面,並對光纖式雙通道比色高溫儀的硬體與軟體的關鍵部分作了簡要介紹Abstract : propagation characteristics of r wave in a pavement structures are analysed in this paper. based on the propagation characteristics of r wave, the horizontal propagation wave is simulated by using r wave, the vertical propagation wave is also simulated by using body wave in calculating dynamic response of pavement structures. the availability and accuracy of dispersion curves measured by sasw in pavement structures is analysed by using the presented method used to calculate dynamic response
文摘:利用有限單元法分析了道路結構的r面波傳播特性:在深度方向上衰減較慢,傳播較深,波動性大.提出了在道路結構動力響應計算中,利用面波來模擬水平向傳播波,利用體波來模擬豎直向傳播波.通過算例來驗證該方法的可靠性和精確性,並利用這一動力響應計算方法分析了道路結構表面波測試中所獲彌散曲線的可靠性In this paper, the signal processing of sum and difference patterns of amplitude dual - plane monopulse radar and the effect of amplitude - plane non - consistency are analyzed from the coordinates relationship of four - horn antenna at length, and its corresponding simulation is verified, which bring convenience to engineering implementation
文中從四喇叭天線的位置坐標關系,詳細分析了雙平面振幅和差式單脈沖雷達信號處理過程以及三通道幅相不一致性的影響,並且進行了相應的模擬,為工程實現帶來了很大的便利。Traffic accident simulation and control technology are simulating the environment and driving process, simulating the operation situation of accident vehicle on the road, making kinematic analysis based on data such as vehicle collision, stop location and collision narks, to determine the normally running line and the speed of vehicle before the accident, presume the collision speed course reversely, use 3d graphics technology to reappearance accidents process, provide scientific theory for the analysis of the cause, make corresponding protect safety technology and strategy
交通事故模擬與控制技術是對駕駛環境與駕駛行為進行模擬,模擬車輛在道路上發生事故的運行情況,根據車輛碰撞位置和停止位置、車身碰痕等事故現場數據進行運動學分析,確定車輛在事故前正常行駛時的速度和路線,逆向推定碰撞車速及事故過程,應用三維圖形技術再現交通事故過程,為分析事故成因,提出相應的交通安全保障技術和策略奠定科學理論依據。The main content and contribution in this dissertation are as follows : 1. the rrs wireless channel characteristic and the two - path model are described and a simulation model of the pcm / fm rss system is introduced
本文的主要工作和貢獻之處: 1 .分析了再入遙測無線通道特性及雙徑模型,建立了pcm / fm再入遙測系統模擬模型。In the meanwhile, we build a complete simulation model of layered wireless self - organizing routing network and verify feasibility of network architecture and key technologies, including operating mode of wireless interface, addressing and routing in lwsrn we study the performance of wsrn in terms of routing overhead, packet delivery ratio, and the communication capability, and compare these result with that of ad hoc network
同時,構造了完整的分層結構的無線自組織路由網路模擬模型。驗證了網路體系結構和關鍵技術的可行性,包括無線通道工作方式、網路編址技術、網路路由過程。並通過模擬分析了分層結構的無線自組織路由網路的路由負載、網路數據到達率和網路通信容量。The practical experiments of the designed intelligent two - wire valve present a good preferment. we model the power - line channel in chapter 4 as the experimental result shows that the power - line channel condition has civilizing influence upon the valve ' s communication performance. here, we establish power - line resistance model base on theory of transmission line
在實驗中我們發現電力線通道特性的變化對智能二線閥系統的性能有著比較明顯的影響,從研究的系統性出發,同時,也是作為從物理實踐到理論研究的一個重要步驟,我們在第四章中對電力線通道建模和電力線載波通訊進行了模擬研究。The structure of the antenna array is given. also, the feasibility of this structure is proved through computer simulation and channel transfer characteristic measurement
給出了相應的天線陣列結構,通過計算機模擬與通道傳輸特性測試驗證了使用極化天線陣列的可行性。This dissertation discuss the nature of the impulsive interferences on the power line channels, and presents a model for finding a frame length and a simulated example using probability
本文論述了電力線通道上脈沖干擾的特性,運用概率論推導出存在脈沖干擾時求解數據幀長度的數學模型,並進行了模擬模擬驗證。This paper designs a measurement system and measures the main properties of power line practically. the characteristics of power line are analyzed in detail, and a power line channel model is presented which consists of the parametric transfer function model and the simulating model of background noise, narrow noise and impulse noise. simultaneously the simulating method on the computer is presented
本文設計了一個測量系統對實際電力線通道的主要特性進行了測量,詳細分析了電力線的信號傳輸特性和噪聲特性,給出了一個實用的室內電力線通道模型,包括參數化的傳輸函數模型以及背景噪聲、窄帶噪聲和脈沖噪聲的近似模型,並給出了計算機模擬實現方法。In this paper, we discuss the principle of mimo - ofdm system based on the introduction of fading channels. furthermore, the channel estimation technique in mimo - ofdm system is investigated, with the emphasis on training sequence - based and pilot - based channel estimation methods, and also several basic and improved algorithms are given respectively. finally, the analysis and comparison of these algorithms is made by computer simulation
