baseband transmission 中文意思是什麼

baseband transmission 解釋
基帶傳輸
  • baseband : 基本頻帶
  • 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. In this paper, research on the algorithm of complete digital if and baseband transmission system and the realization of transmitter and receiver. / 4 - dqpsk is chosen as digital modulation scheme. the scheme of demodulation is baseband differential detection. sliding correlator can realize the symbol synchronous acquisition ; early - late gate synchronizer is used to do symbol synchronous tracking

    系統的發射機選定/ 4 - dqpsk為調制方式，接收機採用基帶差分解調的非相干解調方式，滑動相關器捕獲發送的pn序列，早遲門同步器跟蹤符號同步，使用相關器對同步后的符號進行最佳判決，並在這些演算法實現的基礎上，實現了直接序列擴頻和解擴技術。
  2. With the established rf front - end system simulation platform, adding the digital modulated baseband signal, this paper simulated the multifold digital modulated signal ’ s transmission, such as 2ask, qpsk, and 16qam. then researches of power compression and phase noise of local oscillation influence the bit error ratio for different modulated system. the designing is satisfied multifold functions request with the high - powered and integrated broadband rf front - end

    隨后在建立的寬帶射頻前端通用模擬平臺上，加入基帶數字調制信號，對多種數字調制格式的信號在該通用平臺上的傳輸作了研究，模擬了2ask 、 qpsk和16qam等調制格式信號的發射與接收，研究了功率壓縮和本振相位噪聲對不同調制的誤碼率影響，實現了滿足多種功能要求的寬帶高性能綜合射頻前端的設計。
  3. Research on distortionless transmission of digital baseband signal of mine monitoring system

    礦用監控系統數字基帶信號無失真傳輸的研究
  4. Moreover, the corporation, for the first time, used fiber optic for the baseband transmission of tv signals, and thus got a good knowledge of this technology. a trained staff also emerged, laying the foundation for the tv transmission of major events later. 2

    在廣播電視傳送中，首次採用光纜進行廣播電視信號的基帶傳送，了解掌握了這項技術，做到了與世界先進水平同步，培養鍛煉了一批人才，為日後一系列重大的國事活動中的電視傳送打下了堅實的基礎。
  5. 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。
  6. In the point of - information theory ; - the - baseband binary pulse amplitude modulated ( pam ) signal transmission, via turning the nonlinear receiver ' s parameters, is studied over an additive white gaussian noise ( awgn ) channel. it is demonstrated that the channel capacity of binary communication systems, for a given signal added noise, can be maximized by optimal designed receivers. this new form of sr is referred to as psr in a broad sense

    本文研究並設計了含有雙穩態隨機共振系統作為一個接收裝置的基帶數字通信系統，在加性高斯白噪聲通道中，通過研究這個非線性接收器的性能，發現了數字信號傳輸中存在的參數調節隨機共振現象?通道容量隨著系統響應速度的增加具有一個共振峰值，並對這種非線性現象發生的基本機理進行了解釋。
  7. In the view of stochastic resonance ( sr ) and signal processing, parameter - turning sr ( psr ) theory and method is proposed and the characteristics of bistable systems are studied. the applications of psr in multi - frequency analog signal processing, digital baseband pulse - amplitude modulation signal transmission and digital carrier modulation signal transmission are investigated. this thesis has also introduced the concepts of parameter - adaptive sr and array - induced sr

    本文主要從隨機共振物理力學機理與信號處理的角度，研究了非線性雙穩態系統的數字特徵，提出了參數調節隨機共振（ psr ）理論和方法，並將這一理論應用到多頻模擬信號處理、數字基帶信號傳輸和數字載波調制信號傳輸中，引入了參數自適應隨機共振和陣列隨機共振系統的概念。
  8. Chapter iv advances a proposed systematic scheme of power line receivers in accordance with homeplugl. o on the basis of analysis in chapter iii, present the implementation of an ofdm baseband transmission platform based on mpc860t embedded system

    第四章在前幾章的理論基礎上，提出了適合於homeplug1 . 0的電力線載波通信接收機的系統方案，同時介紹了基於mpc860t的ofdm基帶傳輸系統平臺的嵌入式實現，對整個平臺的硬體和軟體構成都有較為詳細的介紹。
  9. We discussed detailedly the application of parameter - induced stochastic resonance in binary baseband pulse amplitude modulated ( pam ) signal transmission. the system ' s measurements : bit error rate and channel capacity were deduced. the numerical simulation demonstrated our theoretical analyses

    我們著重討論了參數誘導的隨機共振在二進制基帶脈沖幅值調制（ pam ）信號傳輸中的應用，詳細推導出了衡量系統傳輸性能的誤碼率和通道容量公式，並利用模擬模型進行了數值模擬，理論分析和模擬結果非常符合。
  10. Type of baseband transmission and modem

    數據傳輸類型及數據機
  11. Based on the discussion of chapter two, chapter three gives the baseband transmission architecture of ofdm communication system

