傳信通道 的英文怎麼說
中文拼音 [zhuànxìntōngdào]
傳信通道
英文
signalling channel-
The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time. in order to improve the communication quality of the shortwave that depends on the ionosphere, we should have aknowledge of the current condition of the ionosphere in real time. the backscatter sounding of high frequency can diagnose the real - time channel characters for shortwave communication or hf radar, which is great assistant to shortwave communication and hf radar
電離層是隨機時變，各向異性，非均勻、色散的復雜介質。為了保證依賴于電離層進行的短波通信質量，必須了解電離層的實時狀態信息。高頻返回散射探測可以實時監測與短波通信或高頻天波雷達相關的天波傳播通道的狀態，對短波通信和天波雷達工作起了重要的輔助作用。We discuss the characteristic of wireless channel and hf " s at the forepart of the paper and, analysis several typical model about hf channel, and consider the math representation and statistic characterization, after that we select watterson hf channel model as the simulated model in this paper
在論文開始我們討論了無線通信通道的傳播特性和高頻通道的傳播特性，分析了高頻通道的數學表述和統計特性，最後我們選擇了watterson高頻通信模型作為本論文的模擬和模擬模型。The multiplexer which is used to multiplex and demultiplex the digital tone and low speed data in a channel is the key transitting e - quipment in the electric power transitting system
實現數字話音和低速遠動數據二者在一條通信通道上的多路復用和解復用器，是電力通信傳輸系統中的一項關鍵設備。Dvb / mpeg - 2 transport stream multiplexer / demultiplex takes an important role in digital video broadcasting system. it can combine several transport streams from source encoder into a single transport stream to transport channel, or demultiplex trasnsport stream into one program sorce to source decoder. its performance has a great influence on the program transmission ability of hdtv system and the decoding quality of decoder in hdtv receiver. mpeg - 2 system multiplexer signalized video, audio, host data and so on to fixed length packet type for making transport stream
Dvb mpeg - 2傳送流復用解復用是數字電視廣播系統中的重要組成部分之一，它將從信源編碼器輸出的多路節目源復用成一路傳輸流送入傳輸通道，或者從通道中包含多路節目源的一路傳輸流中解復用出一路節目送到解碼器解碼。The wireless channel based on spread spectrum modulation can assure the digital video signal communication safe and withstanding the high noise disturbing condition
而基於擴頻技術的無線通信通道，為視頻的傳輸提供了保密及抗干擾性能強等優點。Analysis of signal energy transmission in blue - green laser uplink propagation model
藍綠激光上行傳輸通道的信號能量傳遞分析It contributes to the deeper comprehesion of these probability distributions, affords more detailed theoretical basis for further studying and simulating satellite mobile channels, ? theoretical analyses and discussions of the models which are often used in the study of the propagating characteristics of satallite mobile channels are given ; meantime, some discussions on the work of model simulations are also given, ? incorrect derivation of the equality between c. loo model and corazza model in some other papers is pointed out. via the conception of received power, we derivate that in the rural environments these two models really have the equal relationship by the way of theoretical derivation and simulatant fittings. therefore, it is able to use corazza model in studying the characteristics of satellite mobile channels in the rural environments and able to avoid the iterant work of modeling, in order to enhance the efficiency and accuracy of research work, ? detailed processes of simulating lutz model by using matlab6. 0 _ simulink4. 0 and the results of comparisions are given
本文包含有以下的主要內容： ?對衛星移動通信通道傳播特性研究中常用的三個概率分佈給出了詳細的推導過程；以便對這幾個在衛星移動通信通道傳播特性的研究中常用的概率分佈函數有更深的理解，對進一步研究衛星移動通信通道傳播特性和對通道的建模提供了更為詳盡的理論基礎； ?對衛星移動通信通道傳播特性的研究中常用的通道模型進行了理論上的分析和討論，並對衛星移動通信通道建模的研究工作提出了一定的看法； ?指出了以前的文獻中關于c . loo模型和corazza模型的等同性的證明錯誤；並從接收信號功率的角度出發，通過理論推導及模擬曲線擬合重新證明了在鄉村環境下，這兩個模型的確是具有等同性的；從而在對鄉村環境下的衛星移動通信通道傳播特性進行研究時，可以只採用corazza模型來對實際的通道進行建模，這樣可以避免重復的建模工作並提高研究工作的效率和準確性； ?給出了lutz模型在matlab6 . 0 _ simulink4 . 0環境下的軟體模擬實現的詳細過程和整體模擬測試的對比結果，保證了該模型在硬體實現時的可靠性和可行性，從而可以將它們應用於指導模型的硬體模擬實現並可以降低硬體實現時的風險。The baseband processor and system controller interface in wireless communication, which is utstarcom, the center of researching wireless communication software a part of data transmission passway of simulator of user equipment
無線通信中基帶處理器與系統控制器介面是ut斯達康公司無線通信軟體研究中心設計的userequipment模擬器中的數據傳送通道的一部分。Solution for information transmission channel of the centralized control station integrated automatic system
