wideband transmission 中文意思是什麼

wideband transmission 解釋
寬帶傳輸
  • wideband : 多種頻率的
  • transmission : n 遞送；傳遞；傳達；傳染；移轉；【機械工程】傳動；傳遞；變速器；聯動機件；【無線電】傳送；發射；...
  1. China telecom has pushed the construction of base fiber transmission network, extending services including all the country - level above cities and most of the towns in the south areas, which settled up the ip - based wideband network and the introduction of new technologies with the program

    中國電信在「十五」期間大力推進了以光纖為主的基礎傳輸網建設，努力拓展光纜網路的覆蓋范圍，光纜目前已經通達南方地區所有縣級以上城市及絕大部分鄉鎮，為中國電信未來基於ip的寬帶網路的發展和新技術的引入奠定了基礎。
  2. Firstly, the system has a good snr and high accuracy, which is owed to wideband operational amplifier being used, accurate adjustment by da, 12 - bit high sampling ad converter being applied. secondly, data transmission becomes less by using forecasting code technology and dictionary compress technology, which are run by dsp on board

    本採集系統採用400mhz增益帶寬積的運算放大器，運用da高精度校準技術，並選用高采樣率低噪聲的12位ad轉換晶元進行模擬電路和ad轉換電路設計，既保證了數據採集系統的信噪比，又提高了系統測量精度。
  3. Secondly, basing on single channel if sr receiver mathematic model, this thesis has designed if sr receiver subsystem and brought forward its design project and system circuit principle diagram, and explained the system working principle. furthermore, this thesis introduces the working principles and respective applications of wideband high - speed adc ad6640, ddc ad6620 and high - speed dsp tms320c6713 according with the if sr receiver subsystem high - speed analog digital conversion department, digital down conversion department and high speed digital signal processing department. thirdly, the thesis emphatically demonstrates the software realization department of the if sr receiver subsystem, which including ad6620 ' s inner parameter software setup, tms320c6713 data transmission and processing and the quadrant demodulation algorithm program realization

    其次，基於單通道中頻軟體無線電接收機數學模型，本文設計了中頻（ if ， intermediatefrequency ）軟體無線電接收機子系統，給出了中頻軟體無線電接收機子系統的設計方案和系統電路原理圖，說明了系統工作原理，並分別對應系統中的高速模數轉換部分、數字下變頻部分、基帶數字碩士學位論文軟體無線電理論研究及中頻軟體無線電接收機子系統設計信號處理部分，介紹了高速adcad664o ，數字下變頻器（ ddc ， digitaldownconverter ） ad6620 ，高速數字信號處理器（ dsp ， digitalsignalproeessor ） tms320c6713的工作原理，以及它們在中頻軟體無線電接收機子系統中的應用。
  4. Ideally, the voltage ’ s transmission efficiency of blumlein can reach to 100 percent, which is two times of the single pulse - forming line ’ s, so it will be applied widely in ultra - wideband source circuit

    而且理想情況下雙脈沖形成網路的電壓傳輸效率可達到百分之百，是單形成線的2倍，使其將會在超短脈沖源產生電路中得到廣泛應用。
  5. It is based on the mean square error ( mse ) principle and we prove the validity of the method by computer simulations. to make a thorough understanding of mimo adaptive equalization system, in this thesis the author : 1 ) ananlyze the characteristics of mimo wideband channels and the modeling and simulation of 3gpp scm ; 2 ) research the capability of mimo linear adaptive equalization and mimo non - linear adaptive equalization by computer simulations ; 3 ) present a new method for selecting the order of adfe model 4 ) implement the adfe on adsp - 21160 for static image transmission, and already achieve satisfactory experimental result, which make a foundation for mimo adaptive equalization to be appllied in the real communication systems

    為對mimo自適應均衡系統性能和設計做更深入的理解和研究，本文主要: 1 ）研究了寬帶選擇衰落通道特性及3gppscm通道建模模擬; 2 ） mimo線性自適應均衡器和mimo非線性自適應均衡器系統的性能分析和模擬實現; 3 ） mimo系統下的判決反饋均衡器的階數選擇模擬試驗分析; 4 ）把mimo自適應判決反饋均衡運用到了硬體模擬平臺上，採用了基於adsp - 21160的硬體dsp開發板，對靜止圖片的傳輸進行了試驗、分析和比較，得到了較滿意的實驗結果，使mimo自適應均衡在實際通信系統上的應用及實現奠定了現實基礎。
  6. A novel based on eigenvector combine transmission diversity scheme for ultra - wideband communication system

    一種新的基於特徵向量合併的超寬帶系統分集方案
  7. In this dissertation, we investigate in depth the optimal allocation of the various system resources including subchannel, power and transmission rate. first, a multicarrier ds - cdma system model for wideband access is proposed, according to the characteristic of wireless channels, the subchannel allocation is investigated in forward links of the multicarrier ds - cdma system

    本文對主要的系統資源，即通道、功率和傳輸速率的分配優化問題進行了深入的研究，主要包括：首先，在分析無線通道傳輸特性的基礎上，提出了一種基於多載波ds - cdma的支持寬帶多業務接入的系統模型。
  8. Concerning the choice of transmission modules of backbone network, it has given ample account and has conducted analytical research on various forms of transmission technology and features in terms of sdh, atm, otn and wideband ip technology that have been accredited by communication circles

    2 、針對sdh 、 atm 、 otn和寬帶ip技術，就骨幹網採用何種形式的傳輸技術、特點進行了充分的論述和分析研究。
  9. The next - generation mobile communication systems are expected to provide wideband transmission for mobiles and support multiple services

    下一代移動通信系統需要實現寬帶傳輸，並能支持多種業務。
  10. But between the lan and backbone is provided by much lower bandwidth technologies available through the existing copper wire, adsl, cable modem, and the " last mile " ( between the lan and fiber backbone ) problem has become a bottle - neck in the wideband transmission

    但是光纖干線和局域網間接入系統卻是傳統的銅纜、 adsl 、同軸電纜等，傳輸速率都在10mbps以下。所以光纖和局域網間「最後一公里」的接入成為解決寬帶傳輸的瓶頸問題。
  11. With the plentifulness of the internet resources and the development of the 3g mobile communication network, customer request correspond by communication contents to continuously increase and this needs make the system capacity, transmittable velocity, communication quality and the safety of wireless communication become hot point in the study field of wireless wideband transmission today

    隨著網際網路資源的豐富和第三代移動通信網路的發展，無線用戶對通信內容的要求不斷提高，使得無線通信系統的傳輸容量、傳輸速率、通信質量和通信安全性問題成為當前無線寬帶傳輸領域研究的熱點。
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