    第三章在上一章討論的基礎上，給出了ofdm通信系統的基帶傳輸結構。
  12. The thesis makes and works as follows : at first, established the mobile channel model, through the analysis of the mobile channel characteristics ; the second, proved the advantage of ofdm througth comparing several parallel technologies, and implanting the ofdm technique in the mobile communication system modulator ; then, this thesis gived the baseband transmission architecture of ofdm mobile communication system and established the model of ofdm mobile communication system. at last, the thesis gives a brief introduction of the design of the hardware platform for the wireless communication system as well as the data transmission flaw

    以下是本文所作主要工作：通過分析移動通道的特性建立了移動通信系統通道模型； ofdm技術與傳統的并行傳輸技術相比，具有很大的優勢，結合建立的移動通道模型，將此技術應用在移動通信系統之中；在對ofdm技術基本原理進行分析的基礎上，對ofdm移動通信系統進行建模與模擬分析：最後，給出了詳細的ofdm移動通信系統發射機和接收機的原理框圖，提出了一套基於dsp & fpga的ofdm移動通信系統硬體平臺設計方案。
  13. This project study the all - digital modulation and demodulation of / 4 offset differentially encoded quadrature phase shift keying ( / 4 - dqpsk ). then use / 4 - dqpsk digital modulation and baseband differential demodulation technology to implement digital signal transmission. the bite rate is 500kb / s and the intermediate frequency is 2mhz

    本課題對/ 4 - dqpsk的全數字調制解調技術進行研究，利用/ 4 - dqpsk數字調制和基帶差分解調技術實現數字信號的傳輸，實現傳輸碼率500kbps ，調制中頻2mhz 。
  14. The single dsp can transmit baseband signal to digital up converter and receive baseband sample signal from digital down converter through the control of interrupt signal at the same time. the stability and reliability of complete digital transmission system can be realized by this way

    本文利用dsp的中斷控制，在單片dsp內發送基帶數字信號同時處理來自數字下變頻器的基帶數字信號，實現了穩定、可靠的全數字中頻與基帶傳輸系統。
  15. ( before the proposal of this standard, use of ofdm was limited to continuous transmission systems ) combined with the national high technology project named " key techniques of the wireless module in fieldbus facilities ", author focuses on the research of baseband technologies of ieee802. il / lla physical layer, and put forward some novel algorithms about the timing and frequency offset synchronization and the channel estimation of ofdm transreceiver in wlan, which have been published on some kernel transaction and international conference and shows the author ' s great research achievements

    結合作者研究生階段「現場總線設備中的無線通信模塊關鍵技術研究」 863課題，作者對ieee802 . 11 11a [ 1 ]物理層基帶部分相關技術做了深入研究，提出了無線局域網中ofdm基帶系統時間同步、頻偏估計以及通道估計等關鍵演算法，在國內核心期刊和國際會議上發表了相關學術論文，本文在此基礎上完成的。
  16. The thesis is composed of 9 parts : the background, significance, main topics and innovations in the thesis are introduced in chapter 1 ; in chapter 2, the main function and performance of interface circuits are described from the view of system by using the example of gigabit ethernet ' s transceiver ; the transmission media ' s frequency characteristics and model are analyzed for the high - speed data transmission system in chapter 3 ; the line driver is presented in chapter 4 ; the equalization principles for high - speed data transmission system are introduced in chapter 5 ; a novel adaptive equalizer for 1000base - cx transceiver is presented in chapter 6 ; in chapter 7, a fixed equalizer for 2. 5gbps transceiver is described ; in chapter 8, layout design and measured results are discussed ; at last, the conclusions are drawn in chapter 9. during period of finishing the thesis, i read lots of literatures about the interface circuits in high - speed data transmission system, studied their principles and design techniques, and designed : 1 、 the line driver for 2. 5gbps baseband copper cable transceiver ; 2 、 the fixed equalizer for 2. 5gbps baseband copper cable transceiver ; 3 、 the fixed equalizer for 1. 5gbps sata ( serial at attachment ) transceiver ; 4 、 an adaptive equalizer for 1000base - cx transceiver

    論文由9部分組成：在第一章引言中介紹了論文的背景、意義、國內外研究現狀，以及論文的主要內容和創新；第二章以千兆位以太網為例，從系統的角度介紹了高速數據傳輸系統介面電路的主要功能和性能指標；第三章分析了高速數據傳輸系統的傳輸介質的頻率特性和模型；第四章描述了線驅動器的設計原理及其電路實現；第五章描述了高速數據傳輸系統的均衡原理；第六章描述了適用於1 . 25gbps基帶銅纜收發器系統的自適應均衡器的設計原理和電路實現；第七章描述了適用於2 . 5gbps基帶銅纜收發器系統和1 . 5gbps串列硬盤介面（ sata ）收發器系統的固定均衡器的設計原理及其電路實現；在第八章中分析了電路的版圖設計及晶元測試結果；最後，第九章總結了全文。在完成論文期間，查閱了大量的有關高速數據傳輸系統介面電路方面的文獻，較系統地學習了線驅動器、傳輸線和均衡器等方面的理論知識和電路設計原理，設計了用於： （ 1 ） 2 . 5gbps基帶銅纜收發器系統的線驅動器； （ 2 ） 2 . 5gbps基帶銅纜收發器系統的固定均衡器； （ 3 ） 1 . 5gbpssata系統的固定均衡器； （ 4 ） 1 . 25gbps基帶銅纜收發器系統的自適應均衡器。
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