集控站綜合自動化信息傳輸通道的解決方案In this thesis, we realize the web - based rtu in telecontrol system for electrical railway systems by using new techniques of computer, communication, and existing the resources of super - speed fiber optic cable that we have already had. besides, we also realize the multi - receiver of the rtu real - time information and the consistency of the information ; the bottleneck problem of the communication and " information solitary island " can also be solved. improving the consistency and real - time performance of information transmission, sending all kinds of information more accurate, safety and faster to the places where the information is required and receiving permitted, realizing larger scope information sharing are all newly and highly anticipated projects in the area of supervise and control
最大程度的結合新型計算機通信、網路及軟硬體技術，利用目前已經具備的高速光纜通道資源，實現scada系統被控端基於web方式的廣泛聯網，可以解決rtu信息一發多收、一致性，通信瓶頸及『信息孤島』等問題，提高信息傳輸的實時性和一致性，把各種信息更加準確、安全、快速的送到所有需要並被允許的地方，實現更大范圍的信息共享，是目前監控領域的一個嶄新而又備受關注的課題，本文首先綜述了電氣化鐵道scada （電鐵scada ）系統的三大組成部分：調度端、被控端和通信通道的發展概況，闡述了傳統模式的電鐵遠動系統的弊端所在，接著提出了基於web模式的電鐵scada系統硬體結構設計。How to choose the computer ' s correspondence net construction and the data transferring channel
淺談如何選擇計算機通信網結構和數據傳輸通道There are two major technology areas in telephone communications. the first is transmission : equipment and facilities related to a communications path connecting endpoints
在電話通信中有兩大技術領域：第一個是傳輸，即與連接端點的電信通道相關的設備與設施。If signal not pre - distorted, the variable capacity cv1 enables to correct the inclination of the transmitted pass band
以未預失真條件信號、這個同樣的標準，可變電容cv1賦予權利去校正已傳輸通道波段的傾斜度。The itu has brought out a serial of recommendation for the videophone, but the video part of the videophone is the most difficult question puzzled all the technicians of the world
但是國際電信聯盟為了可視電話的實用化，相繼提出了一系列適應電信傳輸通道和技術水平的可視電話和會議電視建議。但是由於可視電話中視頻部分的技術難題始終是個困擾全世界視頻壓縮技術工作者的難題。Blind source separation is to separate sources from mixed signals, without knowing about the characters of the sources and how they are mixed, only assuming that the sources are independent with each other. blind source separation is a part of blind signal processing
盲分離是指在不知道源信號的特徵，而且也不知道信號在傳輸通道中的混合過程，只假設源信號是相互統計獨立的情況下，從觀測信號中分離出源信號的技術。According to the research of the medium - voltage power line transmission characteristics and frequency - domain modeling of bottom up mode that is to accquire characteristic parameters by theoretical calculation, the characteristic modeling of medium - voltage power line is established, and the suitable parameters which can restrain the signal attenuation is gained
本文首先通過對中壓電力線傳輸特性的研究，利用從下往上的頻域研究模式，即通過理論計算獲得特徵參數，建立了中壓電力線傳輸通道特性模型，推出了符合中壓電力線傳輸函數變化的參數，可以有效地抑制信號衰減。The interference resisting measures are discussed in the article, such as sensor designing, signal transmission package, pcb designing, signal processing, etc. the measures make the system has a strong ability of interference resisting and enhance the signal noise ratio
本論文從信號檢測傳感器、數據傳輸通道、 pcb布板、軟體設計等幾個方面重點研究了提高系統抗干擾能力的原理和要採取的措施，使檢測系統具有較強的抑制干擾信號的能力，提高了武漢理工大學碩士學位論文信噪t匕。Common data interfaces used in radio include rs - 232, etc. as the rapid growth of data speed in data radio, asynchronous serial port does not meet the need of data transmission of high - speed data radio. data radio is gradually using ethernet interface as high - speed data radio ’ s data interface, to function as a high - speed data channel between host computer and data radio. this paper brings forward a universal radio interface protocol model, whose core is taking ethernet as a high speed data channel in network protocol stack
本文針對電臺的以太網介面，經過對各種電臺的功能分析，提出了一種通用的在以太網通信中適用的報文介面協議模型，其核心思想是將以太網作為網路協議棧中內部的高速數據傳輸通道來使用，作為鏈路層和物理層之間的內部介面，同時提供電臺控制和數據傳輸兩大功能模塊。A deliberate change in waveshape, introduced either to counteract the expected effect of a subsequent transmission path or to render the signal less susceptible to noise
有意引入的波形變化，以抵消其後傳輸通道的畸變作用或減小噪聲對信號的影響。The latter primarily improves the transmission distance and reliability by selecting the repeater automatically. the frequency domain auto - adaptatation filter algorithm is deduced and reliabity by selecting the repeater automatically. the frequency domain auto - adaptaion filter algorithm is deduced and a method of frequency domain algorithm to restrain the marrow band interference is given on the foundation of the time domain minimum mean square error auto - adaptation filter. then the meter reading system to can learn the power network structure and automatically create linked path by using neural networks auto - study ability and analyzing the reading data
後者主要是對中繼節點的自動選擇，以提高信息的傳輸距離與可靠性。針對電力線擴頻通信通道的特點，在時域最小均方誤差自適應濾波演算法的基礎上，推導了頻域自適應濾波演算法，並提出了頻域演算法抑制窄帶干擾的具體方法。運用神經網路的自學習方法，通過對抄讀數據進行分析，使抄表系統感知電網拓撲結構，自動建立中繼路徑。分享友人