本文在分析移動無線通道衰落特性的基礎上,闡述了mimo - ofdm系統的基本原理,並圍繞該系統中通道估計這一關鍵技術,深入研究了基於訓練序列和基於導頻符號的兩類通道估計方法,給出幾種相應的通道估計演算法以及它們的改進演算法,最後結合matlab模擬對這些演算法的有效性和可行性進行了全面地分析與比較。The simulation results based on siso and mimo systems show that the proposed scheme could effectively eliminate the time - variant fading characteristics of wireless channel and under an acceptable demand of ber, the frequency efficiency is enhanced greatly and besides, dynamic encoding is implemented with low complexity and high efficiency
通過在單天線和多天線系統中的模擬,表明該方案可以有效的克服無線通道的時變衰落特性,在滿足誤碼率性能要求的基礎上可以提高系統頻譜利用率,且實現復雜度低。With rapid development of wireless communications, muitipath radio channel simulation has become an indispensable means of evaluating radio links. transmission of information over muitipath fading radio channel, such as the land - mobile hf or vhp channel has received much attention during the last three decades
本文以通信對抗內場半實物模擬試驗系統的工程任務和地面移動通信的設計模擬科研任務為背景,分析了vhf 、 uhf地面無線通信的通道特點,無線通道的主要參數及對通信性能的影響。In this thesis, can bus is used as the system bus, concentrating the research on the feasibility of using redundancy can bus technology in large - scale motor vehicle safety performance detecting & control system. this thesis first gives an overall design of the data collection and control system applied to the front end of a large - scale motor vehicle safety performance detecting & control system. regarding that the bus controller, bus driver and bus transfer medium would fail to function easily, the dual mode cold - redundancy structure is adopted in system to ensure the reliability
本文採用can總線作為系統總線,重點研究冗餘can總線技術應用於大型機動車安全性能測控系統的可行性並進行驗證:首先對基於冗餘can總線的機動車安全性能測控系統的前端數據採集與控制系統進行了總體設計,考慮到總線控制器、總線驅動器和總線介質都是容易出故障的部件,系統採用了二模冷冗餘結構來保障can總線通訊的可靠進行;其次,根據系統需要,設計了基於c8051f021的帶冗餘can總線通道的數據採集與控制模塊,用於採集與處理檢測現場的模擬信號和數字信號,並自行開發了can總線應用層協議以及應用軟體,通過冗餘can總線實現與上位機的可靠通訊;然後,為了驗證冗餘can總線設計方案的可行性,搭建試驗平臺並進行can總線故障切換的試驗;最後對課題的研究工作進行了總結與展望。After summarize the characteristic and suitable environment of t1p1 wireless channel model, a kind of systematic emulation model of localization is put forward based on t1p1 channel model
本文總結了t1p1無線通道模型的特點及其適用環境,提出了一種基於t1p1通道模型的定位系統模擬模型。The paper provides a visual modeling scheme using object - oriented technology, and does experiments for current impulse response models from model change to parameter design to graphical modeling. the frame is a visual solve for simulation analysis and transmission forecast of radio channels. on the one hand, the paper takes classic radio channels as independent objects and builds their graphical models, comes into being a visual universal model library
本文深入研究了無線通信通道、尤其是多徑通道的傳輸特性,提出一種基於面向對象的可視化無線通道建模和模擬方案,對具有普適性的通道沖激響應模型進行了從模型轉換、參數設計到圖形建模等環節的實驗,建立起統一的、一體化的通道建模模擬實驗框架,為無線移動通道的分析、建模、模擬和傳播預測提供了一種可視化的解決方案。Chapter 3 studied the results that come from the combination of the multi - carrier transmission technology and the adaptive multilevel modulation technology in detail, and bringed up to apply the technology to wireless channel transmission. the feasibility and advantage been testified by computer simulink
第三章詳細討論了多載波傳輸和自適應多元調制相結合的效果,提出將這種技術應用於無線通道傳輸的想法並模擬證明其可行性和優越性。On the base of the visual channel model library and estimation algorithm library, the paper advances a integrative design scheme of radio channel simulation environment, which has some technical innovation and practical value
本文在構建可視化通道模擬模型庫和通道估計演算法模型庫的基礎上,提出了一種集成化的無線通道模擬環境設計方案。This thesis studies in adaptive equalization problems, and put the emphases in various adaptive equalizers, channel model, etc. finally, the performance of the presented blind equalizer which are used in digital microwave radio channel are compared and evaluated. the results are of great important in the development of more spectral efficient digital microwave radio - links. the focus is set on low - complexity adaptive equalizers for implementation in digital microwave radio systems
本文圍繞著自適應均衡技術進行了深入的探討,重點研究了自適應均衡演算法、通道模型等問題,並針對幾種盲均衡演算法應用於數字微波無線通道的均衡性能進行了模擬和比較,其結果對于開發具有更高頻譜利用率的數字微波通信鏈路有著重要的指導意義。The establishment of efficient traffic models to reveal fundamental traffic characteristics is an essential requirement in the design, planning and operation of transportation systems. cellular automata ( ca ) are non - liner dynamical system in which space, time and state values are discrete, using simply rules, ca has attained very good results in simulating several complex natural phenomena and physical problem. that enlightens people to simulate traffic flow by ca method. urban major road performs critically on dredging traffic, therefore, it is very necessary to study the control and manage for urban main - road
交通系統的規劃、設計和運作要求有能反映交通現象基本特徵的交通模型。元胞自動機是空間、時間和狀態都離散的非線性的動力學系統,它用簡單的規則在計算機上模擬各種復雜的自然現象和物理現象,並取得了很好的結果,啟發人們用它來模擬交通問題。城市主幹道擔負疏導交通的重要作用,因此對主幹道交通流的控制與管理的研究是非常必要的。分享友人